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Fix extraction from odd-numbered MSA registers

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This fixes a build-failure with gcc.c-torture/execute/20050604-1.c when
using -mabi=32 -mmsa -mno-odd-spreg.

gcc/
	* config/mips/mips-msa.md (msa_vec_extract_<msafmt_f>): Update
	extraction from odd-numbered MSA register.

From-SVN: r246613
This commit is contained in:
Matthew Fortune 2017-03-31 09:21:57 +00:00 committed by Matthew Fortune
parent eceb24097b
commit c330f78894
2 changed files with 19 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2017-03-31 Matthew Fortune <matthew.fortune@imgtec.com>
* config/mips/mips-msa.md (msa_vec_extract_<msafmt_f>): Update
extraction from odd-numbered MSA register.
2017-03-31 Jakub Jelinek <jakub@redhat.com>
PR middle-end/80173

15
gcc/config/mips/mips-msa.md
View File

@ -366,7 +366,20 @@
"#"
"&& reload_completed"
[(set (match_dup 0) (match_dup 1))]
"operands[1] = gen_rtx_REG (<UNITMODE>mode, REGNO (operands[1]));"
{
/* An MSA register cannot be reinterpreted as a single precision
register when using -mno-odd-spreg and the MSA register is
an odd number. */
if (<UNITMODE>mode == SFmode && !TARGET_ODD_SPREG
&& (REGNO (operands[1]) & 1))
{
emit_move_insn (gen_rtx_REG (<MODE>mode, REGNO (operands[0])),
operands[1]);
operands[1] = operands[0];
}
else
operands[1] = gen_rtx_REG (<UNITMODE>mode, REGNO (operands[1]));
}
[(set_attr "move_type" "fmove")
(set_attr "mode" "<UNITMODE>")])