| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -instcombine %s -S -o - | FileCheck %s |
| |
| ; This tests that llvm.annotation does not prevent load combining. |
| |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-grtev4-linux-gnu" |
| |
| declare i32 @llvm.annotation.i32(i32, i8*, i8*, i32) #1 |
| |
| define dso_local i32 @annotated(i32* %c) local_unnamed_addr #0 { |
| ; CHECK-LABEL: @annotated( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[C:%.*]], align 4 |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.annotation.i32(i32 [[TMP0]], i8* undef, i8* undef, i32 undef) |
| ; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: ret i32 [[ADD]] |
| ; |
| entry: |
| %0 = load i32, i32* %c, align 4 |
| %1 = call i32 @llvm.annotation.i32(i32 %0, i8* undef, i8* undef, i32 undef) |
| %2 = load i32, i32* %c, align 4 |
| %add = add nsw i32 %1, %2 |
| ret i32 %add |
| } |
| |
| attributes #0 = { nofree nounwind uwtable willreturn mustprogress } |
