Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.c-torture/compile/981006-1.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* Test that tablejump insns are correctly handled. If the compiler loses track of the jump targets, it will report that x and y can be used uninitialized. This is broken in egcs 1998/10/06 for mips in pic mode. */ /* { dg-do assemble } */ /* For MIPS at least, pic is needed to trigger the problem. */ /* { dg-options "-w -Wuninitialized -Werror -fpic" } */ /* { dg-options "-w -Wuninitialized -Werror" { target { { rs6000-*-aix* powerpc*-*-aix* arm*-*-* fr30-*-* sh-*-hms h8300*-*-* cris-*-elf* mmix-*-* } || { ! fpic } } } } */ /* { dg-require-effective-target label_values } */ int foo (int a, int b) { __label__ z; int x; /* { dg-bogus "warning: `.' might be used uninitialized in this function" } */ int y; /* { dg-bogus "warning: `.' might be used uninitialized in this function" } */ static void *p; switch (a) { case 2: x = 4; break; case 4: x = 6; break; case 8: case 10: case 13: case 11: case 17: case 19: x = 7; break; default: x = -1; break; } switch (b) { case 2: y = 4; break; case 4: y = 6; break; case 8: case 10: case 13: case 11: case 17: case 19: y = 7; break; default: y = -1; break; } z: p = &&z; return x * y; } int main (int argc, char *argv[]) { return 1 == foo (argc, argc + 1); }