| Vedant Kumar | 502bbfa | 2017-02-25 06:35:45 +0000 | [diff] [blame^] | 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 |
| 7 | int f1(int x) { |
| 8 | // CHECK: [[TOBOOL:%.*]] = icmp ne i32 %1, 0 |
| 9 | // CHECK-NEXT: [[STEP:%.*]] = zext i1 [[TOBOOL]] to i64 |
| 10 | // CHECK-NEXT: [[COUNTER:%.*]] = load i64, i64* getelementptr inbounds ([2 x i64], [2 x i64]* @__profc_f1, i64 0, i64 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 | } |