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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [attr-alias-3.c] - Rev 301
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// { dg-do link } // { dg-xfail-if "" { "powerpc-ibm-aix*" } { "*" } { "" } } // { dg-require-alias "" } // { dg-options "-O2 -fno-common" } // Copyright 2005 Free Software Foundation, Inc. // Contributed by Alexandre Oliva <aoliva@redhat.com> // PR middle-end/24295 // The unit-at-a-time call graph code used to fail to emit variables // without external linkage that were only used indirectly, through // aliases. Although the PR above is about #pragma weak-introduced // aliases, the underlying machinery is the same. #ifndef ATTRIBUTE_USED # define ATTRIBUTE_USED __attribute__((used)) #endif static int lv1; extern int Av1a __attribute__((alias ("lv1"))); int *pv1a = &Av1a; static int lv2; extern int Av2a __attribute__((alias ("lv2"))); int *pv2a = &lv2; static int lv3; extern int Av3a __attribute__((alias ("lv3"))); static int *pv3a ATTRIBUTE_USED = &Av3a; static int lv4; extern int Av4a __attribute__((alias ("lv4"))); static int *pv4a = &Av4a; typedef void ftype(void); static void lf1(void) {} extern ftype Af1a __attribute__((alias ("lf1"))); ftype *pf1a = &Af1a; static void lf2(void) {} extern ftype Af2a __attribute__((alias ("lf2"))); ftype *pf2a = &Af2a; static void lf3(void) {} extern ftype Af3a __attribute__((alias ("lf3"))); static ftype *pf3a ATTRIBUTE_USED = &Af3a; static void lf4(void) {} extern ftype Af4a __attribute__((alias ("lf4"))); static ftype *pf4a = &Af4a; main() { #ifdef __mips /* Use real asm for MIPS, to stop the assembler warning about orphaned high-part relocations. */ asm volatile ("lw $2,%0\n\tlw $2,%1" : : "m" (pv4a), "m" (pf4a) : "$2"); #else asm volatile ("" : : "m" (pv4a), "m" (pf4a)); #endif }
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