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* [gcc(refs/vendors/ix86/heads/apx)] [APX EGPR] Handle legacy insn that only support GPR16 (1/5)
@ 2023-09-26 5:02 Hongyu Wang
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From: Hongyu Wang @ 2023-09-26 5:02 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:5c31d543078a6c55e3a3b6331485ab3112a0202b
commit 5c31d543078a6c55e3a3b6331485ab3112a0202b
Author: Kong Lingling <lingling.kong@intel.com>
Date: Fri Mar 24 09:54:46 2023 +0800
[APX EGPR] Handle legacy insn that only support GPR16 (1/5)
These legacy insn in opcode map0/1 only support GPR16,
and do not have vex/evex counterpart, directly adjust constraints and
add gpr32 attr to patterns.
insn list:
1. xsave/xsave64, xrstor/xrstor64
2. xsaves/xsaves64, xrstors/xrstors64
3. xsavec/xsavec64
4. xsaveopt/xsaveopt64
5. fxsave64/fxrstor64
gcc/ChangeLog:
* config/i386/i386.md (<xsave>): Set attr gpr32 0 and constraint
jm.
(<xsave>_rex64): Likewise.
(<xrstor>_rex64): Likewise.
(<xrstor>64): Likewise.
(fxsave64): Likewise.
(fxstore64): Likewise.
gcc/testsuite/ChangeLog:
* lib/target-supports.exp: Add apxf check.
* gcc.target/i386/apx-legacy-insn-check-norex2.c: New test.
* gcc.target/i386/apx-legacy-insn-check-norex2-asm.c: New assembler test.
Co-authored-by: Hongyu Wang <hongyu.wang@intel.com>
Co-authored-by: Hongtao Liu <hongtao.liu@intel.com>
Diff:
---
gcc/config/i386/i386.md | 18 ++++++++-----
.../i386/apx-legacy-insn-check-norex2-asm.c | 5 ++++
.../gcc.target/i386/apx-legacy-insn-check-norex2.c | 30 ++++++++++++++++++++++
gcc/testsuite/lib/target-supports.exp | 10 ++++++++
4 files changed, 57 insertions(+), 6 deletions(-)
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index b9eaea78f00..6cf86b798a8 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -25626,11 +25626,12 @@
(symbol_ref "ix86_attr_length_address_default (insn) + 3"))])
(define_insn "fxsave64"
- [(set (match_operand:BLK 0 "memory_operand" "=m")
+ [(set (match_operand:BLK 0 "memory_operand" "=jm")
(unspec_volatile:BLK [(const_int 0)] UNSPECV_FXSAVE64))]
"TARGET_64BIT && TARGET_FXSR"
"fxsave64\t%0"
[(set_attr "type" "other")
+ (set_attr "gpr32" "0")
(set_attr "memory" "store")
(set (attr "length")
(symbol_ref "ix86_attr_length_address_default (insn) + 4"))])
@@ -25646,11 +25647,12 @@
(symbol_ref "ix86_attr_length_address_default (insn) + 3"))])
(define_insn "fxrstor64"
- [(unspec_volatile [(match_operand:BLK 0 "memory_operand" "m")]
+ [(unspec_volatile [(match_operand:BLK 0 "memory_operand" "jm")]
UNSPECV_FXRSTOR64)]
"TARGET_64BIT && TARGET_FXSR"
"fxrstor64\t%0"
[(set_attr "type" "other")
+ (set_attr "gpr32" "0")
(set_attr "memory" "load")
(set (attr "length")
(symbol_ref "ix86_attr_length_address_default (insn) + 4"))])
@@ -25704,7 +25706,7 @@
(symbol_ref "ix86_attr_length_address_default (insn) + 3"))])
(define_insn "<xsave>_rex64"
- [(set (match_operand:BLK 0 "memory_operand" "=m")
+ [(set (match_operand:BLK 0 "memory_operand" "=jm")
(unspec_volatile:BLK
[(match_operand:SI 1 "register_operand" "a")
(match_operand:SI 2 "register_operand" "d")]
@@ -25713,11 +25715,12 @@
"<xsave>\t%0"
[(set_attr "type" "other")
(set_attr "memory" "store")
+ (set_attr "gpr32" "0")
(set (attr "length")
(symbol_ref "ix86_attr_length_address_default (insn) + 3"))])
(define_insn "<xsave>"
- [(set (match_operand:BLK 0 "memory_operand" "=m")
+ [(set (match_operand:BLK 0 "memory_operand" "=jm")
(unspec_volatile:BLK
[(match_operand:SI 1 "register_operand" "a")
(match_operand:SI 2 "register_operand" "d")]
@@ -25726,6 +25729,7 @@
"<xsave>\t%0"
[(set_attr "type" "other")
(set_attr "memory" "store")
+ (set_attr "gpr32" "0")
(set (attr "length")
(symbol_ref "ix86_attr_length_address_default (insn) + 4"))])
@@ -25743,7 +25747,7 @@
(define_insn "<xrstor>_rex64"
[(unspec_volatile:BLK
- [(match_operand:BLK 0 "memory_operand" "m")
+ [(match_operand:BLK 0 "memory_operand" "jm")
(match_operand:SI 1 "register_operand" "a")
(match_operand:SI 2 "register_operand" "d")]
ANY_XRSTOR)]
@@ -25751,12 +25755,13 @@
"<xrstor>\t%0"
[(set_attr "type" "other")
(set_attr "memory" "load")
+ (set_attr "gpr32" "0")
(set (attr "length")
(symbol_ref "ix86_attr_length_address_default (insn) + 3"))])
(define_insn "<xrstor>64"
[(unspec_volatile:BLK
- [(match_operand:BLK 0 "memory_operand" "m")
+ [(match_operand:BLK 0 "memory_operand" "jm")
(match_operand:SI 1 "register_operand" "a")
(match_operand:SI 2 "register_operand" "d")]
ANY_XRSTOR64)]
@@ -25764,6 +25769,7 @@
"<xrstor>64\t%0"
[(set_attr "type" "other")
(set_attr "memory" "load")
+ (set_attr "gpr32" "0")
(set (attr "length")
(symbol_ref "ix86_attr_length_address_default (insn) + 4"))])
diff --git a/gcc/testsuite/gcc.target/i386/apx-legacy-insn-check-norex2-asm.c b/gcc/testsuite/gcc.target/i386/apx-legacy-insn-check-norex2-asm.c
new file mode 100644
index 00000000000..7ecc861435f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/apx-legacy-insn-check-norex2-asm.c
@@ -0,0 +1,5 @@
+/* { dg-do assemble { target apxf } } */
+/* { dg-options "-O1 -mapxf -m64 -DDTYPE32" } */
+
+#include "apx-legacy-insn-check-norex2.c"
+
diff --git a/gcc/testsuite/gcc.target/i386/apx-legacy-insn-check-norex2.c b/gcc/testsuite/gcc.target/i386/apx-legacy-insn-check-norex2.c
new file mode 100644
index 00000000000..1e5450dfb73
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/apx-legacy-insn-check-norex2.c
@@ -0,0 +1,30 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -mapxf -m64 -DDTYPE32" } */
+
+#include <immintrin.h>
+
+typedef unsigned int u32;
+typedef unsigned long long u64;
+
+#ifndef DTYPE32
+#define DTYPE32
+#endif
+
+#ifdef DTYPE32
+typedef u32 DTYPE;
+#endif
+
+__attribute__((target("xsave,fxsr")))
+void legacy_test ()
+{
+ register DTYPE* val __asm__("r16");
+ _xsave64 (val, 1);
+ _xrstor64 (val, 1);
+ _fxsave64 (val);
+ _fxrstor64 (val);
+}
+
+/* { dg-final { scan-assembler-not "xsave64\[ \\t]+\\\.\\\*r\(1\[6-9\]\|2\[0-9\]|30\|31\)" } } */
+/* { dg-final { scan-assembler-not "xrstor64\[ \\t]+\\\.\\\*r\(1\[6-9\]\|2\[0-9\]|30\|31\)" } } */
+/* { dg-final { scan-assembler-not "fxsave64\[ \\t]+\\\.\\\*r\(1\[6-9\]\|2\[0-9\]|30\|31\)" } } */
+/* { dg-final { scan-assembler-not "fxrstor64\[ \\t]+\\\.\\\*r\(1\[6-9\]\|2\[0-9\]|30\|31\)" } } */
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 2de41cef2f6..2907de8bd7c 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -10001,6 +10001,16 @@ proc check_effective_target_sm4 { } {
} "-msm4" ]
}
+proc check_effective_target_apxf { } {
+ return [check_no_compiler_messages apxf object {
+ void
+ foo ()
+ {
+ __asm__ volatile ("add\t%%r16, %%r31" ::);
+ }
+ } "-mapxf" ]
+}
+
# Return 1 if sse instructions can be compiled.
proc check_effective_target_sse { } {
return [check_no_compiler_messages sse object {
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