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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 `{{.*}} `.
16 lines
622 B
C++
16 lines
622 B
C++
// RUN: %clang_cc1 -triple arm64-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple arm64-linux-gnu -emit-llvm -o - %s -target-abi darwinpcs | FileCheck %s --check-prefix=CHECK-DARWIN
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void test_extensions(bool a, char b, short c) {}
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// CHECK: define{{.*}} void @_Z15test_extensionsbcs(i1 %a, i8 %b, i16 %c)
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// CHECK-DARWIN: define{{.*}} void @_Z15test_extensionsbcs(i1 zeroext %a, i8 signext %b, i16 signext %c)
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struct Empty {};
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void test_empty(Empty e) {}
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// CHECK: define{{.*}} void @_Z10test_empty5Empty(i8
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// CHECK-DARWIN: define{{.*}} void @_Z10test_empty5Empty()
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struct HFA {
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float a[3];
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};
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