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re PR target/70300 (ICE: in extract_constrain_insn, at recog.c:2190 (insn does not satisfy its constraints) with -mtune=amdfam10 -mavx512bw)

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PR target/70300
	* config/i386/i386.md (cvtsd2ss splitter): Unpack in destination
	instead of source if operands[1] is xmm16 and above and
	!TARGET_AVX512VL.  Use avx512f_vec_dupv16sf_1 instead of
	vec_interleave_lowv4sf if we need to unpack xmm16 and above.

	* gcc.target/i386/pr70300.c: New test.

From-SVN: r234393
This commit is contained in:
Jakub Jelinek 2016-03-22 09:14:24 +01:00 committed by Jakub Jelinek
parent 4cde512c84
commit 4e3e2cf17d
4 changed files with 50 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,5 +1,11 @@
2016-03-22 Jakub Jelinek <jakub@redhat.com>
PR target/70300
* config/i386/i386.md (cvtsd2ss splitter): Unpack in destination
instead of source if operands[1] is xmm16 and above and
!TARGET_AVX512VL. Use avx512f_vec_dupv16sf_1 instead of
vec_interleave_lowv4sf if we need to unpack xmm16 and above.
PR c++/70295
* gimplify.c (gimplify_modify_expr): Call gimple_set_no_warning
on assign if (*from_p) is a comparison, set it to

21
gcc/config/i386/i386.md
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@ -4229,17 +4229,28 @@
{
/* If it is unsafe to overwrite upper half of source, we need
to move to destination and unpack there. */
if ((ORIGINAL_REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
|| PSEUDO_REGNO_BYTES (ORIGINAL_REGNO (operands[1])) > 4)
&& true_regnum (operands[0]) != true_regnum (operands[1]))
if (((ORIGINAL_REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
|| PSEUDO_REGNO_BYTES (ORIGINAL_REGNO (operands[1])) > 4)
&& true_regnum (operands[0]) != true_regnum (operands[1]))
|| (EXT_REX_SSE_REG_P (operands[1])
&& !TARGET_AVX512VL))
{
rtx tmp = gen_rtx_REG (SFmode, true_regnum (operands[0]));
emit_move_insn (tmp, operands[1]);
}
else
operands[3] = simplify_gen_subreg (V4SFmode, operands[1], SFmode, 0);
emit_insn (gen_vec_interleave_lowv4sf (operands[3], operands[3],
operands[3]));
/* FIXME: vec_interleave_lowv4sf for AVX512VL should allow
=v, v, then vbroadcastss will be only needed for AVX512F without
AVX512VL. */
if (!EXT_REX_SSE_REGNO_P (true_regnum (operands[3])))
emit_insn (gen_vec_interleave_lowv4sf (operands[3], operands[3],
operands[3]));
else
{
rtx tmp = simplify_gen_subreg (V16SFmode, operands[3], V4SFmode, 0);
emit_insn (gen_avx512f_vec_dupv16sf_1 (tmp, tmp));
}
}
else
emit_insn (gen_vec_setv4sf_0 (operands[3],

3
gcc/testsuite/ChangeLog
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@ -1,5 +1,8 @@
2016-03-22 Jakub Jelinek <jakub@redhat.com>
PR target/70300
* gcc.target/i386/pr70300.c: New test.
PR c++/70295
* c-c++-common/nonnull-1.c (func): Remove parens around cp4 != 0.
(func2): New function for cond with parens, xfail warning for c++.

25
gcc/testsuite/gcc.target/i386/pr70300.c Normal file
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@ -0,0 +1,25 @@
/* PR target/70300 */
/* { dg-do compile } */
/* { dg-options "-O2 -mtune=amdfam10 -mavx512f" } */
typedef _Complex A __attribute__ ((mode (SC)));
typedef _Complex B __attribute__ ((mode (DC)));
typedef _Complex C __attribute__ ((mode (TC)));
C
foo (A a, B b, C c, A d, B e, C f)
{
b -= a;
d += a;
a += f;
return a + b + d + e;
}
__attribute__((target ("avx512vl"))) C
bar (A a, B b, C c, A d, B e, C f)
{
b -= a;
d += a;
a += f;
return a + b + d + e;
}