https://gcc.gnu.org/g:aefa9e6f2d094b50fc12c6ff2df080a534b4a594
commit r15-10778-gaefa9e6f2d094b50fc12c6ff2df080a534b4a594 Author: Alfie Richards <[email protected]> Date: Thu Jan 15 14:29:51 2026 +0000 aarch64: Fix issue with __pld builtin at -O0 [PR 123548] This fixes the issues with __pld by changing the arguments in arm_acle.h to be const which seems to stop the creation of SSA nodes. PR target/123548 gcc/ChangeLog: * config/aarch64/arm_acle.h (__plix): Change arguments to be const. (__pldx): Change arguments to be const. gcc/testsuite/ChangeLog: * gcc.target/aarch64/pr123548.c: New test. Diff: --- gcc/config/aarch64/arm_acle.h | 8 ++++---- gcc/testsuite/gcc.target/aarch64/pr123548.c | 18 ++++++++++++++++++ 2 files changed, 22 insertions(+), 4 deletions(-) diff --git a/gcc/config/aarch64/arm_acle.h b/gcc/config/aarch64/arm_acle.h index d9e2401ea9f6..822b5bd6da38 100644 --- a/gcc/config/aarch64/arm_acle.h +++ b/gcc/config/aarch64/arm_acle.h @@ -94,16 +94,16 @@ __pli (void const volatile *__addr) __extension__ extern __inline void __attribute__ ((__always_inline__, __gnu_inline__, __artificial__)) -__plix (unsigned int __cache, unsigned int __rettn, +__plix (const unsigned int __cache, const unsigned int __rettn, void const volatile *__addr) { return __builtin_aarch64_plix (__cache, __rettn, __addr); } __extension__ extern __inline void -__attribute__ ((__always_inline__, __gnu_inline__, __artificial__)) -__pldx (unsigned int __access, unsigned int __cache, unsigned int __rettn, - void const volatile *__addr) + __attribute__ ((__always_inline__, __gnu_inline__, __artificial__)) + __pldx (const unsigned int __access, const unsigned int __cache, + const unsigned int __rettn, void const volatile *__addr) { return __builtin_aarch64_pldx (__access, __cache, __rettn, __addr); } diff --git a/gcc/testsuite/gcc.target/aarch64/pr123548.c b/gcc/testsuite/gcc.target/aarch64/pr123548.c new file mode 100644 index 000000000000..c3e752197ce9 --- /dev/null +++ b/gcc/testsuite/gcc.target/aarch64/pr123548.c @@ -0,0 +1,18 @@ +/* { dg-do compile } */ +/* { dg-options "-O0" } */ +/* { dg-final { check-function-bodies "**" "" "" } } */ + +#include <arm_acle.h> + +void +test (void *a) +{ + __pldx (1, 1, 1, a); +} +/* +** test: +**... +** prfm\tPSTL2STRM, \[x[0-9]+\] +**... +** ret +*/
