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.
31 lines
956 B
C
31 lines
956 B
C
// RUN: %clang_cc1 -triple arm64_32-apple-ios7.0 -emit-llvm -o - %s | FileCheck %s
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struct Foo {
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char a;
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int b : 1;
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};
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int BitfieldOffset = sizeof(struct Foo);
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// CHECK: @BitfieldOffset ={{.*}} global i32 2
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int PointerSize = sizeof(void *);
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// CHECK: @PointerSize ={{.*}} global i32 4
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int PointerAlign = __alignof(void *);
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// CHECK: @PointerAlign ={{.*}} global i32 4
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int LongSize = sizeof(long);
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// CHECK: @LongSize ={{.*}} global i32 4
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int LongAlign = __alignof(long);
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// CHECK: @LongAlign ={{.*}} global i32 4
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// Not expected to change, but it's a difference between AAPCS and DarwinPCS
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// that we need to be preserved for compatibility with ARMv7k.
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long double LongDoubleVar = 0.0;
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// CHECK: @LongDoubleVar ={{.*}} global double
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typedef float __attribute__((ext_vector_type(16))) v16f32;
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v16f32 func(v16f32 in) { return in; }
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// CHECK: define{{.*}} void @func(<16 x float>* noalias sret(<16 x float>) align 16 {{%.*}}, <16 x float> {{%.*}})
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