https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
Jakub Jelinek changed:
What|Removed |Added
Resolution|--- |FIXED
Status|NEW
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
--- Comment #10 from CVS Commits ---
The master branch has been updated by Jakub Jelinek :
https://gcc.gnu.org/g:3f71b82596e992eb6e53fe9bbd70a4b52bc908e8
commit r13-5999-g3f71b82596e992eb6e53fe9bbd70a4b52bc908e8
Author: Jakub Jelinek
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
--- Comment #9 from Segher Boessenkool ---
(In reply to Jakub Jelinek from comment #7)
> Created attachment 54460 [details]
> gcc13-pr108787.patch
That patch is preapproved, but please add a comment (before umaddditi4)
saying we do not want
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
--- Comment #8 from Segher Boessenkool ---
(In reply to Jakub Jelinek from comment #6)
> we used to emit in GCC 12 4/4/4/5 instructions:
> mulld 9,3,4
> mulhdu 4,3,4
> addc 3,9,5
> adde 4,4,6
> and
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
--- Comment #7 from Jakub Jelinek ---
Created attachment 54460
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54460=edit
gcc13-pr108787.patch
Patch that kills maddditi4 in addition to fixing umaddditi4. As mentioned
above, in the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
--- Comment #6 from Jakub Jelinek ---
--- gcc/config/rs6000/rs6000.md.jj 2023-01-16 11:52:16.036734757 +0100
+++ gcc/config/rs6000/rs6000.md 2023-02-14 19:46:13.915782702 +0100
@@ -3231,20 +3231,38 @@
(plus:TI
(mult:TI
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
Segher Boessenkool changed:
What|Removed |Added
Last reconfirmed||2023-02-14
Ever confirmed|0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
Jakub Jelinek changed:
What|Removed |Added
CC||segher at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
--- Comment #3 from Jakub Jelinek ---
--- gcc/config/rs6000/rs6000.md.jj 2023-01-16 11:52:16.036734757 +0100
+++ gcc/config/rs6000/rs6000.md 2023-02-14 18:53:25.071014954 +0100
@@ -3231,20 +3231,26 @@
(plus:TI
(mult:TI
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
--- Comment #2 from Jakub Jelinek ---
In *.optimized dump it looks correct:
d_16 = h2_14(D) w* s1_15(D);
_19 = WIDEN_MULT_PLUS_EXPR ;
d0_17 = WIDEN_MULT_PLUS_EXPR ;
where WIDEN_MULT_EXPR has 2 64-bit unsigned operands and 128-bit result,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
--- Comment #1 from Jakub Jelinek ---
Correction, -fPIC isn't important. Even more reduced testcase:
__attribute__((noipa)) unsigned __int128
foo (unsigned long long h0, unsigned long long h1, unsigned long long h2,
unsigned long long r0,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108787
Jakub Jelinek changed:
What|Removed |Added
Target Milestone|--- |13.0
Priority|P3
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