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 `{{.*}} `.
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
// RUN: %clang_cc1 -triple i386-pc-linux -emit-llvm < %s | FileCheck %s
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// RUN: %clang_cc1 -triple i386-pc-linux -emit-llvm -mrtd < %s | FileCheck %s
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// RUN: %clang_cc1 -triple i386-pc-linux -emit-llvm -fms-compatibility < %s
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void __fastcall f1(void);
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void __stdcall f2(void);
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void __thiscall f3(void);
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void __fastcall f4(void) {
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// CHECK-LABEL: define{{.*}} x86_fastcallcc void @f4()
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f1();
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// CHECK: call x86_fastcallcc void @f1()
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}
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void __stdcall f5(void) {
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// CHECK-LABEL: define{{.*}} x86_stdcallcc void @f5()
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f2();
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// CHECK: call x86_stdcallcc void @f2()
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}
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void __thiscall f6(void) {
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// CHECK-LABEL: define{{.*}} x86_thiscallcc void @f6()
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f3();
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// CHECK: call x86_thiscallcc void @f3()
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}
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void __vectorcall f61(void) {
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// CHECK-LABEL: define{{.*}} x86_vectorcallcc void @f61()
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f3();
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// CHECK: call x86_thiscallcc void @f3()
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}
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// PR5280
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void (__fastcall *pf1)(void) = f1;
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void (__stdcall *pf2)(void) = f2;
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void (__thiscall *pf3)(void) = f3;
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void (__fastcall *pf4)(void) = f4;
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void (__stdcall *pf5)(void) = f5;
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void (__thiscall *pf6)(void) = f6;
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void (__vectorcall *pf7)(void) = f61;
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int main(void) {
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f4(); f5(); f6(); f61();
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// CHECK: call x86_fastcallcc void @f4()
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// CHECK: call x86_stdcallcc void @f5()
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// CHECK: call x86_thiscallcc void @f6()
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// CHECK: call x86_vectorcallcc void @f61()
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pf1(); pf2(); pf3(); pf4(); pf5(); pf6(); pf7();
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// CHECK: call x86_fastcallcc void %{{.*}}()
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// CHECK: call x86_stdcallcc void %{{.*}}()
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// CHECK: call x86_thiscallcc void %{{.*}}()
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// CHECK: call x86_fastcallcc void %{{.*}}()
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// CHECK: call x86_stdcallcc void %{{.*}}()
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// CHECK: call x86_thiscallcc void %{{.*}}()
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// CHECK: call x86_vectorcallcc void %{{.*}}()
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return 0;
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}
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// PR7117
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void __stdcall f7(foo) int foo; {}
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void f8(void) {
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f7(0);
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// CHECK: call x86_stdcallcc void @f7(i32 0)
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}
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// PR12535
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void __fastcall f9(int x, int y) {};
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// WIN: define{{.*}} x86_fastcallcc void @f9({{.*}})
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void __fastcall f10(int x, ...) {};
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// WIN: define{{.*}} void @f10({{.*}})
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void __stdcall f11(int x, ...) {};
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// WIN: define{{.*}} void @f11({{.*}})
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