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* [Bug tree-optimization/88842] missing optimization CSE, reassociation
[not found] <bug-88842-4@http.gcc.gnu.org/bugzilla/>
@ 2020-05-15 3:25 ` luoxhu at gcc dot gnu.org
2021-12-23 8:15 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: luoxhu at gcc dot gnu.org @ 2020-05-15 3:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88842
luoxhu at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |luoxhu at gcc dot gnu.org
--- Comment #3 from luoxhu at gcc dot gnu.org ---
One more case of missed optimization CSE, reassoc:
void foo(unsigned int a, unsigned int b, unsigned int c, unsigned int d, int
*res1, int*res2, int *res3)
{
*res1 = a + b + c + d;
*res2 = b + c;
*res3 = a + d;
}
cat foo.s
.file "foo.c"
.machine power8
.abiversion 2
.section ".text"
.align 2
.p2align 4,,15
.globl foo
.type foo, @function
foo:
.LFB0:
.cfi_startproc
add 10,5,6
add 10,10,4
add 4,4,5
add 10,10,3
add 3,3,6
stw 10,0(7)
stw 4,0(8)
stw 3,0(9)
blr
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/88842] missing optimization CSE, reassociation
[not found] <bug-88842-4@http.gcc.gnu.org/bugzilla/>
2020-05-15 3:25 ` [Bug tree-optimization/88842] missing optimization CSE, reassociation luoxhu at gcc dot gnu.org
@ 2021-12-23 8:15 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-23 8:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88842
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-88842-4@http.gcc.gnu.org/bugzilla/>
2020-05-15 3:25 ` [Bug tree-optimization/88842] missing optimization CSE, reassociation luoxhu at gcc dot gnu.org
2021-12-23 8:15 ` pinskia at gcc dot gnu.org
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