34 lines
858 B
C
34 lines
858 B
C
/* { dg-do compile } */
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/* { dg-options "-O1 -fdump-rtl-loop2_invariant" } */
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/* { dg-skip-if "unexpected IV" { "hppa*-*-* mips*-*-* visium-*-* powerpc*-*-* riscv*-*-* mmix-*-* vax-*-* loongarch*-*-*" } } */
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/* Load immediate on condition is available from z13 on and prevents moving
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the load out of the loop, so always run this test with -march=zEC12 that
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does not have load immediate on condition. */
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/* { dg-additional-options "-march=zEC12" { target { s390*-*-* } } } */
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void
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f (int *a, int *b)
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{
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int i;
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i = 100;
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if (i > 0)
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{
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do
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{
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int d = 42;
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a[i] = d;
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if (i % 2)
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d = i;
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b[i] = d;
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++i;
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}
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while (i < 100);
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}
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}
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/* Load of 42 is moved out of the loop, introducing a new pseudo register. */
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/* { dg-final { scan-rtl-dump-not "without introducing a new temporary register" "loop2_invariant" } } */
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