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i386: Fix *vec_extractv2sf_1 and *vec_extractv2sf_1 shufps alternative [PR93828]

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shufps moves two of the four packed single-precision floating-point values
from *destination* operand (first operand) into the low quadword of the
destination operand.  Match source operand to the destination.

	PR target/93828
	* config/i386/mmx.md (*vec_extractv2sf_1): Match source operand
	to destination operand for shufps alternative.
	(*vec_extractv2si_1): Ditto.

testsuite/ChangeLog:

	PR target/93828
	* g++.target/i386/pr93828.C: New test.
This commit is contained in:
Uros Bizjak 2020-02-20 21:06:18 +01:00
parent f6088573d8
commit d56779b8ae
3 changed files with 16 additions and 4 deletions
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7
gcc/ChangeLog
View file

@ -1,3 +1,10 @@
2020-02-20 Uroš Bizjak <ubizjak@gmail.com>
PR target/93828
* config/i386/mmx.md (*vec_extractv2sf_1): Match source operand
to destination operand for shufps alternative.
(*vec_extractv2si_1): Ditto.
2020-02-20 Peter Bergner <bergner@linux.ibm.com>
PR target/93658

8
gcc/config/i386/mmx.md
View file

@ -645,14 +645,14 @@
(define_insn "*vec_extractv2sf_1"
[(set (match_operand:SF 0 "nonimmediate_operand" "=y,x,x,y,x,f,r")
(vec_select:SF
(match_operand:V2SF 1 "nonimmediate_operand" " 0,x,x,o,o,o,o")
(match_operand:V2SF 1 "nonimmediate_operand" " 0,x,0,o,o,o,o")
(parallel [(const_int 1)])))]
"(TARGET_MMX || TARGET_MMX_WITH_SSE)
&& !(MEM_P (operands[0]) && MEM_P (operands[1]))"
"@
punpckhdq\t%0, %0
%vmovshdup\t{%1, %0|%0, %1}
shufps\t{$0xe5, %1, %0|%0, %1, 0xe5}
shufps\t{$0xe5, %0, %0|%0, %0, 0xe5}
#
#
#
@ -1794,7 +1794,7 @@
(define_insn "*vec_extractv2si_1"
[(set (match_operand:SI 0 "nonimmediate_operand" "=y,rm,x,x,y,x,r")
(vec_select:SI
(match_operand:V2SI 1 "nonimmediate_operand" " 0,x ,x,x,o,o,o")
(match_operand:V2SI 1 "nonimmediate_operand" " 0,x ,x,0,o,o,o")
(parallel [(const_int 1)])))]
"(TARGET_MMX || TARGET_MMX_WITH_SSE)
&& !(MEM_P (operands[0]) && MEM_P (operands[1]))"
@ -1802,7 +1802,7 @@
punpckhdq\t%0, %0
%vpextrd\t{$1, %1, %0|%0, %1, 1}
%vpshufd\t{$0xe5, %1, %0|%0, %1, 0xe5}
shufps\t{$0xe5, %1, %0|%0, %1, 0xe5}
shufps\t{$0xe5, %0, %0|%0, %0, 0xe5}
#
#
#"

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2020-02-20 Uroš Bizjak <ubizjak@gmail.com>
PR target/93828
* g++.target/i386/pr93828.C: New test.
2020-02-20 Peter Bergner <bergner@linux.ibm.com>
PR target/93658