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i386-features.c (general_scalar_chain::convert_insn): Revert 2019-08-14 change. 

* config/i386/i386-features.c (general_scalar_chain::convert_insn)
	<case COMPARE>: Revert 2019-08-14 change.
	(convertible_comparison_p): Revert 2019-08-14 change.  Return false
	for (TARGET_64BIT || mode != DImode).

From-SVN: r274526
This commit is contained in:
Uros Bizjak 2019-08-15 12:55:52 +02:00 committed by Uros Bizjak
parent c7cf3a9bb0
commit c839844a42
2 changed files with 23 additions and 12 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2019-08-15 Uroš Bizjak <ubizjak@gmail.com>
* config/i386/i386-features.c (general_scalar_chain::convert_insn)
<case COMPARE>: Revert 2019-08-14 change.
(convertible_comparison_p): Revert 2019-08-14 change. Return false
for (TARGET_64BIT || mode != DImode).
2019-08-15 Aldy Hernandez <aldyh@redhat.com>
* tree-vrp.c (value_range_base::set): Merge in code from
@ -272,7 +279,7 @@
* config/i386/i386-expand.c (ix86_expand_vector_init_one_nonzero)
<case E_V8QImode>: Use vector_set path for
TARGET_MMX_WITH_SSE && TARGET_SSE4_1.
(ix86_expand_vector_init_one_nonzero) <case E_V8QImode>:
(ix86_expand_vector_init_one_var) <case E_V8QImode>:
Do not widen for TARGET_MMX_WITH_SSE && TARGET_SSE4_1.
2019-08-14 Bernd Edlinger <bernd.edlinger@hotmail.de>

26
gcc/config/i386/i386-features.c
View File

@ -1030,11 +1030,11 @@ general_scalar_chain::convert_insn (rtx_insn *insn)
case COMPARE:
src = SUBREG_REG (XEXP (XEXP (src, 0), 0));
gcc_assert ((REG_P (src) && GET_MODE (src) == GET_MODE_INNER (vmode))
|| (SUBREG_P (src) && GET_MODE (src) == vmode));
gcc_assert ((REG_P (src) && GET_MODE (src) == DImode)
|| (SUBREG_P (src) && GET_MODE (src) == V2DImode));
if (REG_P (src))
subreg = gen_rtx_SUBREG (vmode, src, 0);
subreg = gen_rtx_SUBREG (V2DImode, src, 0);
else
subreg = copy_rtx_if_shared (src);
emit_insn_before (gen_vec_interleave_lowv2di (copy_rtx_if_shared (subreg),
@ -1273,8 +1273,12 @@ has_non_address_hard_reg (rtx_insn *insn)
(const_int 0 [0]))) */
static bool
convertible_comparison_p (rtx_insn *insn, enum machine_mode mode)
convertible_comparison_p (rtx_insn *insn, machine_mode mode)
{
/* ??? Currently convertible for double-word DImode chain only. */
if (TARGET_64BIT || mode != DImode)
return false;
if (!TARGET_SSE4_1)
return false;
@ -1306,12 +1310,12 @@ convertible_comparison_p (rtx_insn *insn, enum machine_mode mode)
if (!SUBREG_P (op1)
|| !SUBREG_P (op2)
|| GET_MODE (op1) != mode
|| GET_MODE (op2) != mode
|| GET_MODE (op1) != SImode
|| GET_MODE (op2) != SImode
|| ((SUBREG_BYTE (op1) != 0
|| SUBREG_BYTE (op2) != GET_MODE_SIZE (mode))
|| SUBREG_BYTE (op2) != GET_MODE_SIZE (SImode))
&& (SUBREG_BYTE (op2) != 0
|| SUBREG_BYTE (op1) != GET_MODE_SIZE (mode))))
|| SUBREG_BYTE (op1) != GET_MODE_SIZE (SImode))))
return false;
op1 = SUBREG_REG (op1);
@ -1319,13 +1323,13 @@ convertible_comparison_p (rtx_insn *insn, enum machine_mode mode)
if (op1 != op2
|| !REG_P (op1)
|| GET_MODE (op1) != GET_MODE_WIDER_MODE (mode).else_blk ())
|| GET_MODE (op1) != DImode)
return false;
return true;
}
/* The DImode version of scalar_to_vector_candidate_p. */
/* The general version of scalar_to_vector_candidate_p. */
static bool
general_scalar_to_vector_candidate_p (rtx_insn *insn, enum machine_mode mode)
@ -1344,7 +1348,7 @@ general_scalar_to_vector_candidate_p (rtx_insn *insn, enum machine_mode mode)
if (GET_CODE (src) == COMPARE)
return convertible_comparison_p (insn, mode);
/* We are interested in DImode promotion only. */
/* We are interested in "mode" only. */
if ((GET_MODE (src) != mode
&& !CONST_INT_P (src))
|| GET_MODE (dst) != mode)