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 `{{.*}} `.
28 lines
726 B
C
28 lines
726 B
C
// RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s
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#define FASTCALL __attribute__((regparm(2)))
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typedef struct {
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int aaa;
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double bbbb;
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int ccc[200];
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} foo;
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typedef void (*FType)(int, int) __attribute ((regparm (3), stdcall));
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FType bar;
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extern void FASTCALL reduced(char b, double c, foo* d, double e, int f);
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// PR7025
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void FASTCALL f1(int i, int j, int k);
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// CHECK-LABEL: define{{.*}} void @f1(i32 inreg %i, i32 inreg %j, i32 %k)
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void f1(int i, int j, int k) { }
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int
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main(void) {
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// CHECK: call void @reduced(i8 inreg signext 0, {{.*}} %struct.foo* inreg null
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reduced(0, 0.0, 0, 0.0, 0);
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// CHECK: call x86_stdcallcc void {{.*}}(i32 inreg 1, i32 inreg 2)
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bar(1,2);
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}
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