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* [gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] RISC-V/testsuite: Add branchless cases for T-Head non-equality cond moves
@ 2023-11-22 5:10 Jeff Law
0 siblings, 0 replies; only message in thread
From: Jeff Law @ 2023-11-22 5:10 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:7ee4a14a3d96dc9aada2165502ca1b14ad3081b5
commit 7ee4a14a3d96dc9aada2165502ca1b14ad3081b5
Author: Maciej W. Rozycki <macro@embecosm.com>
Date: Wed Nov 22 01:18:27 2023 +0000
RISC-V/testsuite: Add branchless cases for T-Head non-equality cond moves
Verify, for T-Head targets and the non-equality integer conditional-move
operations, that if-conversion triggers via `noce_try_cmove' at
`-mbranch-cost=2' setting, which makes branchless code sequences
produced by if-conversion cheaper than their original branched
equivalents, and that extraneous instructions such as SNEZ, etc. are not
present in output.
gcc/testsuite/
* gcc.target/riscv/movdige-thead.c: New test.
* gcc.target/riscv/movdigeu-thead.c: New test.
* gcc.target/riscv/movdigt-thead.c: New test.
* gcc.target/riscv/movdigtu-thead.c: New test.
* gcc.target/riscv/movdile-thead.c: New test.
* gcc.target/riscv/movdileu-thead.c: New test.
* gcc.target/riscv/movdilt-thead.c: New test.
* gcc.target/riscv/movdiltu-thead.c: New test.
* gcc.target/riscv/movsige-thead.c: New test.
* gcc.target/riscv/movsigeu-thead.c: New test.
* gcc.target/riscv/movsigt-thead.c: New test.
* gcc.target/riscv/movsigtu-thead.c: New test.
* gcc.target/riscv/movsile-thead.c: New test.
* gcc.target/riscv/movsileu-thead.c: New test.
* gcc.target/riscv/movsilt-thead.c: New test.
* gcc.target/riscv/movsiltu-thead.c: New test.
(cherry picked from commit 6e3237321454a48f37c43e9b71f7c1ffd1879b96)
Diff:
---
gcc/testsuite/gcc.target/riscv/movdige-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movdigeu-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movdigt-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movdigtu-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movdile-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movdileu-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movdilt-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movdiltu-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movsige-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movsigeu-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movsigt-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movsigtu-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movsile-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movsileu-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movsilt-thead.c | 26 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/riscv/movsiltu-thead.c | 26 +++++++++++++++++++++++++
16 files changed, 416 insertions(+)
diff --git a/gcc/testsuite/gcc.target/riscv/movdige-thead.c b/gcc/testsuite/gcc.target/riscv/movdige-thead.c
new file mode 100644
index 00000000000..5ade7114e3a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movdige-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdige (int_t w, int_t x, int_t y, int_t z)
+{
+ return w >= x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ slt a0,a0,a1
+ th.mvnez a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgt|slt)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bge|bgt|ble|blt)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movdigeu-thead.c b/gcc/testsuite/gcc.target/riscv/movdigeu-thead.c
new file mode 100644
index 00000000000..6fa48f15f3d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movdigeu-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef unsigned int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdigeu (int_t w, int_t x, int_t y, int_t z)
+{
+ return w >= x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sltu a0,a0,a1
+ th.mvnez a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgtu|sltu)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bgeu|bgtu|bleu|bltu)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movdigt-thead.c b/gcc/testsuite/gcc.target/riscv/movdigt-thead.c
new file mode 100644
index 00000000000..d687dd2277e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movdigt-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdigt (int_t w, int_t x, int_t y, int_t z)
+{
+ return w > x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sgt a0,a0,a1
+ th.mveqz a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgt|slt)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bge|bgt|ble|blt)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movdigtu-thead.c b/gcc/testsuite/gcc.target/riscv/movdigtu-thead.c
new file mode 100644
index 00000000000..3fb471a0741
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movdigtu-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef unsigned int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdigtu (int_t w, int_t x, int_t y, int_t z)
+{
+ return w > x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sgtu a0,a0,a1
+ th.mveqz a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgtu|sltu)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bgeu|bgtu|bleu|bltu)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movdile-thead.c b/gcc/testsuite/gcc.target/riscv/movdile-thead.c
new file mode 100644
index 00000000000..6ba8d8d582c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movdile-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdile (int_t w, int_t x, int_t y, int_t z)
+{
+ return w <= x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sgt a0,a0,a1
+ th.mvnez a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgt|slt)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bge|bgt|ble|blt)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movdileu-thead.c b/gcc/testsuite/gcc.target/riscv/movdileu-thead.c
new file mode 100644
index 00000000000..3661165003f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movdileu-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef unsigned int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdileu (int_t w, int_t x, int_t y, int_t z)
+{
+ return w <= x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sgtu a0,a0,a1
+ th.mvnez a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgtu|sltu)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bgeu|bgtu|bleu|bltu)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movdilt-thead.c b/gcc/testsuite/gcc.target/riscv/movdilt-thead.c
new file mode 100644
index 00000000000..7ae635767de
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movdilt-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdilt (int_t w, int_t x, int_t y, int_t z)
+{
+ return w < x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ slt a0,a0,a1
+ th.mveqz a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgt|slt)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bge|bgt|ble|blt)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movdiltu-thead.c b/gcc/testsuite/gcc.target/riscv/movdiltu-thead.c
new file mode 100644
index 00000000000..345c88beec4
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movdiltu-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef unsigned int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdiltu (int_t w, int_t x, int_t y, int_t z)
+{
+ return w < x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sltu a0,a0,a1
+ th.mveqz a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgtu|sltu)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bgeu|bgtu|bleu|bltu)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movsige-thead.c b/gcc/testsuite/gcc.target/riscv/movsige-thead.c
new file mode 100644
index 00000000000..87ce0dfb954
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movsige-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsige (int_t w, int_t x, int_t y, int_t z)
+{
+ return w >= x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ slt a0,a0,a1
+ th.mvnez a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgt|slt)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bge|bgt|ble|blt)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movsigeu-thead.c b/gcc/testsuite/gcc.target/riscv/movsigeu-thead.c
new file mode 100644
index 00000000000..d2f51ad4e9c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movsigeu-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef unsigned int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsigeu (int_t w, int_t x, int_t y, int_t z)
+{
+ return w >= x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sltu a0,a0,a1
+ th.mvnez a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgtu|sltu)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bgeu|bgtu|bleu|bltu)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movsigt-thead.c b/gcc/testsuite/gcc.target/riscv/movsigt-thead.c
new file mode 100644
index 00000000000..e99b79fb48d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movsigt-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsigt (int_t w, int_t x, int_t y, int_t z)
+{
+ return w > x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sgt a0,a0,a1
+ th.mveqz a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgt|slt)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bge|bgt|ble|blt)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movsigtu-thead.c b/gcc/testsuite/gcc.target/riscv/movsigtu-thead.c
new file mode 100644
index 00000000000..33770e64a60
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movsigtu-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef unsigned int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsigtu (int_t w, int_t x, int_t y, int_t z)
+{
+ return w > x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sgtu a0,a0,a1
+ th.mveqz a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgtu|sltu)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bgeu|bgtu|bleu|bltu)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movsile-thead.c b/gcc/testsuite/gcc.target/riscv/movsile-thead.c
new file mode 100644
index 00000000000..6e724a5ff15
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movsile-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsile (int_t w, int_t x, int_t y, int_t z)
+{
+ return w <= x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sgt a0,a0,a1
+ th.mvnez a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgt|slt)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bge|bgt|ble|blt)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movsileu-thead.c b/gcc/testsuite/gcc.target/riscv/movsileu-thead.c
new file mode 100644
index 00000000000..fb727536cfc
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movsileu-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef unsigned int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsileu (int_t w, int_t x, int_t y, int_t z)
+{
+ return w <= x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sgtu a0,a0,a1
+ th.mvnez a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgtu|sltu)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bgeu|bgtu|bleu|bltu)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movsilt-thead.c b/gcc/testsuite/gcc.target/riscv/movsilt-thead.c
new file mode 100644
index 00000000000..ca957b96888
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movsilt-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsilt (int_t w, int_t x, int_t y, int_t z)
+{
+ return w < x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ slt a0,a0,a1
+ th.mveqz a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgt|slt)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bge|bgt|ble|blt)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/movsiltu-thead.c b/gcc/testsuite/gcc.target/riscv/movsiltu-thead.c
new file mode 100644
index 00000000000..680f673675b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/movsiltu-thead.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_xtheadcondmov -mtune=thead-c906 -mbranch-cost=2 -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef unsigned int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsiltu (int_t w, int_t x, int_t y, int_t z)
+{
+ return w < x ? y : z;
+}
+
+/* Expect branchless assembly like:
+
+ sltu a0,a0,a1
+ th.mveqz a2,a3,a0
+ mv a0,a2
+ */
+
+/* { dg-final { scan-rtl-dump-times "Conversion succeeded on pass 1\\." 1 "ce1" } } */
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove" 1 "ce1" } } */
+/* { dg-final { scan-assembler-times "\\s(?:sgtu|sltu)\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:th\\.mveqz|th\\.mvnez)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:bgeu|bgtu|bleu|bltu)\\s" } } */
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2023-11-22 5:10 [gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] RISC-V/testsuite: Add branchless cases for T-Head non-equality cond moves Jeff Law
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