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re PR rtl-optimization/15193 (Unary minus using pointer to V4SF vector causes -fforce-mem to exhaust all memory)

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PR rtl-opt/15193
        * expmed.c (extract_bit_field): Fix vector_extract return.
        * config/i386/i386.md (negv4sf2): New pattern.

From-SVN: r82699
This commit is contained in:
Richard Henderson 2004-06-07 10:21:05 -07:00 • committed by Richard Henderson
parent 07d5edd25f
commit 5c64c9001b
3 changed files with 21 additions and 3 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2004-06-07 Richard Henderson <rth@redhat.com>
PR rtl-opt/15193
* expmed.c (extract_bit_field): Fix vector_extract return.
* config/i386/i386.md (negv4sf2): New pattern.
2004-06-07 Mark Mitchell <mark@codesourcery.com>
PR c++/15337

12
gcc/config/i386/i386.md
View file

@ -20404,6 +20404,18 @@
[(set_attr "type" "sseadd")
(set_attr "mode" "SF")])
;; ??? Should probably be done by generic code instead.
(define_expand "negv4sf2"
[(set (match_operand:V4SF 0 "register_operand" "")
(xor:V4SF (match_operand:V4SF 1 "nonimmediate_operand" "")
(match_dup 2)))]
"TARGET_SSE"
{
rtx m0 = gen_lowpart (SFmode, gen_int_mode (0x80000000, SImode));
rtx vm0 = gen_rtx_CONST_VECTOR (V4SFmode, gen_rtvec (4, m0, m0, m0, m0));
operands[2] = force_reg (V4SFmode, vm0);
})
(define_insn "mulv4sf3"
[(set (match_operand:V4SF 0 "register_operand" "=x")
(mult:V4SF (match_operand:V4SF 1 "register_operand" "0")

5
gcc/expmed.c
View file

@ -1125,6 +1125,7 @@ extract_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
|| ! (*insn_data[icode].operand[1].predicate) (src, mode1)
|| ! (*insn_data[icode].operand[2].predicate) (rtxpos, mode2))
abort ();
pat = GEN_FCN (icode) (dest, src, rtxpos);
seq = get_insns ();
end_sequence ();
@ -1132,9 +1133,7 @@ extract_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
{
emit_insn (seq);
emit_insn (pat);
return extract_bit_field (dest, bitsize,
bitnum - pos * GET_MODE_BITSIZE (innermode),
unsignedp, target, mode, tmode, total_size);
return dest;
}
}