For the same reasons that affect alpha and other targets,
gcc.dg/tree-ssa/ssa-dom-cse-2.c fails to be optimized to the expected
return statement: the array initializer is vectorized into pairs, and
DOM cannot see through that.
Add riscv*-*-* to the list of affected lp64 platforms. riscv32 is
not affected.
Tested on x86_64-linux-gnu native, and gcc-14 target riscv{64,32}-elf.
Ok to install?
for gcc/testsuite/ChangeLog
* gcc.dg/tree-ssa/ssa-dom-cse-2.c: XFAIL on riscv lp64.
---
gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c
b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c
index 5c89e3f869808..a879d3059714a 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c
@@ -27,4 +27,4 @@ foo ()
but the loop reads only one element at a time, and DOM cannot resolve these.
The same happens on powerpc depending on the SIMD support available. */
-/* { dg-final { scan-tree-dump "return 28;" "optimized" { xfail { { alpha*-*-*
hppa*64*-*-* nvptx*-*-* mmix-knuth-mmixware } || { { { lp64 && { powerpc*-*-*
sparc*-*-* } } || aarch64_sve } || { arm*-*-* && { ! arm_neon } } } } } } } */
+/* { dg-final { scan-tree-dump "return 28;" "optimized" { xfail { { alpha*-*-*
hppa*64*-*-* nvptx*-*-* mmix-knuth-mmixware } || { { { lp64 && { powerpc*-*-*
sparc*-*-* riscv*-*-* } } || aarch64_sve } || { arm*-*-* && { ! arm_neon } } }
} } } } */
--
Alexandre Oliva, happy hacker https://blog.lx.oliva.nom.br/
Free Software Activist FSFLA co-founder GNU Toolchain Engineer
More tolerance and less prejudice are key for inclusion and diversity.
Excluding neuro-others for not behaving ""normal"" is *not* inclusive!
