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re PR target/70086 (ICE: in extract_constrain_insn_cached, at recog.c:2202 (insn does not satisfy its constraints) with -mavx512vl -ffloat-store) 

PR target/70086
	* config/i386/i386.md (truncdfsf2 splitter): Use gen_vec_concatv2df
	instead of gen_sse2_loadlpd.
	* config/i386/sse.md (*vec_concatv2df): Rename to...
	(vec_concatv2df): ... this.

	* gcc.target/i386/pr70086-1.c: New test.
	* gcc.target/i386/pr70086-2.c: New test.
	* gcc.target/i386/pr70086-3.c: New test.

From-SVN: r234091
This commit is contained in:
Jakub Jelinek 2016-03-09 21:06:59 +01:00 committed by Jakub Jelinek
parent 2bd8090ff5
commit 3433b975ae
7 changed files with 69 additions and 5 deletions
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8
gcc/ChangeLog
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@ -1,4 +1,10 @@
2016-03-08 Jakub Jelinek <jakub@redhat.com>
2016-03-09 Jakub Jelinek <jakub@redhat.com>
PR target/70086
* config/i386/i386.md (truncdfsf2 splitter): Use gen_vec_concatv2df
instead of gen_sse2_loadlpd.
* config/i386/sse.md (*vec_concatv2df): Rename to...
(vec_concatv2df): ... this.
PR tree-optimization/70127
* fold-const.c (operand_equal_p): Revert the 2015-10-28 change.

4
gcc/config/i386/i386.md
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@ -4393,8 +4393,8 @@
emit_insn (gen_vec_dupv2df (operands[4], operands[1]));
}
else
emit_insn (gen_sse2_loadlpd (operands[4],
CONST0_RTX (V2DFmode), operands[1]));
emit_insn (gen_vec_concatv2df (operands[4], operands[1],
CONST0_RTX (DFmode)));
})
;; It's more profitable to split and then extend in the same register.

2
gcc/config/i386/sse.md
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@ -8951,7 +8951,7 @@
(set_attr "prefix" "orig,maybe_vex,evex")
(set_attr "mode" "V2DF,DF,DF")])
(define_insn "*vec_concatv2df"
(define_insn "vec_concatv2df"
[(set (match_operand:V2DF 0 "register_operand" "=x,x,v,x,v,x,x,v,x,x")
(vec_concat:V2DF
(match_operand:DF 1 "nonimmediate_operand" " 0,x,v,m,m,0,x,m,0,0")

7
gcc/testsuite/ChangeLog
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@ -1,4 +1,9 @@
2016-03-08 Jakub Jelinek <jakub@redhat.com>
2016-03-09 Jakub Jelinek <jakub@redhat.com>
PR target/70086
* gcc.target/i386/pr70086-1.c: New test.
* gcc.target/i386/pr70086-2.c: New test.
* gcc.target/i386/pr70086-3.c: New test.
PR tree-optimization/70127
* gcc.c-torture/execute/pr70127.c: New test.

11
gcc/testsuite/gcc.target/i386/pr70086-1.c Normal file
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@ -0,0 +1,11 @@
/* PR target/70086 */
/* { dg-do compile } */
/* { dg-options "-mtune=barcelona -mavx512vl -ffloat-store" } */
float
foo (float a, float b, double c, float d, double e, float f)
{
e -= d;
d *= e;
return e + d;
}

21
gcc/testsuite/gcc.target/i386/pr70086-2.c Normal file
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@ -0,0 +1,21 @@
/* PR target/70086 */
/* { dg-do compile { target { ! ia32 } } } */
/* { dg-options "-O2 -mtune=barcelona -mavx512vl" } */
float
foo (double *p)
{
register float xmm16 __asm ("xmm16");
xmm16 = *p;
asm volatile ("" : "+v" (xmm16));
return xmm16;
}
float
bar (double x)
{
register float xmm16 __asm ("xmm16");
xmm16 = x;
asm volatile ("" : "+v" (xmm16));
return xmm16;
}

21
gcc/testsuite/gcc.target/i386/pr70086-3.c Normal file
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@ -0,0 +1,21 @@
/* PR target/70086 */
/* { dg-do compile { target { ! ia32 } } } */
/* { dg-options "-O2 -mtune=barcelona -mavx512f -mno-avx512vl" } */
float
foo (double *p)
{
register float xmm16 __asm ("xmm16");
xmm16 = *p;
asm volatile ("" : "+v" (xmm16));
return xmm16;
}
float
bar (double x)
{
register float xmm16 __asm ("xmm16");
xmm16 = x;
asm volatile ("" : "+v" (xmm16));
return xmm16;
}