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