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* [Bug target/105052] New: Incorrect constraint on SSSE3 split patterns with MMX operands
@ 2022-03-25  4:40 hjl.tools at gmail dot com
  2022-03-26 14:16 ` [Bug target/105052] " cvs-commit at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: hjl.tools at gmail dot com @ 2022-03-25  4:40 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105052

            Bug ID: 105052
           Summary: Incorrect constraint on SSSE3 split patterns with MMX
                    operands
           Product: gcc
           Version: 10.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---

define_insn_and_split "ssse3_ph<plusminus_mnemonic>wv4hi3"

and

define_insn_and_split "ssse3_ph<plusminus_mnemonic>dv2si3"

have the Yv register constraint:

(define_register_constraint "Yv"
 "TARGET_AVX512VL ? ALL_SSE_REGS : TARGET_SSE ? SSE_REGS : NO_REGS"
 "@internal For AVX512VL, any EVEX encodable SSE register
(@code{%xmm0-%xmm31}), otherwise any SSE register.")

But these instructions aren't available with EVEX encoding.  The x register
constraint should be used.

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2022-03-26 20:34 UTC | newest]

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-- links below jump to the message on this page --
2022-03-25  4:40 [Bug target/105052] New: Incorrect constraint on SSSE3 split patterns with MMX operands hjl.tools at gmail dot com
2022-03-26 14:16 ` [Bug target/105052] " cvs-commit at gcc dot gnu.org
2022-03-26 20:02 ` cvs-commit at gcc dot gnu.org
2022-03-26 20:03 ` cvs-commit at gcc dot gnu.org
2022-03-26 20:34 ` hjl.tools at gmail dot com

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