From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.dg/attr-alias-3.c | 62 +++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/attr-alias-3.c (limited to 'gcc/testsuite/gcc.dg/attr-alias-3.c') diff --git a/gcc/testsuite/gcc.dg/attr-alias-3.c b/gcc/testsuite/gcc.dg/attr-alias-3.c new file mode 100644 index 000000000..02637b231 --- /dev/null +++ b/gcc/testsuite/gcc.dg/attr-alias-3.c @@ -0,0 +1,62 @@ +// { 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 + +// 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 +} -- cgit v1.2.3