37 lines
914 B
C
37 lines
914 B
C
/* { dg-options "-Os -fdump-rtl-hoist -fno-code-hoisting" } */
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/* The rtl hoist pass requires that the expression to be hoisted can
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be assigned without clobbering cc. For a PLUS rtx on S/390 this
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requires a load address instruction which is fine on 64 bit but
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cannot be used on 31 bit since it does a 31 bit add only. */
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/* { dg-final { scan-rtl-dump "PRE/HOIST: end of bb .* copying expression" "hoist" { target { !s390*-*-* || lp64 } } } } */
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#define BUF 100
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long a[BUF];
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void com (long);
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void bar (long);
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long foo (long x, long y, long z)
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{
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/* "x+y" won't be hoisted if "-fira-hoist-pressure" is disabled,
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because its rtx_cost is too small. */
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if (z)
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{
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a[1] = a[0];
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a[2] = a[1];
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a[3] = a[3];
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a[4] = a[5];
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a[5] = a[7];
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a[6] = a[11];
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a[7] = a[13];
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a[8] = a[17];
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com (x+y);
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}
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else
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{
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bar (x+y);
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}
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return 0;
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}
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