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 `{{.*}} `.
24 lines
982 B
C
24 lines
982 B
C
// RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECKC
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm -x c++ -o - %s | FileCheck %s -check-prefix=CHECKCXX
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// RUN: %clang_cc1 -triple i686-pc-linux-gnu -verify %s
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void __attribute__((aarch64_vector_pcs)) f(int *); // expected-warning {{'aarch64_vector_pcs' calling convention is not supported for this target}}
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// CHECKC: define{{.*}} void @g(
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// CHECKCXX: define{{.*}} void @_Z1gPi(
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void g(int *a) {
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// CHECKC: call aarch64_vector_pcs void @f(
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// CHECKCXX: call aarch64_vector_pcs void @_Z1fPi
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f(a);
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}
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// CHECKC: declare aarch64_vector_pcs void @f(
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// CHECKCXX: declare aarch64_vector_pcs void @_Z1fPi
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void __attribute__((aarch64_vector_pcs)) h(int *a){ // expected-warning {{'aarch64_vector_pcs' calling convention is not supported for this target}}
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// CHECKC: define{{.*}} aarch64_vector_pcs void @h(
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// CHECKCXX: define{{.*}} aarch64_vector_pcs void @_Z1hPi(
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f(a);
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}
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