In mips.cc(mips_reorg_process_insns), there is this claim:
Also delete cache barriers if the last instruction
was an annulled branch. INSN will not be speculatively
executed.
And with -O1 on mips64, we can generate binary code like this,
which fails this test.
gcc/testsuite
* gcc.target/mips/r10-cache-barrier-13.c: Add -mno-branch-likely
option.
---
gcc/testsuite/gcc.target/mips/r10k-cache-barrier-13.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/testsuite/gcc.target/mips/r10k-cache-barrier-13.c
b/gcc/testsuite/gcc.target/mips/r10k-cache-barrier-13.c
index ee9c84b5988..ac005fb08b3 100644
--- a/gcc/testsuite/gcc.target/mips/r10k-cache-barrier-13.c
+++ b/gcc/testsuite/gcc.target/mips/r10k-cache-barrier-13.c
@@ -1,4 +1,4 @@
-/* { dg-options "-mr10k-cache-barrier=store" } */
+/* { dg-options "-mr10k-cache-barrier=store -mno-branch-likely" } */
/* Test that indirect calls are protected. */
--
2.39.3 (Apple Git-146)
