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Extend pass rpad to handle avx512f vcvtusi2ss vcvtusi2ss 538.imagick_r improved... 

Extend pass rpad to handle avx512f vcvtusi2ss vcvtusi2ss
538.imagick_r improved by 4% with single copy run on SKYLAKE workstation.

gcc/
	* config/i386/i386.md
	(*floatuns<SWI48:mode><MODEF:mode>2_avx512):
	Add avx_partial_xmm_update.

gcc/testsuie
	* gcc.target/i386/pr87007-3.c: New test.

From-SVN: r275926
This commit is contained in:
Hongtao Liu 2019-09-19 01:21:39 +00:00 committed by Hongtao Liu
parent a923a46394
commit fbd33afe47
4 changed files with 30 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2019-09-19 Hongtao Liu <hongtao.liu@intel.com>
PR target/87007
* config/i386.md (*floatuns<SWI48:mode><MODEF:mode>2_avx512):
Add avx_partial_xmm_update.
2019-09-18 Jim Wilson <jimw@sifive.com>
PR target/91683

1
gcc/config/i386/i386.md
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@ -5196,6 +5196,7 @@
"TARGET_AVX512F && TARGET_SSE_MATH"
"vcvtusi2<MODEF:ssemodesuffix><SWI48:rex64suffix>\t{%1, %0, %0|%0, %0, %1}"
[(set_attr "type" "sseicvt")
(set_attr "avx_partial_xmm_update" "true")
(set_attr "prefix" "evex")
(set_attr "mode" "<MODEF:MODE>")])

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2019-09-19 Hongtao Liu <hongtao.liu@intel.com>
PR target/87007
* gcc.target/i386/pr87007-3.c: New test.
2019-09-18 H.J. Lu <hongjiu.lu@intel.com>
PR target/90878

18
gcc/testsuite/gcc.target/i386/pr87007-3.c Normal file
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@ -0,0 +1,18 @@
/* { dg-do compile } */
/* { dg-options "-O2 -march=skylake-avx512 -mfpmath=sse" } */
extern float f;
extern double d;
extern unsigned char c;
void
foo (int n, int k)
{
for (int i = 0; i != n; i++)
if(i < k)
d = c;
else
f = c;
}
/* { dg-final { scan-assembler-times "vxorps\[^\n\r\]*xmm\[0-9\]" 1 } } */