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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [20020919-1.c] - Rev 310
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/* Copyright (C) 2002 Free Software Foundation. by Hans-Peter Nilsson <hp@axis.com> Making sure that asm clobbers conflicting with asm-declared input operands are detected: ``You may not write a clobber description in a way that overlaps with an input or output operand''. You must be this tall ---> fit two long longs in asm-declared registers to enter this amusement. */ /* { dg-do compile { target alpha*-*-* cris-*-* crisv32-*-* i?86-*-* mmix-*-* powerpc*-*-* rs6000-*-* x86_64-*-* } } */ /* { dg-options "-O2" } */ /* Constructed examples; input/output (same register), output, input, and input and output (different registers). */ /* The long longs are used to test overlap overlap for multi-register registers. REG2 and REG4 must be the second halves (defined as higher-numbered parts) of REG1 and REG3 respectively when two registers are needed. */ #if defined (__alpha__) # define REG1 "$1" # define REG2 "$2" #elif defined (__CRIS__) # define REG1 "r10" # define REG2 "r11" # define REG3 "r12" # define REG4 "r13" # define REG5 "r9" #elif defined (__i386__) # define REG1 "%eax" # define REG2 "%edx" /* On Darwin -fpic is on by default, so don't use %ebx. */ # define REG3 "%esi" # define REG4 "%edi" #elif defined (__MMIX__) # define REG1 "$8" # define REG2 "$9" #elif defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) \ || defined (__POWERPC__) || defined (PPC) || defined (_IBMR2) \ || defined (__ppc) # define REG1 "6" # define REG2 "7" # if !defined(__powerpc64__) && !defined(__LP64__) # define REG3 "8" # define REG4 "9" # endif #elif defined (__x86_64__) # define REG1 "rax" # define REG2 "rdx" #endif /* For readability of the tests. */ #ifdef REG3 # define REG1a REG1 # define REG1b REG2 # define REG2a REG3 # define REG2b REG4 #else # define REG1a REG1 # define REG1b REG1 # define REG2a REG2 # define REG2b REG2 #endif /* REG5 is just another reg if there is one; the difference to REG4 is to keep the original set of registers for CRIS. */ #ifndef REG5 #define REG5 REG2b #endif void * foo (void *p) { register void *q asm (REG1) = p; asm ("foo1 %0" : "=r" (q) : "0" (q) : REG1); /* { dg-error "conflict" } */ return q; } void * nfoo (void *p) { register void *q asm (REG1) = p; asm ("foo1 %0" : "=r" (q) : "0" (q) : REG2); return q; } long long foolla (long long llp) { register long long ll asm (REG1a) = llp; asm ("foo1a %0" : "=r" (ll) : "0" (ll) : REG1a); /* { dg-error "conflict" } */ return ll; } long long nfoolla (long long llp) { register long long ll asm (REG1a) = llp; asm ("foo1a %0" : "=r" (ll) : "0" (ll) : REG2a); return ll; } long long foollb (long long llp) { register long long ll asm (REG1a) = llp; asm ("foo1b %0" : "=r" (ll) : "0" (ll) : REG1b); /* { dg-error "conflict" } */ return ll; } void * bar (void *p) { register void *q asm (REG1); register void *w asm (REG2) = p; asm ("bar1 %1,%0" : "=r" (q) : "r" (w) : REG1); /* { dg-error "conflict" } */ return q; } long long barlla (long long llp) { register long long ll asm (REG1a); register long long mm asm (REG2a) = llp; asm ("bar1a %1,%0" : "=r" (ll) : "r" (mm) : REG1b); /* { dg-error "conflict" } */ return ll; } long long barllb (long long llp) { register long long ll asm (REG1a); register long long mm asm (REG2a) = llp; asm ("bar1b %1,%0" : "=r" (ll) : "r" (mm) : REG2b); /* { dg-error "conflict" } */ return ll; } void * foobar (void *p) { register void *q asm (REG1); register void *w asm (REG2) = p; asm ("foobar1 %1,%0" : "=r" (q) : "r" (w) : REG2); /* { dg-error "conflict" } */ return q; } void * nfoobar (void *p) { register void *q asm (REG1); register void *w = p; asm ("foobar1 %1,%0" : "=r" (q) : "r" (w) : REG2); return q; } long long foobarlla (long long llp) { register long long ll asm (REG1a); register long long mm asm (REG2a) = llp; asm ("foobar1a %1,%0" : "=r" (ll) : "r" (mm) : REG1b); /* { dg-error "conflict" } */ return ll; } long long nfoobarlla (long long llp) { register long long ll asm (REG1a); register long long mm = llp; asm ("foobar1a %1,%0" : "=r" (ll) : "r" (mm) : REG2a); return ll; } long long foobarllb (long long llp) { register long long ll asm (REG1a); register long long mm asm (REG2a) = llp; asm ("foobar1b %1,%0" : "=r" (ll) : "r" (mm) : REG2b); /* { dg-error "conflict" } */ return ll; } long long nfoobarllb (long long llp) { register long long ll asm (REG1a); register long long mm = llp; asm ("foobar1b %1,%0" : "=r" (ll) : "r" (mm) : REG2b); return ll; } void * baz (void *p) { register void *q asm (REG1); register void *w asm (REG2) = p; asm ("baz1 %1,%0" : "=r" (q) : "r" (w) : REG1, REG2); /* { dg-error "conflict" } */ return q; } void * nbaz (void *p) { register void *q; register void *w = p; asm ("baz1 %1,%0" : "=r" (q) : "r" (w) : REG1, REG2); return q; } void * nbaz2 (void *p) { register void *q asm (REG1); register void *w asm (REG2) = p; asm ("baz1 %1,%0" : "=r" (q) : "r" (w)); return q; } long long bazlla (long long llp) { register long long ll asm (REG1a); register long long mm asm (REG2a) = llp; asm ("baz1a %1,%0" : "=r" (ll) : "r" (mm) : REG1a, REG2a); /* { dg-error "conflict" } */ return ll; } long long bazllb (long long llp) { register long long ll asm (REG1a); register long long mm asm (REG2a) = llp; asm ("baz2a %1,%0" : "=r" (ll) : "r" (mm) : REG1b, REG2b); /* { dg-error "conflict" } */ return ll; } /* Real-world example of bug. */ #ifdef _WIN64 typedef unsigned int loc_size_t __attribute__ ((mode (DI))); #else typedef __SIZE_TYPE__ loc_size_t; #endif struct stat; int _dl_stat (const char *file_name, struct stat *buf) { register long a asm (REG1) = (long) (loc_size_t) file_name; register long b asm (REG2) = (long) (loc_size_t) buf; asm volatile ("movu.w %1,$r9\n\tbreak 13" : "=r" (a) : "g" (106), "0" (a), "r" (b) : REG1, REG5); /* { dg-error "conflict" } */ if (a >= 0) return (int) a; return (int) -1; }
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