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Delete dead code in ix86_expand_sse_comi.

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d->flag is always 0 for builtins located in
BDESC_FIRST (comi,COMI,...)
...
BDESC_END (COMI, PCMPESTR)

gcc/ChangeLog:
	PR target/98612
	* config/i386/i386-builtins.h (BUILTIN_DESC_SWAP_OPERANDS):
	Deleted.
	* config/i386/i386-expand.c (ix86_expand_sse_comi): Delete
	dead code.
This commit is contained in:
liuhongt 2021-01-11 14:47:49 +08:00
parent 640296c367
commit 240f0a490d
2 changed files with 0 additions and 9 deletions
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4
gcc/config/i386/i386-builtins.h
View File

@ -236,10 +236,6 @@ struct builtin_isa {
/* Bits for builtin_description.flag. */
/* Set when we don't support the comparison natively, and should
swap_comparison in order to support it. */
#define BUILTIN_DESC_SWAP_OPERANDS 1
struct builtin_description
{
const HOST_WIDE_INT mask;

5
gcc/config/i386/i386-expand.c
View File

@ -8634,11 +8634,6 @@ ix86_expand_sse_comi (const struct builtin_description *d, tree exp,
if (VECTOR_MODE_P (mode1))
op1 = safe_vector_operand (op1, mode1);
/* Swap operands if we have a comparison that isn't available in
hardware. */
if (d->flag & BUILTIN_DESC_SWAP_OPERANDS)
std::swap (op0, op1);
target = gen_reg_rtx (SImode);
emit_move_insn (target, const0_rtx);
target = gen_rtx_SUBREG (QImode, target, 0);