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| Rev 318 |
Rev 338 |
/* PR rtl-optimization/9771 */
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/* PR rtl-optimization/9771 */
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/* { dg-do run } */
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/* { dg-do run } */
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/* { dg-require-effective-target ilp32 } */
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/* { dg-require-effective-target ilp32 } */
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/* { dg-options "-O2 -fomit-frame-pointer -ffixed-ebp" } */
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/* { dg-options "-O2 -fomit-frame-pointer -ffixed-ebp" } */
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extern void abort(void);
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extern void abort(void);
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extern void exit(int);
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extern void exit(int);
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register long *B asm ("ebp");
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register long *B asm ("ebp");
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long x = 10;
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long x = 10;
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long y = 20;
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long y = 20;
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void bar(void)
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void bar(void)
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{
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{
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B = &y;
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B = &y;
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}
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}
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void foo()
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void foo()
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{
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{
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long *adr = B;
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long *adr = B;
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long save = *adr;
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long save = *adr;
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*adr = 123;
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*adr = 123;
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bar();
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bar();
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*adr = save;
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*adr = save;
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}
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}
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int main()
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int main()
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{
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{
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B = &x;
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B = &x;
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foo();
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foo();
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if (x != 10 || y != 20)
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if (x != 10 || y != 20)
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abort();
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abort();
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/* We can't return, as our caller may assume %ebp is preserved! */
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/* We can't return, as our caller may assume %ebp is preserved! */
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/* We could save/restore it (like foo), but its easier to exit. */
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/* We could save/restore it (like foo), but its easier to exit. */
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exit(0);
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exit(0);
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}
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}
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