https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
Jakub Jelinek changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
--- Comment #9 from Jakub Jelinek ---
Author: jakub
Date: Sun Feb 24 19:23:51 2019
New Revision: 269176
URL: https://gcc.gnu.org/viewcvs?rev=269176&root=gcc&view=rev
Log:
PR rtl-optimization/89445
* simplify-rtx.c (simplify_terna
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
--- Comment #8 from Thiago Macieira ---
Sorry, in editing I ended up removing an important point: GCC 8 also generates
the move *from* OpMask when I put it in the benchmark loop. So that's not a
regression, per se.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
--- Comment #7 from Thiago Macieira ---
Comment on attachment 45800
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45800
gcc9-pr89445.patch
Tested and works on my machine.
The movzbl that GCC 8 generated is also gone, but it inserted move
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
--- Comment #6 from Thiago Macieira ---
(In reply to Jakub Jelinek from comment #4)
> vmovupd (%rsi,%rax), %zmm1{%k1}{z}
> addq%rdx, %rax
> vmovupd (%rax), %zmm2{%k1}{z}
> vfmadd132pd %zmm0, %zmm2, %zmm1
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
--- Comment #5 from Jakub Jelinek ---
Created attachment 45800
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45800&action=edit
gcc9-pr89445.patch
Full untested fix.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
--- Comment #4 from Jakub Jelinek ---
vmovupd (%rsi,%rax), %zmm1{%k1}{z}
addq%rdx, %rax
vmovupd (%rax), %zmm2{%k1}{z}
vfmadd132pd %zmm0, %zmm2, %zmm1
vmovupd %zmm1, (%rax){%k1}
isn't optimal btw, it
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
--- Comment #3 from Jakub Jelinek ---
Something like:
--- gcc/simplify-rtx.c.jj 2019-01-10 11:43:14.390377646 +0100
+++ gcc/simplify-rtx.c 2019-02-22 17:54:36.633829649 +0100
@@ -6073,8 +6073,10 @@ simplify_ternary_operation (enum rtx_cod
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
Jakub Jelinek changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89445
Richard Biener changed:
What|Removed |Added
Keywords||wrong-code
Target|
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