diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/i386-expand.cc | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/sse4-pr112681.c | 11 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc index fe56d2f..4bd7d4f 100644 --- a/gcc/config/i386/i386-expand.cc +++ b/gcc/config/i386/i386-expand.cc @@ -2453,7 +2453,8 @@ ix86_expand_branch (enum rtx_code code, rtx op0, rtx op1, rtx label) /* Generate XOR since we can't check that one operand is zero vector. */ tmp = gen_reg_rtx (mode); - emit_insn (gen_rtx_SET (tmp, gen_rtx_XOR (mode, op0, op1))); + rtx ops[3] = { tmp, op0, op1 }; + ix86_expand_vector_logical_operator (XOR, mode, ops); tmp = gen_lowpart (p_mode, tmp); emit_insn (gen_rtx_SET (gen_rtx_REG (CCZmode, FLAGS_REG), gen_rtx_UNSPEC (CCZmode, diff --git a/gcc/testsuite/gcc.target/i386/sse4-pr112681.c b/gcc/testsuite/gcc.target/i386/sse4-pr112681.c new file mode 100644 index 0000000..6c91087 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/sse4-pr112681.c @@ -0,0 +1,11 @@ +/* PR target/112681 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -msse4 -mno-avx" } */ + +struct S { void *c; char d[16]; } a, b; + +int +foo (void) +{ + return __builtin_memcmp (a.d, b.d, sizeof (a.d)) != 0; +} |