mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-26 11:56:07 +00:00
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 `{{.*}} `.
8 lines
401 B
C++
8 lines
401 B
C++
// RUN: %clang_cc1 -std=c++11 -S -emit-llvm -o - %s -triple x86_64-linux-gnu | FileCheck %s
|
|
|
|
typedef __attribute__((vector_size(4*4))) float float32x4_t;
|
|
union QDSUnion { float32x4_t q; float s[4]; };
|
|
constexpr float32x4_t a = {1,2,3,4};
|
|
QDSUnion t = {{(a)}};
|
|
// CHECK: @t ={{.*}} global %union.QDSUnion { <4 x float> <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00> }
|