https://gcc.gnu.org/g:8cdf8b6b17997a628fc8e7248cd6a25e89424f72
commit r17-585-g8cdf8b6b17997a628fc8e7248cd6a25e89424f72 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 5ed7ea4599cf..cd95a2862985 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -30311,7 +30311,7 @@ [(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); }
