diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/i386.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr95791.c | 10 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 3b776c0..37aaa49 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -13846,7 +13846,9 @@ ix86_dirflag_mode_needed (rtx_insn *insn) static bool ix86_check_avx_upper_register (const_rtx exp) { - return SSE_REG_P (exp) && GET_MODE_BITSIZE (GET_MODE (exp)) > 128; + return (SSE_REG_P (exp) + && !EXT_REX_SSE_REG_P (exp) + && GET_MODE_BITSIZE (GET_MODE (exp)) > 128); } /* Return needed mode for entity in optimize_mode_switching pass. */ diff --git a/gcc/testsuite/gcc.target/i386/pr95791.c b/gcc/testsuite/gcc.target/i386/pr95791.c new file mode 100644 index 0000000..26a96d4 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr95791.c @@ -0,0 +1,10 @@ +/* { dg-do compile { target { ! ia32 } } } */ +/* { dg-options "-O2 -mavx512f -mvzeroupper" } */ + +void +f(void) +{ + __asm__ __volatile__("" ::: "zmm16"); +} + +/* { dg-final { scan-assembler-not "vzeroupper" } } */ |