1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -instcombine %s -S -o - | FileCheck %s
4 ; This tests that llvm.annotation does not prevent load combining.
6 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
7 target triple = "x86_64-grtev4-linux-gnu"
9 declare i32 @llvm.annotation.i32(i32, i8*, i8*, i32) #1
11 define dso_local i32 @annotated(i32* %c) local_unnamed_addr #0 {
12 ; CHECK-LABEL: @annotated(
14 ; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[C:%.*]], align 4
15 ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.annotation.i32(i32 [[TMP0]], i8* undef, i8* undef, i32 undef)
16 ; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP1]], [[TMP0]]
17 ; CHECK-NEXT: ret i32 [[ADD]]
20 %0 = load i32, i32* %c, align 4
21 %1 = call i32 @llvm.annotation.i32(i32 %0, i8* undef, i8* undef, i32 undef)
22 %2 = load i32, i32* %c, align 4
23 %add = add nsw i32 %1, %2
27 attributes #0 = { nofree nounwind uwtable willreturn mustprogress }