fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
13 lines
298 B
C
13 lines
298 B
C
// RUN: %clang_cc1 -triple i386 -emit-llvm -O2 -o - %s | FileCheck %s
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// CHECK-LABEL: define{{.*}} i32 @f0()
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// CHECK: ret i32 1
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// CHECK: }
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static _Bool f0_0(void *a0) { return (_Bool) a0; }
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int f0() { return f0_0((void*) 0x2); }
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_Bool f1(void) {
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return (_Bool) ({ void (*x)(); x = 0; });
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}
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