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* [gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] [PATCH v4 2/2] RISC-V: Add support for XCValu extension in CV32E40P
@ 2023-10-12 22:00 Jeff Law
  0 siblings, 0 replies; only message in thread
From: Jeff Law @ 2023-10-12 22:00 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:505e27b8af07dd42f8aa29e38fa7004d074cf433

commit 505e27b8af07dd42f8aa29e38fa7004d074cf433
Author: Mary Bennett <mary.bennett@embecosm.com>
Date:   Wed Oct 11 07:41:38 2023 -0600

    [PATCH v4 2/2] RISC-V: Add support for XCValu extension in CV32E40P
    
    Spec: github.com/openhwgroup/core-v-sw/blob/master/specifications/corev-builtin-spec.md
    
    Contributors:
      Mary Bennett <mary.bennett@embecosm.com>
      Nandni Jamnadas <nandni.jamnadas@embecosm.com>
      Pietra Ferreira <pietra.ferreira@embecosm.com>
      Charlie Keaney
      Jessica Mills
      Craig Blackmore <craig.blackmore@embecosm.com>
      Simon Cook <simon.cook@embecosm.com>
      Jeremy Bennett <jeremy.bennett@embecosm.com>
      Helene Chelin <helene.chelin@embecosm.com>
    
    gcc/ChangeLog:
    
            * common/config/riscv/riscv-common.cc: Add the XCValu
            extension.
            * config/riscv/constraints.md: Add builtins for the XCValu
            extension.
            * config/riscv/predicates.md (immediate_register_operand):
            Likewise.
            * config/riscv/corev.def: Likewise.
            * config/riscv/corev.md: Likewise.
            * config/riscv/riscv-builtins.cc (AVAIL): Likewise.
            (RISCV_ATYPE_UHI): Likewise.
            * config/riscv/riscv-ftypes.def: Likewise.
            * config/riscv/riscv.opt: Likewise.
            * config/riscv/riscv.cc (riscv_print_operand): Likewise.
            * doc/extend.texi: Add XCValu documentation.
            * doc/sourcebuild.texi: Likewise.
    
    gcc/testsuite/ChangeLog:
    
            * lib/target-supports.exp: Add proc for the XCValu extension.
            * gcc.target/riscv/cv-alu-compile.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-addn.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-addrn.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-addun.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-addurn.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-clip.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-clipu.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-subn.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-subrn.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-subun.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile-suburn.c: New test.
            * gcc.target/riscv/cv-alu-fail-compile.c: New test.
    
    (cherry picked from commit 5ef248c15ec3490f4b98cda4bc27a667a8cf8206)

Diff:
---
 gcc/common/config/riscv/riscv-common.cc            |   2 +
 gcc/config/riscv/constraints.md                    |   7 +
 gcc/config/riscv/corev.def                         |  24 ++
 gcc/config/riscv/corev.md                          | 303 +++++++++++++++++++++
 gcc/config/riscv/predicates.md                     |   5 +
 gcc/config/riscv/riscv-builtins.cc                 |   3 +
 gcc/config/riscv/riscv-ftypes.def                  |   6 +
 gcc/config/riscv/riscv.cc                          |   7 +
 gcc/config/riscv/riscv.opt                         |   2 +
 gcc/doc/extend.texi                                |  94 +++++++
 gcc/doc/sourcebuild.texi                           |   3 +
 gcc/testsuite/gcc.target/riscv/cv-alu-compile.c    | 252 +++++++++++++++++
 .../gcc.target/riscv/cv-alu-fail-compile-addn.c    |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile-addrn.c   |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile-addun.c   |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile-addurn.c  |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile-clip.c    |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile-clipu.c   |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile-subn.c    |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile-subrn.c   |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile-subun.c   |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile-suburn.c  |  11 +
 .../gcc.target/riscv/cv-alu-fail-compile.c         |  32 +++
 gcc/testsuite/lib/target-supports.exp              |  13 +
 24 files changed, 863 insertions(+)

diff --git a/gcc/common/config/riscv/riscv-common.cc b/gcc/common/config/riscv/riscv-common.cc
index 62de116803e..908e8e0c8bd 100644
--- a/gcc/common/config/riscv/riscv-common.cc
+++ b/gcc/common/config/riscv/riscv-common.cc
@@ -311,6 +311,7 @@ static const struct riscv_ext_version riscv_ext_version_table[] =
   {"svpbmt",  ISA_SPEC_CLASS_NONE, 1, 0},
 
   {"xcvmac", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"xcvalu", ISA_SPEC_CLASS_NONE, 1, 0},
 
   {"xtheadba", ISA_SPEC_CLASS_NONE, 1, 0},
   {"xtheadbb", ISA_SPEC_CLASS_NONE, 1, 0},
@@ -1483,6 +1484,7 @@ static const riscv_ext_flag_table_t riscv_ext_flag_table[] =
   {"ztso", &gcc_options::x_riscv_ztso_subext, MASK_ZTSO},
 
   {"xcvmac",        &gcc_options::x_riscv_xcv_subext, MASK_XCVMAC},
+  {"xcvalu",        &gcc_options::x_riscv_xcv_subext, MASK_XCVALU},
 
   {"xtheadba",      &gcc_options::x_riscv_xthead_subext, MASK_XTHEADBA},
   {"xtheadbb",      &gcc_options::x_riscv_xthead_subext, MASK_XTHEADBB},
diff --git a/gcc/config/riscv/constraints.md b/gcc/config/riscv/constraints.md
index 964fdd450c9..07ee14dd689 100644
--- a/gcc/config/riscv/constraints.md
+++ b/gcc/config/riscv/constraints.md
@@ -151,6 +151,13 @@
 (define_register_constraint "zmvr" "(TARGET_ZFA || TARGET_XTHEADFMV) ? GR_REGS : NO_REGS"
   "An integer register for  ZFA or XTheadFmv.")
 
+;; CORE-V Constraints
+(define_constraint "CVP2"
+  "Checking for CORE-V ALU clip if ival plus 1 is a power of 2"
+  (and (match_code "const_int")
+       (and (match_test "IN_RANGE (ival, 0, 1073741823)")
+            (match_test "exact_log2 (ival + 1) != -1"))))
+
 ;; Vector constraints.
 
 (define_register_constraint "vr" "TARGET_VECTOR ? V_REGS : NO_REGS"
diff --git a/gcc/config/riscv/corev.def b/gcc/config/riscv/corev.def
index a4e94680d8e..17580df3c41 100644
--- a/gcc/config/riscv/corev.def
+++ b/gcc/config/riscv/corev.def
@@ -17,3 +17,27 @@ RISCV_BUILTIN (cv_mac_macuRN,    "cv_mac_macuRN",     RISCV_BUILTIN_DIRECT, RISC
 RISCV_BUILTIN (cv_mac_machhuRN,  "cv_mac_machhuRN",   RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_USI_USI_USI_UQI,  cvmac),
 RISCV_BUILTIN (cv_mac_macsRN,    "cv_mac_macsRN",     RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI_SI_UQI,      cvmac),
 RISCV_BUILTIN (cv_mac_machhsRN,  "cv_mac_machhsRN",   RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI_SI_UQI,      cvmac),
+
+// XCVALU
+RISCV_BUILTIN (cv_alu_slet,     "cv_alu_slet",  RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI,     cvalu),
+RISCV_BUILTIN (cv_alu_sletu,    "cv_alu_sletu", RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_USI_USI,   cvalu),
+RISCV_BUILTIN (cv_alu_min,      "cv_alu_min",   RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI,     cvalu),
+RISCV_BUILTIN (cv_alu_minu,     "cv_alu_minu",  RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_USI_USI,  cvalu),
+RISCV_BUILTIN (cv_alu_max,      "cv_alu_max",   RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI,     cvalu),
+RISCV_BUILTIN (cv_alu_maxu,     "cv_alu_maxu",  RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_USI_USI,  cvalu),
+
+RISCV_BUILTIN (cv_alu_exths,    "cv_alu_exths", RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_HI,        cvalu),
+RISCV_BUILTIN (cv_alu_exthz,    "cv_alu_exthz", RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_UHI,      cvalu),
+RISCV_BUILTIN (cv_alu_extbs,    "cv_alu_extbs", RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_QI,        cvalu),
+RISCV_BUILTIN (cv_alu_extbz,    "cv_alu_extbz", RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_UQI,      cvalu),
+
+RISCV_BUILTIN (cv_alu_clip,     "cv_alu_clip",  RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI,     cvalu),
+RISCV_BUILTIN (cv_alu_clipu,    "cv_alu_clipu", RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_USI_USI,  cvalu),
+RISCV_BUILTIN (cv_alu_addN,     "cv_alu_addN",  RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI_UQI, cvalu),
+RISCV_BUILTIN (cv_alu_adduN,    "cv_alu_adduN", RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_USI_USI_UQI,  cvalu),
+RISCV_BUILTIN (cv_alu_addRN,    "cv_alu_addRN", RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI_UQI, cvalu),
+RISCV_BUILTIN (cv_alu_adduRN,   "cv_alu_adduRN",RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_USI_USI_UQI,  cvalu),
+RISCV_BUILTIN (cv_alu_subN,     "cv_alu_subN", RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI_UQI, cvalu),
+RISCV_BUILTIN (cv_alu_subuN,    "cv_alu_subuN", RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_USI_USI_UQI,  cvalu),
+RISCV_BUILTIN (cv_alu_subRN,    "cv_alu_subRN", RISCV_BUILTIN_DIRECT, RISCV_SI_FTYPE_SI_SI_UQI, cvalu),
+RISCV_BUILTIN (cv_alu_subuRN,   "cv_alu_subuRN",RISCV_BUILTIN_DIRECT, RISCV_USI_FTYPE_USI_USI_UQI,  cvalu),
diff --git a/gcc/config/riscv/corev.md b/gcc/config/riscv/corev.md
index 65ce09ea6eb..1350bd4b81e 100644
--- a/gcc/config/riscv/corev.md
+++ b/gcc/config/riscv/corev.md
@@ -17,6 +17,15 @@
 ;; along with GCC; see the file COPYING3.  If not see
 ;; <http://www.gnu.org/licenses/>.
 
+(define_c_enum "unspec" [
+
+  ;;CORE-V ALU
+  UNSPEC_CV_ALU_CLIP
+  UNSPEC_CV_ALU_CLIPR
+  UNSPEC_CV_ALU_CLIPU
+  UNSPEC_CV_ALU_CLIPUR
+])
+
 ;; XCVMAC extension.
 
 (define_insn "riscv_cv_mac_mac"
@@ -388,3 +397,297 @@
   "cv.machhsrn\t%0,%1,%2,%4"
   [(set_attr "type" "arith")
   (set_attr "mode" "SI")])
+
+;; XCVALU builtins
+
+(define_insn "riscv_cv_alu_slet"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+    (le:SI
+      (match_operand:SI 1 "register_operand" "r")
+      (match_operand:SI 2 "register_operand" "r")))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.sle\t%0, %1, %2"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_sletu"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+    (leu:SI
+      (match_operand:SI 1 "register_operand" "r")
+      (match_operand:SI 2 "register_operand" "r")))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.sleu\t%0, %1, %2"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_min"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+    (smin:SI
+      (match_operand:SI 1 "register_operand" "r")
+      (match_operand:SI 2 "register_operand" "r")))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.min\t%0, %1, %2"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_minu"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+    (umin:SI
+      (match_operand:SI 1 "register_operand" "r")
+      (match_operand:SI 2 "register_operand" "r")))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.minu\t%0, %1, %2"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_max"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+    (smax:SI
+      (match_operand:SI 1 "register_operand" "r")
+      (match_operand:SI 2 "register_operand" "r")))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.max\t%0, %1, %2"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_maxu"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+    (umax:SI
+      (match_operand:SI 1 "register_operand" "r")
+      (match_operand:SI 2 "register_operand" "r")))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.maxu\t%0, %1, %2"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_exths"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+   (sign_extend:SI
+     (truncate:HI
+       (match_operand:HI 1 "register_operand" "r"))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.exths\t%0, %1"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_exthz"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+   (zero_extend:SI
+     (truncate:HI
+       (match_operand:HI 1 "register_operand" "r"))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.exthz\t%0, %1"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_extbs"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+   (sign_extend:SI
+     (truncate:QI
+       (match_operand:QI 1 "register_operand" "r"))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.extbs\t%0, %1"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_extbz"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+   (zero_extend:SI
+     (truncate:QI
+   (match_operand:QI 1 "register_operand" "r"))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "cv.extbz\t%0, %1"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_clip"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+   (unspec:SI [(match_operand:SI 1 "register_operand" "r,r")
+               (match_operand:SI 2 "immediate_register_operand" "CVP2,r")]
+    UNSPEC_CV_ALU_CLIP))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.clip\t%0,%1,%X2
+  cv.clipr\t%0,%1,%2"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_clipu"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+   (unspec:SI [(match_operand:SI 1 "register_operand" "r,r")
+               (match_operand:SI 2 "immediate_register_operand" "CVP2,r")]
+    UNSPEC_CV_ALU_CLIPU))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.clipu\t%0,%1,%X2
+  cv.clipur\t%0,%1,%2"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_addN"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+    (ashiftrt:SI
+      (plus:SI
+        (match_operand:SI 1 "register_operand" "r,0")
+        (match_operand:SI 2 "register_operand" "r,r"))
+      (and:SI (match_operand:QI 3 "csr_operand" "K,r")
+              (const_int 31))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.addn\t%0,%1,%2,%3
+  cv.addnr\t%0,%2,%3"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_adduN"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+    (lshiftrt:SI
+      (plus:SI
+        (match_operand:SI 1 "register_operand" "r,0")
+        (match_operand:SI 2 "register_operand" "r,r"))
+      (and:SI (match_operand:QI 3 "csr_operand" "K,r")
+              (const_int 31))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.addun\t%0,%1,%2,%3
+  cv.addunr\t%0,%2,%3"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_addRN"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+    (ashiftrt:SI
+      (plus:SI
+        (plus:SI
+          (match_operand:SI 1 "register_operand" "r,0")
+          (match_operand:SI 2 "register_operand" "r,r"))
+        (if_then_else (eq (match_operand:QI 3 "csr_operand" "K,r")
+                          (const_int 0))
+          (const_int 1)
+          (ashift:SI (const_int 1)
+            (minus:QI (match_dup 3)
+                      (const_int 1)))))
+      (and:SI (match_dup 3)
+              (const_int 31))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.addrn\t%0,%1,%2,%3
+  cv.addrnr\t%0,%2,%3"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_adduRN"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+    (lshiftrt:SI
+      (plus:SI
+        (plus:SI
+          (match_operand:SI 1 "register_operand" "r,0")
+          (match_operand:SI 2 "register_operand" "r,r"))
+        (if_then_else (eq (match_operand:QI 3 "csr_operand" "K,r")
+                          (const_int 0))
+          (const_int 1)
+          (ashift:SI (const_int 1)
+            (minus:QI (match_dup 3)
+                      (const_int 1)))))
+      (and:SI (match_dup 3)
+              (const_int 31))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.addurn\t%0,%1,%2,%3
+  cv.addurnr\t%0,%2,%3"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_subN"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+    (ashiftrt:SI
+      (minus:SI
+        (match_operand:SI 1 "register_operand" "r,0")
+        (match_operand:SI 2 "register_operand" "r,r"))
+      (and:SI (match_operand:QI 3 "csr_operand" "K,r")
+              (const_int 31))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.subn\t%0,%1,%2,%3
+  cv.subnr\t%0,%2,%3"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_subuN"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+    (lshiftrt:SI
+      (minus:SI
+        (match_operand:SI 1 "register_operand" "r,0")
+        (match_operand:SI 2 "register_operand" "r,r"))
+      (and:SI (match_operand:QI 3 "csr_operand" "K,r")
+              (const_int 31))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.subun\t%0,%1,%2,%3
+  cv.subunr\t%0,%2,%3"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_subRN"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+    (ashiftrt:SI
+      (plus:SI
+        (minus:SI
+          (match_operand:SI 1 "register_operand" "r,0")
+          (match_operand:SI 2 "register_operand" "r,r"))
+        (if_then_else (eq (match_operand:QI 3 "csr_operand" "K,r")
+                          (const_int 0))
+          (const_int 1)
+          (ashift:SI (const_int 1)
+            (minus:QI (match_dup 3)
+                      (const_int 1)))))
+      (and:SI (match_dup 3)
+              (const_int 31))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.subrn\t%0,%1,%2,%3
+  cv.subrnr\t%0,%2,%3"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
+
+(define_insn "riscv_cv_alu_subuRN"
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+    (lshiftrt:SI
+      (plus:SI
+        (minus:SI
+          (match_operand:SI 1 "register_operand" "r,0")
+          (match_operand:SI 2 "register_operand" "r,r"))
+        (if_then_else (eq (match_operand:QI 3 "csr_operand" "K,r")
+                          (const_int 0))
+          (const_int 1)
+          (ashift:SI (const_int 1)
+            (minus:QI (match_dup 3)
+                      (const_int 1)))))
+      (and:SI (match_dup 3)
+              (const_int 31))))]
+
+  "TARGET_XCVALU && !TARGET_64BIT"
+  "@
+  cv.suburn\t%0,%1,%2,%3
+  cv.suburnr\t%0,%2,%3"
+  [(set_attr "type" "arith")
+  (set_attr "mode" "SI")])
diff --git a/gcc/config/riscv/predicates.md b/gcc/config/riscv/predicates.md
index 6b72a5f4e07..a37d035fa61 100644
--- a/gcc/config/riscv/predicates.md
+++ b/gcc/config/riscv/predicates.md
@@ -395,6 +395,11 @@
 	return true;
 })
 
+;; CORE-V Predicates:
+(define_predicate "immediate_register_operand"
+  (ior (match_operand 0 "register_operand")
+       (match_code "const_int")))
+
 ;; Predicates for the V extension.
 (define_special_predicate "vector_length_operand"
   (ior (match_operand 0 "pmode_register_operand")
diff --git a/gcc/config/riscv/riscv-builtins.cc b/gcc/config/riscv/riscv-builtins.cc
index 1f733337b82..fc3976f3ba1 100644
--- a/gcc/config/riscv/riscv-builtins.cc
+++ b/gcc/config/riscv/riscv-builtins.cc
@@ -127,6 +127,7 @@ AVAIL (hint_pause, (!0))
 
 // CORE-V AVAIL
 AVAIL (cvmac, TARGET_XCVMAC && !TARGET_64BIT)
+AVAIL (cvalu, TARGET_XCVALU && !TARGET_64BIT)
 
 /* Construct a riscv_builtin_description from the given arguments.
 
@@ -163,6 +164,8 @@ AVAIL (cvmac, TARGET_XCVMAC && !TARGET_64BIT)
 #define RISCV_ATYPE_UHI unsigned_intHI_type_node
 #define RISCV_ATYPE_USI unsigned_intSI_type_node
 #define RISCV_ATYPE_UDI unsigned_intDI_type_node
+#define RISCV_ATYPE_QI intQI_type_node
+#define RISCV_ATYPE_HI intHI_type_node
 #define RISCV_ATYPE_SI intSI_type_node
 #define RISCV_ATYPE_VOID_PTR ptr_type_node
 
diff --git a/gcc/config/riscv/riscv-ftypes.def b/gcc/config/riscv/riscv-ftypes.def
index 430a4c2d673..0d1e4dd061e 100644
--- a/gcc/config/riscv/riscv-ftypes.def
+++ b/gcc/config/riscv/riscv-ftypes.def
@@ -32,6 +32,10 @@ DEF_RISCV_FTYPE (1, (VOID, USI))
 DEF_RISCV_FTYPE (1, (VOID, VOID_PTR))
 DEF_RISCV_FTYPE (1, (USI, USI))
 DEF_RISCV_FTYPE (1, (UDI, UDI))
+DEF_RISCV_FTYPE (1, (USI, UQI))
+DEF_RISCV_FTYPE (1, (USI, UHI))
+DEF_RISCV_FTYPE (1, (SI, QI))
+DEF_RISCV_FTYPE (1, (SI, HI))
 DEF_RISCV_FTYPE (2, (USI, UQI, UQI))
 DEF_RISCV_FTYPE (2, (USI, UHI, UHI))
 DEF_RISCV_FTYPE (2, (USI, USI, USI))
@@ -40,6 +44,8 @@ DEF_RISCV_FTYPE (2, (UDI, UHI, UHI))
 DEF_RISCV_FTYPE (2, (UDI, USI, USI))
 DEF_RISCV_FTYPE (2, (UDI, UDI, USI))
 DEF_RISCV_FTYPE (2, (UDI, UDI, UDI))
+DEF_RISCV_FTYPE (2, (SI, USI, USI))
+DEF_RISCV_FTYPE (2, (SI, SI, SI))
 DEF_RISCV_FTYPE (3, (USI, USI, USI, UQI))
 DEF_RISCV_FTYPE (3, (USI, USI, USI, USI))
 DEF_RISCV_FTYPE (3, (SI, SI, SI, UQI))
diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index d17139e945e..5990f76e57e 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -5670,6 +5670,13 @@ riscv_print_operand (FILE *file, rtx op, int letter)
 	output_addr_const (file, newop);
 	break;
       }
+    case 'X':
+      {
+	int ival = INTVAL (op) + 1;
+	rtx newop = GEN_INT (ctz_hwi (ival) + 1);
+	output_addr_const (file, newop);
+	break;
+      }
     default:
       switch (code)
 	{
diff --git a/gcc/config/riscv/riscv.opt b/gcc/config/riscv/riscv.opt
index f838f6ec55f..70d78151cee 100644
--- a/gcc/config/riscv/riscv.opt
+++ b/gcc/config/riscv/riscv.opt
@@ -409,6 +409,8 @@ int riscv_xcv_subext
 
 Mask(XCVMAC) Var(riscv_xcv_subext)
 
+Mask(XCVALU) Var(riscv_xcv_subext)
+
 TargetVariable
 int riscv_xthead_subext
 
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 807c240c090..35add9c2efd 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -21347,6 +21347,100 @@ Generates the @code{cv.macsRN} machine instruction.
 Generates the @code{cv.machhsRN} machine instruction.
 @end deftypefn
 
+These built-in functions are available for the CORE-V ALU machine
+architecture. For more information on CORE-V built-ins, please see
+@uref{https://github.com/openhwgroup/core-v-sw/blob/master/specifications/corev-builtin-spec.md#listing-of-miscellaneous-alu-builtins-xcvalu}
+
+@deftypefn {Built-in Function} {int} __builtin_riscv_cv_alu_slet (int32_t, int32_t)
+Generated assembler @code{cv.slet}
+@end deftypefn
+
+@deftypefn {Built-in Function} {int} __builtin_riscv_cv_alu_sletu (uint32_t, uint32_t)
+Generated assembler @code{cv.sletu}
+@end deftypefn
+
+@deftypefn {Built-in Function} {int32_t} __builtin_riscv_cv_alu_min (int32_t, int32_t)
+Generated assembler @code{cv.min}
+@end deftypefn
+
+@deftypefn {Built-in Function} {uint32_t} __builtin_riscv_cv_alu_minu (uint32_t, uint32_t)
+Generated assembler @code{cv.minu}
+@end deftypefn
+
+@deftypefn {Built-in Function} {int32_t} __builtin_riscv_cv_alu_max (int32_t, int32_t)
+Generated assembler @code{cv.max}
+@end deftypefn
+
+@deftypefn {Built-in Function} {uint32_tnt} __builtin_riscv_cv_alu_maxu (uint32_t, uint32_t)
+Generated assembler @code{cv.maxu}
+@end deftypefn
+
+@deftypefn {Built-in Function} {int32_t} __builtin_riscv_cv_alu_exths (int16_t)
+Generated assembler @code{cv.exths}
+@end deftypefn
+
+@deftypefn {Built-in Function} {uint32_t} __builtin_riscv_cv_alu_exthz (uint16_t)
+Generated assembler @code{cv.exthz}
+@end deftypefn
+
+@deftypefn {Built-in Function} {int32_t} __builtin_riscv_cv_alu_extbs (int8_t)
+Generated assembler @code{cv.extbs}
+@end deftypefn
+
+@deftypefn {Built-in Function} {uint32_t} __builtin_riscv_cv_alu_extbz (uint8_t)
+Generated assembler @code{cv.extbz}
+@end deftypefn
+
+@deftypefn {Built-in Function} {int32_t} __builtin_riscv_cv_alu_clip (int32_t, uint32_t)
+Generated assembler @code{cv.clip} if the uint32_t operand is a constant and an exact power of 2.
+Generated assembler @code{cv.clipr} if  the it is a register.
+@end deftypefn
+
+@deftypefn {Built-in Function} {uint32_t} __builtin_riscv_cv_alu_clipu (uint32_t, uint32_t)
+Generated assembler @code{cv.clipu} if the uint32_t operand is a constant and an exact power of 2.
+Generated assembler @code{cv.clipur} if  the it is a register.
+@end deftypefn
+
+@deftypefn {Built-in Function} {int32_t} __builtin_riscv_cv_alu_addN (int32_t, int32_t, uint8_t)
+Generated assembler @code{cv.addN} if the uint8_t operand is a constant and in the range 0 <= shft <= 31.
+Generated assembler @code{cv.addNr} if  the it is a register.
+@end deftypefn
+
+@deftypefn {Built-in Function} {uint32_t} __builtin_riscv_cv_alu_adduN (uint32_t, uint32_t, uint8_t)
+Generated assembler @code{cv.adduN} if the uint8_t operand is a constant and in the range 0 <= shft <= 31.
+Generated assembler @code{cv.adduNr} if  the it is a register.
+@end deftypefn
+
+@deftypefn {Built-in Function} {int32_t} __builtin_riscv_cv_alu_addRN (int32_t, int32_t, uint8_t)
+Generated assembler @code{cv.addRN} if the uint8_t operand is a constant and in the range 0 <= shft <= 31.
+Generated assembler @code{cv.addRNr} if  the it is a register.
+@end deftypefn
+
+@deftypefn {Built-in Function} {uint32_t} __builtin_riscv_cv_alu_adduRN (uint32_t, uint32_t, uint8_t)
+Generated assembler @code{cv.adduRN} if the uint8_t operand is a constant and in the range 0 <= shft <= 31.
+Generated assembler @code{cv.adduRNr} if  the it is a register.
+@end deftypefn
+
+@deftypefn {Built-in Function} {int32_t} __builtin_riscv_cv_alu_subN (int32_t, int32_t, uint8_t)
+Generated assembler @code{cv.subN} if the uint8_t operand is a constant and in the range 0 <= shft <= 31.
+Generated assembler @code{cv.subNr} if  the it is a register.
+@end deftypefn
+
+@deftypefn {Built-in Function} {uint32_t} __builtin_riscv_cv_alu_subuN (uint32_t, uint32_t, uint8_t)
+Generated assembler @code{cv.subuN} if the uint8_t operand is a constant and in the range 0 <= shft <= 31.
+Generated assembler @code{cv.subuNr} if  the it is a register.
+@end deftypefn
+
+@deftypefn {Built-in Function} {int32_t} __builtin_riscv_cv_alu_subRN (int32_t, int32_t, uint8_t)
+Generated assembler @code{cv.subRN} if the uint8_t operand is a constant and in the range 0 <= shft <= 31.
+Generated assembler @code{cv.subRNr} if  the it is a register.
+@end deftypefn
+
+@deftypefn {Built-in Function} {uint32_t} __builtin_riscv_cv_alu_subuRN (uint32_t, uint32_t, uint8_t)
+Generated assembler @code{cv.subuRN} if the uint8_t operand is a constant and in the range 0 <= shft <= 31.
+Generated assembler @code{cv.subuRNr} if  the it is a register.
+@end deftypefn
+
 @node RX Built-in Functions
 @subsection RX Built-in Functions
 GCC supports some of the RX instructions which cannot be expressed in
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index ba22a1a3a26..568a1647b51 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -2472,6 +2472,9 @@ Test system has an integer register width of 64 bits.
 @item cv_mac
 Test system has support for the CORE-V MAC extension.
 
+@item cv_alu
+Test system has support for the CORE-V ALU extension.
+
 @end table
 
 @subsubsection Other hardware attributes
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-compile.c b/gcc/testsuite/gcc.target/riscv/cv-alu-compile.c
new file mode 100644
index 00000000000..57289bb10eb
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-compile.c
@@ -0,0 +1,252 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+#include <stdint.h>
+
+extern int d;
+extern int e;
+extern int f;
+
+void
+foo0(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_addN (a, b, 0);
+  e = __builtin_riscv_cv_alu_addN (a, b, 7);
+  f = __builtin_riscv_cv_alu_addN (a, b, 31);
+}
+
+void
+foo1(int a, int b, int c)
+{
+  d = __builtin_riscv_cv_alu_addN (a, b, c);
+}
+
+void
+foo2(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_addRN (a, b, 0);
+  e = __builtin_riscv_cv_alu_addRN (a, b, 7);
+  f = __builtin_riscv_cv_alu_addRN (a, b, 31);
+}
+
+int
+foo3(int a, int b, int c)
+{
+  return __builtin_riscv_cv_alu_addRN (a, b, c);
+}
+
+void
+foo4(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_adduN (a, b, 0);
+  e = __builtin_riscv_cv_alu_adduN (a, b, 7);
+  f = __builtin_riscv_cv_alu_adduN (a, b, 31);
+}
+
+int
+foo5(int a, int b, int c)
+{
+  return __builtin_riscv_cv_alu_adduN (a, b, c);
+}
+
+void
+foo6(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_adduRN (a, b, 0);
+  e = __builtin_riscv_cv_alu_adduRN (a, b, 7);
+  f = __builtin_riscv_cv_alu_adduRN (a, b, 31);
+}
+
+int
+foo7(int a, int b, int c)
+{
+  return __builtin_riscv_cv_alu_adduRN (a, b, c);
+}
+
+int
+foo8(int a, int b)
+{
+  return __builtin_riscv_cv_alu_clip (a, 15);
+}
+
+int
+foo9(int a, int b)
+{
+  return __builtin_riscv_cv_alu_clip (a, 10);
+}
+
+int
+foo10(int a, int b)
+{
+  return __builtin_riscv_cv_alu_clipu (a, 15);
+}
+
+int
+foo11(int a, int b)
+{
+  return __builtin_riscv_cv_alu_clipu (a, 10);
+}
+
+int
+foo12(int a)
+{
+  return __builtin_riscv_cv_alu_extbs (a);
+}
+
+int
+foo13(int a)
+{
+  return __builtin_riscv_cv_alu_extbz (a);
+}
+
+int
+foo14(int b)
+{
+  return __builtin_riscv_cv_alu_exths (b);
+}
+
+int
+foo15(int a)
+{
+  return __builtin_riscv_cv_alu_exthz (a);
+}
+
+int
+foo16(int a, int b)
+{
+  return __builtin_riscv_cv_alu_max (a, b);
+}
+
+int
+foo17(int a, int b)
+{
+  return __builtin_riscv_cv_alu_maxu (a, b);
+}
+
+int
+foo18(int a, int b)
+{
+  return __builtin_riscv_cv_alu_min (a, b);
+}
+
+int
+foo19(int a, int b)
+{
+  return __builtin_riscv_cv_alu_minu (a, b);
+}
+
+int
+foo20(int a, int b)
+{
+  return __builtin_riscv_cv_alu_slet (a, b);
+}
+
+int
+foo21(unsigned int a, unsigned int b)
+{
+  return __builtin_riscv_cv_alu_sletu (a, b);
+}
+
+void
+foo22(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_subN (a, b, 0);
+  e = __builtin_riscv_cv_alu_subN (a, b, 7);
+  f = __builtin_riscv_cv_alu_subN (a, b, 31);
+}
+
+int
+foo23(int a, int b, int c)
+{
+  return __builtin_riscv_cv_alu_subN (a, b, c);
+}
+
+void
+foo24(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_subRN (a, b, 0);
+  e = __builtin_riscv_cv_alu_subRN (a, b, 7);
+  f = __builtin_riscv_cv_alu_subRN (a, b, 31);
+}
+
+int
+foo25(int a, int b, int c)
+{
+  return __builtin_riscv_cv_alu_subRN (a, b, c);
+}
+
+void
+foo26(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_subuN (a, b, 0);
+  e = __builtin_riscv_cv_alu_subuN (a, b, 7);
+  f = __builtin_riscv_cv_alu_subuN (a, b, 31);
+}
+
+int
+foo27(int a, int b, int c)
+{
+  return __builtin_riscv_cv_alu_subuN (a, b, c);
+}
+
+void
+foo28(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_subuRN (a, b, 0);
+  e = __builtin_riscv_cv_alu_subuRN (a, b, 7);
+  f = __builtin_riscv_cv_alu_subuRN (a, b, 31);
+}
+
+int
+foo29(int a, int b, int c)
+{
+  return __builtin_riscv_cv_alu_subuRN (a, b, c);
+}
+
+/* { dg-final { scan-assembler-times "cv\.addn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),0" 1 { target { no-opts "-O1" no-opts "-O2" no-opts "-O3" no-opts "-Og" no-opts "-Oz" no-opts "-Os" } } } } */
+/* { dg-final { scan-assembler-times "cv\.addn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),7" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.addn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),31" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.addnr\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.addrn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),0" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.addrn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),7" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.addrn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),31" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.addrnr\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.addun\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),0" 1 { target { no-opts "-O1" no-opts "-O2" no-opts "-O3" no-opts "-Og" no-opts "-Oz" no-opts "-Os" } } } } */
+/* { dg-final { scan-assembler-times "cv\.addun\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),7" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.addun\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),31" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.addunr\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.addurn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),0" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.addurn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),7" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.addurn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),31" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.addurnr\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.clip\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),5" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.clipr\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.clipu\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),5" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.clipur\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.extbs\t" 1 { target { no-opts "-O1" no-opts "-O2" no-opts "-O3" no-opts "-Og" no-opts "-Oz" no-opts "-Os" } } } } */
+/* { dg-final { scan-assembler-times "cv\\.extbz\t" 1 { target { no-opts "-O1" no-opts "-O2" no-opts "-O3" no-opts "-Og" no-opts "-Oz" no-opts "-Os" } } } } */
+/* { dg-final { scan-assembler-times "cv\\.exths\t" 1 { target { no-opts "-O1" no-opts "-O2" no-opts "-O3" no-opts "-Og" no-opts "-Oz" no-opts "-Os" } } } } */
+/* { dg-final { scan-assembler-times "cv\\.exthz\t" 1 { target { no-opts "-O1" no-opts "-O2" no-opts "-O3" no-opts "-Og" no-opts "-Oz" no-opts "-Os" } } } } */
+/* { dg-final { scan-assembler-times "cv\\.max\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.maxu\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.min\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.minu\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.sle\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.sleu\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.subn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),0" 1 { target { no-opts "-O1" no-opts "-O2" no-opts "-O3" no-opts "-Og" no-opts "-Oz" no-opts "-Os" } } } } */
+/* { dg-final { scan-assembler-times "cv\.subn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),7" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.subn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),31" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.subnr\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.subrn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),0" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.subrn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),7" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.subrn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),31" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.subrnr\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.subun\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),0" 1 { target { no-opts "-O1" no-opts "-O2" no-opts "-O3" no-opts "-Og" no-opts "-Oz" no-opts "-Os" } } } } */
+/* { dg-final { scan-assembler-times "cv\.subun\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),7" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.subun\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),31" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.subunr\t" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.suburn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),0" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.suburn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),7" 1 } } */
+/* { dg-final { scan-assembler-times "cv\.suburn\t\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),\(\?\:t\[0-6\]\|a\[0-7\]\|s\[1-11\]\),31" 1 } } */
+/* { dg-final { scan-assembler-times "cv\\.suburnr\t" 1 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addn.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addn.c
new file mode 100644
index 00000000000..aa8610f4c2c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addn.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_addN (a, b, 65536); /* { dg-warning "unsigned conversion from \'int\' to \'unsigned char\' changes value from \'65536\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addrn.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addrn.c
new file mode 100644
index 00000000000..12371b2c641
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addrn.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_addRN (a, b, 65536); /* { dg-warning "unsigned conversion from \'int\' to \'unsigned char\' changes value from \'65536\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addun.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addun.c
new file mode 100644
index 00000000000..3faad6c73c6
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addun.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_adduN (a, b, 65536); /* { dg-warning "unsigned conversion from \'int\' to \'unsigned char\' changes value from \'65536\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addurn.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addurn.c
new file mode 100644
index 00000000000..39dc575b68e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-addurn.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_adduRN (a, b, 65536); /* { dg-warning "unsigned conversion from \'int\' to \'unsigned char\' changes value from \'65536\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-clip.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-clip.c
new file mode 100644
index 00000000000..a5ee231c74d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-clip.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_clip (a, 4294967296); /* { dg-warning "overflow in conversion from \'long long int\' to \'int\' changes value from \'4294967296\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-clipu.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-clipu.c
new file mode 100644
index 00000000000..1ee11d2f600
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-clipu.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_clipu (a, 4294967296); /* { dg-warning "unsigned conversion from \'long long int\' to \'unsigned int\' changes value from \'4294967296\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-subn.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-subn.c
new file mode 100644
index 00000000000..91d6bd56672
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-subn.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_subN (a, b, 65536); /* { dg-warning "unsigned conversion from \'int\' to \'unsigned char\' changes value from \'65536\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-subrn.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-subrn.c
new file mode 100644
index 00000000000..3c7e4ae63d9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-subrn.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_subRN (a, b, 65536); /* { dg-warning "unsigned conversion from \'int\' to \'unsigned char\' changes value from \'65536\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-subun.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-subun.c
new file mode 100644
index 00000000000..46218ea4451
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-subun.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_subuN (a, b, 65536); /* { dg-warning "unsigned conversion from \'int\' to \'unsigned char\' changes value from \'65536\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-suburn.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-suburn.c
new file mode 100644
index 00000000000..f20378dd839
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile-suburn.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i_xcvalu -mabi=ilp32" } */
+
+extern int d;
+
+void
+foo(int a, int b)
+{
+  d = __builtin_riscv_cv_alu_subuRN (a, b, 65536); /* { dg-warning "unsigned conversion from \'int\' to \'unsigned char\' changes value from \'65536\' to \'0\'" } */
+}
diff --git a/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile.c b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile.c
new file mode 100644
index 00000000000..bbdb2d58c3f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/cv-alu-fail-compile.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target cv_alu } */
+/* { dg-options "-march=rv32i -mabi=ilp32" } */
+
+extern int d;
+
+int
+foo(int a, int b, int c)
+{
+    d += __builtin_riscv_cv_alu_slet (a, b); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_sletu (a, b);  /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_addN (a, b, 31);  /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_addRN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_adduN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_adduRN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_clip (a, 31); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_clipu (a, 35); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_extbs (a); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_extbz (a); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_exths (a); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_exthz (a); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_min (a, b); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_minu (a, b); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_max (a, b); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_maxu (a, b); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_subN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_subRN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_subuN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
+    d += __builtin_riscv_cv_alu_subuRN (a, b, 31); /* { dg-warning "implicit declaration of function" } */
+
+    return d;
+}
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index a412e0dad2d..0648d79e420 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -12743,6 +12743,19 @@ proc check_effective_target_cv_mac { } {
     } "-march=rv32i_xcvmac" ]
 }
 
+# Return 1 if the CORE-V ALU extension is available.
+proc check_effective_target_cv_alu { } {
+    if { !([istarget riscv*-*-*]) } {
+         return 0
+     }
+    return [check_no_compiler_messages cv_alu object {
+        void foo (void)
+        {
+          asm ("cv.addn t0, t1, t2, 0");
+        }
+    } "-march=rv32i_xcvalu" ]
+}
+
 # Appends necessary Python flags to extra-tool-flags if Python.h is supported.
 # Otherwise, modifies dg-do-what.
 proc dg-require-python-h { args } {

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2023-10-12 22:00 [gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] [PATCH v4 2/2] RISC-V: Add support for XCValu extension in CV32E40P Jeff Law

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