38 lines
666 B
C
38 lines
666 B
C
/* { dg-do compile } */
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/* { dg-options "-O -fdump-tree-ifcombine" } */
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void bar (void);
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void
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foo1 (unsigned int a)
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{
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if (a & 1)
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goto heaven;
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if (a & 4)
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goto heaven;
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return;
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heaven:
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bar ();
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}
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void
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foo2 (unsigned int a)
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{
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if (a & 1)
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if (a & 4)
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goto heaven;
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return;
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heaven:
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bar ();
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}
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/* The special treatment of a & 1 != 0 in fold caused the pattern not
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to be recognized due to extra conversions inserted. */
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/* { dg-final { scan-tree-dump "optimizing bits or bits test" "ifcombine" } } */
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/* { dg-final { scan-tree-dump "optimizing double bit test" "ifcombine" } } */
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/* { dg-final { cleanup-tree-dump "ifcombine" } } */
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