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* [Bug bootstrap/90497] [10 Regression] Broken bootstrap on i686-linux
[not found] <bug-90497-4@http.gcc.gnu.org/bugzilla/>
@ 2020-04-03 11:01 ` hjl.tools at gmail dot com
2020-04-03 11:14 ` jakub at gcc dot gnu.org
2020-04-03 11:18 ` jakub at gcc dot gnu.org
2 siblings, 0 replies; 3+ messages in thread
From: hjl.tools at gmail dot com @ 2020-04-03 11:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90497
--- Comment #9 from H.J. Lu <hjl.tools at gmail dot com> ---
Why do we have
define_expand "sse2_umulv1siv1di3"
[(set (match_operand:V1DI 0 "register_operand")
(mult:V1DI
(zero_extend:V1DI
(vec_select:V1SI
(match_operand:V2SI 1 "nonimmediate_operand")
(parallel [(const_int 0)])))
(zero_extend:V1DI
(vec_select:V1SI
(match_operand:V2SI 2 "nonimmediate_operand")
(parallel [(const_int 0)])))))]
"TARGET_SSE2"
"ix86_fixup_binary_operands_no_copy (MULT, V2SImode, operands);")
i386-builtin.def:BDESC (OPTION_MASK_ISA_SSE2 | OPTION_MASK_ISA_MMX, 0,
CODE_FOR_sse2_umulv1siv1di3, "__builtin_ia32_pmuludq", IX86_BUILTIN_PMULUDQ,
UNKNOWN, (int) V1DI_FTYPE_V2SI_V2SI)
sse2_umulv1siv1di3 isn't available with MMX.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug bootstrap/90497] [10 Regression] Broken bootstrap on i686-linux
[not found] <bug-90497-4@http.gcc.gnu.org/bugzilla/>
2020-04-03 11:01 ` [Bug bootstrap/90497] [10 Regression] Broken bootstrap on i686-linux hjl.tools at gmail dot com
@ 2020-04-03 11:14 ` jakub at gcc dot gnu.org
2020-04-03 11:18 ` jakub at gcc dot gnu.org
2 siblings, 0 replies; 3+ messages in thread
From: jakub at gcc dot gnu.org @ 2020-04-03 11:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90497
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
That changed in PR79565 / PR82483, but I'm afraid I don't remember that change
much. Guess it has something to do with the patterns using V2SImode which
wasn't enabled when MMX was disabled.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug bootstrap/90497] [10 Regression] Broken bootstrap on i686-linux
[not found] <bug-90497-4@http.gcc.gnu.org/bugzilla/>
2020-04-03 11:01 ` [Bug bootstrap/90497] [10 Regression] Broken bootstrap on i686-linux hjl.tools at gmail dot com
2020-04-03 11:14 ` jakub at gcc dot gnu.org
@ 2020-04-03 11:18 ` jakub at gcc dot gnu.org
2 siblings, 0 replies; 3+ messages in thread
From: jakub at gcc dot gnu.org @ 2020-04-03 11:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90497
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
See https://gcc.gnu.org/legacy-ml/gcc-patches/2017-10/msg00576.html and
https://gcc.gnu.org/legacy-ml/gcc-patches/2017-10/msg00522.html for details.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-04-03 11:18 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-04-03 11:01 ` [Bug bootstrap/90497] [10 Regression] Broken bootstrap on i686-linux hjl.tools at gmail dot com
2020-04-03 11:14 ` jakub at gcc dot gnu.org
2020-04-03 11:18 ` jakub at gcc dot gnu.org
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