expmed.c (emit_store_flag): Don't test BITS_PER_WORD * 2 wide volatile memory by parts.
* expmed.c (emit_store_flag): Don't test BITS_PER_WORD * 2 wide volatile memory by parts. * gcc.c-torture/compile/20020304-2.c: New test. From-SVN: r50314
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2002-03-05 Jakub Jelinek <jakub@redhat.com>
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* expmed.c (emit_store_flag): Don't test BITS_PER_WORD * 2
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wide volatile memory by parts.
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2002-03-05 Jakub Jelinek <jakub@redhat.com>
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* ssa-ccp.c (ssa_ccp_substitute_constants): Don't crash if def
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@ -4278,7 +4278,8 @@ emit_store_flag (target, code, op0, op1, mode, unsignedp, normalizep)
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the comparison into one involving a single word. */
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if (GET_MODE_BITSIZE (mode) == BITS_PER_WORD * 2
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&& GET_MODE_CLASS (mode) == MODE_INT
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&& op1 == const0_rtx)
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&& op1 == const0_rtx
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&& (GET_CODE (op0) != MEM || ! MEM_VOLATILE_P (op0)))
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{
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if (code == EQ || code == NE)
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{
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@ -2,6 +2,8 @@
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* gcc.dg/20020304-1.c: New test.
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* gcc.c-torture/compile/20020304-2.c: New test.
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2002-03-04 Zack Weinberg <zack@codesourcery.com>
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* gcc.c-torture/compile/20020304-1.c: New test case
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@ -0,0 +1,10 @@
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/* This testcase ICEd because a SUBREG of MEM/v was never
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simplified. */
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volatile unsigned long long *a;
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unsigned char
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foo (void)
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{
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unsigned char b = (*a != 0);
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return b;
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}
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