https://gcc.gnu.org/g:ab56f493671644b14b8c6b777aeee9bfc3367eaf
commit r14-12614-gab56f493671644b14b8c6b777aeee9bfc3367eaf Author: Andi Kleen <[email protected]> Date: Mon May 18 08:40:53 2026 -0700 Fix masm ptwrite again The earlier 64bit ptwrite as 32bit fix broke Intel syntax output. Handle that too by using an alternative. In Intel syntax the instruction data type is defined by the operands. I'll commit it as obvious in a day or so for 15/16/trunk, unless there are objections. PR target/125351 gcc/ChangeLog: * config/i386/i386.md: Use alternative to handle masm ptwrite syntax. gcc/testsuite/ChangeLog: * gcc.target/i386/pr125351.c: New test. Diff: --- gcc/config/i386/i386.md | 2 +- gcc/testsuite/gcc.target/i386/pr125351.c | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index f33450c29d42..2af48a3ff7a8 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -27624,7 +27624,7 @@ [(unspec_volatile [(match_operand:SWI48 0 "nonimmediate_operand" "rm")] UNSPECV_PTWRITE)] "TARGET_PTWRITE" - "ptwrite<imodesuffix>\t%0" + "ptwrite{<imodesuffix>|}\t%0" [(set_attr "type" "other") (set_attr "prefix_0f" "1") (set_attr "prefix_rep" "1")]) diff --git a/gcc/testsuite/gcc.target/i386/pr125351.c b/gcc/testsuite/gcc.target/i386/pr125351.c new file mode 100644 index 000000000000..f21adcae44a3 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr125351.c @@ -0,0 +1,3 @@ +/* { dg-do compile } */ +/* { dg-options "-mptwrite -masm=intel" } */ +void foo() { __builtin_ia32_ptwrite32(0); }
