xref: /llvm-project/clang/test/Profile/c-ternary.c (revision 627180562911b93a523fea000511311ed0d381e4)
1 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.11.0 -x c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck %s
2 
3 // PR32019: Clang can lower some ternary operator expressions to select
4 // instructions. Make sure we only increment the profile counter for the
5 // condition when the condition evaluates to true.
6 // CHECK-LABEL: define{{.*}} i32 @f1
f1(int x)7 int f1(int x) {
8   // CHECK: [[TOBOOL:%.*]] = icmp ne i32 %{{.*}}, 0
9   // CHECK-NEXT: [[STEP:%.*]] = zext i1 [[TOBOOL]] to i64
10   // CHECK-NEXT: [[COUNTER:%.*]] = load i64, ptr getelementptr inbounds ([2 x i64], ptr @__profc_f1, i32 0, i32 1)
11   // CHECK-NEXT: add i64 [[COUNTER]], [[STEP]]
12   // CHECK: [[COND:%.*]] = select i1 [[TOBOOL]], i32 0, i32 1
13   return x ? 0 : 1;
14 // CHECK: ret i32 [[COND]]
15 }
16