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2005-01-09 Alexandre Oliva <aoliva@redhat.com>
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* config/i386/i386.md: Adjust sse conditional move patterns to
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match both nonimm® and reg&nonimm in compare operands.
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2006-04-25 Jakub Jelinek <jakub@redhat.com>
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* gcc.dg/20060425-1.c: New test.
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--- gcc/config/i386/i386.md 2005-10-24 18:18:40.000000000 -0200
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+++ gcc/config/i386/i386.md 2006-01-09 16:16:06.000000000 -0200
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@@ -16815,25 +16815,30 @@
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(define_split
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[(set (match_operand 0 "register_operand" "")
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(if_then_else (match_operator 1 "comparison_operator"
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- [(match_operand 4 "register_operand" "")
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+ [(match_operand 4 "nonimmediate_operand" "")
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(match_operand 5 "nonimmediate_operand" "")])
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(match_operand 2 "nonmemory_operand" "")
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(match_operand 3 "nonmemory_operand" "")))]
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"SSE_REG_P (operands[0]) && reload_completed
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+ && ((REG_P (operands[4]) && REGNO (operands[4]) == REGNO (operands[0]))
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+ || (REG_P (operands[5]) && REGNO (operands[5]) == REGNO (operands[0])))
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&& (const0_operand (operands[2], GET_MODE (operands[0]))
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|| const0_operand (operands[3], GET_MODE (operands[0])))"
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- [(set (match_dup 0) (match_op_dup 1 [(match_dup 0) (match_dup 5)]))
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+ [(set (match_dup 0) (match_op_dup 1 [(match_dup 4) (match_dup 5)]))
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(set (subreg:TI (match_dup 0) 0) (and:TI (match_dup 6)
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(subreg:TI (match_dup 7) 0)))]
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{
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PUT_MODE (operands[1], GET_MODE (operands[0]));
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- if (!sse_comparison_operator (operands[1], VOIDmode))
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+ if (REGNO (operands[4]) != REGNO (operands[0])
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+ || !sse_comparison_operator (operands[1], VOIDmode))
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{
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rtx tmp = operands[5];
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operands[5] = operands[4];
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operands[4] = tmp;
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PUT_CODE (operands[1], swap_condition (GET_CODE (operands[1])));
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}
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+ if (!sse_comparison_operator (operands[1], VOIDmode))
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+ abort ();
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if (const0_operand (operands[2], GET_MODE (operands[0])))
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{
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operands[7] = operands[3];
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--- gcc/testsuite/gcc.dg/20060425-1.c 2004-06-24 14:04:38.000000000 -0400
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+++ gcc/testsuite/gcc.dg/20060425-1.c 2006-04-25 09:15:04.000000000 -0400
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@@ -0,0 +1,10 @@
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+/* { dg-do compile } */
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+/* { dg-options "-O2" } */
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+
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+double
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+crashme (double v, double *p)
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+{
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+ if (v < 0. && *p == 1.)
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+ v = 0.;
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+ return v;
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+}
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