[gcc(refs/vendors/riscv/heads/gcc-14-with-riscv-opts)] RISC-V: Test cbo.zero expansion for rv32

[Jeff Law via Gcc-cvs]

https://gcc.gnu.org/g:d8f7ba2edaecdaa515d0dfca65934d2a90c63db6

commit d8f7ba2edaecdaa515d0dfca65934d2a90c63db6
Author: Christoph Müllner <christoph.muell...@vrull.eu>
Date:   Wed May 15 01:34:54 2024 +0200

    RISC-V: Test cbo.zero expansion for rv32
    
    We had an issue when expanding via cmo-zero for RV32.
    This was fixed upstream, but we don't have a RV32 test.
    Therefore, this patch introduces such a test.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/riscv/cmo-zicboz-zic64-1.c: Fix for rv32.
    
    Signed-off-by: Christoph Müllner <christoph.muell...@vrull.eu>
    (cherry picked from commit 5609d77e683944439fae38323ecabc44a1eb4671)

Diff:
---
 .../gcc.target/riscv/cmo-zicboz-zic64-1.c          | 37 +++++++---------------
 1 file changed, 11 insertions(+), 26 deletions(-)

diff --git a/gcc/testsuite/gcc.target/riscv/cmo-zicboz-zic64-1.c 
b/gcc/testsuite/gcc.target/riscv/cmo-zicboz-zic64-1.c
index 6d4535287d0..9192b391b11 100644
--- a/gcc/testsuite/gcc.target/riscv/cmo-zicboz-zic64-1.c
+++ b/gcc/testsuite/gcc.target/riscv/cmo-zicboz-zic64-1.c
@@ -1,24 +1,9 @@
 /* { dg-do compile } */
-/* { dg-options "-march=rv64gc_zic64b_zicboz -mabi=lp64d" } */
+/* { dg-options "-march=rv32gc_zic64b_zicboz" { target { rv32 } } } */
+/* { dg-options "-march=rv64gc_zic64b_zicboz" { target { rv64 } } } */
 /* { dg-skip-if "" { *-*-* } {"-O0" "-Os" "-Og" "-Oz" "-flto" } } */
-/* { dg-final { check-function-bodies "**" "" } } */
-/* { dg-allow-blank-lines-in-output 1 } */
 
-/*
-**clear_buf_123:
-**    ...
-**    cbo\.zero\t0\(a[0-9]+\)
-**    sd\tzero,64\(a[0-9]+\)
-**    sd\tzero,72\(a[0-9]+\)
-**    sd\tzero,80\(a[0-9]+\)
-**    sd\tzero,88\(a[0-9]+\)
-**    sd\tzero,96\(a[0-9]+\)
-**    sd\tzero,104\(a[0-9]+\)
-**    sd\tzero,112\(a[0-9]+\)
-**    sh\tzero,120\(a[0-9]+\)
-**    sb\tzero,122\(a[0-9]+\)
-**    ...
-*/
+// 1x cbo.zero, 7x sd (rv64) or 14x sw (rv32), 1x sh, 1x sb
 int
 clear_buf_123 (void *p)
 {
@@ -26,17 +11,17 @@ clear_buf_123 (void *p)
   __builtin_memset (p, 0, 123);
 }
 
-/*
-**clear_buf_128:
-**    ...
-**    cbo\.zero\t0\(a[0-9]+\)
-**    addi\ta[0-9]+,a[0-9]+,64
-**    cbo\.zero\t0\(a[0-9]+\)
-**    ...
-*/
+// 2x cbo.zero, 1x addi 64
 int
 clear_buf_128 (void *p)
 {
   p = __builtin_assume_aligned(p, 64);
   __builtin_memset (p, 0, 128);
 }
+
+/* { dg-final { scan-assembler-times "cbo\.zero\t" 3 } } */
+/* { dg-final { scan-assembler-times "addi\ta\[0-9\]+,a\[0-9\]+,64" 1 } } */
+/* { dg-final { scan-assembler-times "sd\t" 7 { target { rv64 } } } } */
+/* { dg-final { scan-assembler-times "sw\t" 14 { target { rv32 } } } } */
+/* { dg-final { scan-assembler-times "sh\t" 1 } } */
+/* { dg-final { scan-assembler-times "sb\t" 1 } } */