6b3351792c
For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie
and COFF, but not for Mach-O. This nuance causes unneeded binary format differences.
This patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `
if there is an explicit linkage.
* Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar.
* Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
11 lines
446 B
C
11 lines
446 B
C
// RUN: %clang_cc1 -triple x86_64-apple-macos %s -S -emit-llvm -o- | FileCheck %s
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typedef __attribute__((__ext_vector_type__(4),__aligned__(16))) double simd_double4;
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typedef struct { simd_double4 columns[4]; } simd_double4x4;
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typedef simd_double4x4 matrix_double4x4;
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// CHECK: define{{.*}} void @ident(%struct.simd_double4x4* noalias sret(%struct.simd_double4x4) align 16 %agg.result
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matrix_double4x4 ident(matrix_double4x4 x) {
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return x;
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}
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