40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
/* Verify that constant equivalences get reloaded properly, either by being
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spilled to the stack, or regenerated, but not dropped to memory. */
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/* { dg-do compile { target { { i?86-*-* rs6000-*-* alpha*-*-* x86_64-*-* } || { powerpc*-*-* && ilp32 } } } } */
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/* { dg-require-effective-target fpic } */
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/* { dg-options "-O2 -fpic -fno-omit-frame-pointer -fno-asynchronous-unwind-tables" } */
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/* { dg-final { scan-assembler-not "LC\[0-9\]" } } */
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/* Clobber all call-saved registers that can hold a pointer value. */
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#if defined(__i386__)
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#define clobber \
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asm volatile("#asm" : : : "si", "di")
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#elif defined(__powerpc__) || defined(__PPC__) || defined(__ppc__) || defined(__POWERPC__) || defined(PPC) || defined (_IBMR2) || defined (__ppc)
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#define clobber \
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asm volatile("#asm" : : : "14", "15", "16", "17", "18", "19", "20", \
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"21", "22", "23", "24", "25", "26", "27", "28", "29")
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#elif defined(__alpha__)
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#define clobber \
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asm volatile("#asm" : : : "$9", "$10", "$11", "$12", "$13", "$14", \
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"$f2", "$f3", "$f4", "$f5", "$f6", "$f7", "$f8", "$f9")
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#elif defined(__x86_64__)
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#define clobber \
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asm volatile("#asm" : : : "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", "r11")
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#else
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#error no clobber macro defined
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#endif
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extern void f1(int, int, int);
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extern void f2(int*, int*, int*);
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extern int ext;
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static int loc_small;
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static int loc_big[100];
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void bar(void)
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{
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f1(ext, loc_small, loc_big[0]);
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clobber;
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f2(&ext, &loc_small, &loc_big[0]);
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}
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