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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.
19 lines
524 B
C
19 lines
524 B
C
// RUN: %clang_cc1 -emit-llvm -triple i386-apple-macosx10.7.2 < %s | FileCheck %s
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// The preferred alignment for a long long on x86-32 is 8; make sure the
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// alloca for x uses that alignment.
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int test (long long x) {
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return (int)x;
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}
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// CHECK-LABEL: define{{.*}} i32 @test
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// CHECK: alloca i64, align 8
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// Make sure we honor the aligned attribute.
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struct X { int x,y,z,a; };
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int test2(struct X x __attribute((aligned(16)))) {
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return x.z;
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}
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// CHECK-LABEL: define{{.*}} i32 @test2
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// CHECK: alloca %struct.X, align 16
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