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.
16 lines
751 B
C
16 lines
751 B
C
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.11.0 -x c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck %s
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// PR32019: Clang can lower some ternary operator expressions to select
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// instructions. Make sure we only increment the profile counter for the
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// condition when the condition evaluates to true.
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// CHECK-LABEL: define{{.*}} i32 @f1
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int f1(int x) {
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// CHECK: [[TOBOOL:%.*]] = icmp ne i32 %{{.*}}, 0
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// CHECK-NEXT: [[STEP:%.*]] = zext i1 [[TOBOOL]] to i64
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// CHECK-NEXT: [[COUNTER:%.*]] = load i64, i64* getelementptr inbounds ([2 x i64], [2 x i64]* @__profc_f1, i64 0, i64 1)
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// CHECK-NEXT: add i64 [[COUNTER]], [[STEP]]
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// CHECK: [[COND:%.*]] = select i1 [[TOBOOL]], i32 0, i32 1
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return x ? 0 : 1;
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// CHECK: ret i32 [[COND]]
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}
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