34 lines
680 B
C
34 lines
680 B
C
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/* { dg-do run { target { x86_64-*-* && lp64 } } } */
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/* { dg-options "-g" } */
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volatile int vv;
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__attribute__((noinline, noclone)) long
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foo (long x)
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{
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long f = __builtin_clzl (x);
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long g = f;
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asm volatile ("" : "+r" (f));
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vv++; /* { dg-final { gdb-test 12 "g" "43" } } */
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return f; /* { dg-final { gdb-test 12 "f" "43" } } */
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}
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__attribute__((noinline, noclone)) long
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bar (long x)
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{
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long f = __builtin_clzl (x);
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long g = f;
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asm volatile ("" : "+r" (f));
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vv++; /* { dg-final { gdb-test 22 "g" "33" } } */
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return f; /* { dg-final { gdb-test 22 "f" "33" } } */
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}
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int
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main ()
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{
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long x = vv;
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foo (x + 0x123456UL);
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bar (x + 0x7fffffffUL);
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return 0;
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}
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