1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=instcombine %s -S -o - | FileCheck %s 3 4; This tests that llvm.annotation does not prevent load combining. 5 6target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 7target triple = "x86_64-grtev4-linux-gnu" 8 9declare i32 @llvm.annotation.i32(i32, ptr, ptr, i32) #1 10 11define dso_local i32 @annotated(ptr %c) local_unnamed_addr #0 { 12; CHECK-LABEL: @annotated( 13; CHECK-NEXT: entry: 14; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[C:%.*]], align 4 15; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.annotation.i32.p0(i32 [[TMP0]], ptr undef, ptr undef, i32 undef) 16; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP1]], [[TMP0]] 17; CHECK-NEXT: ret i32 [[ADD]] 18; 19entry: 20 %0 = load i32, ptr %c, align 4 21 %1 = call i32 @llvm.annotation.i32(i32 %0, ptr undef, ptr undef, i32 undef) 22 %2 = load i32, ptr %c, align 4 23 %add = add nsw i32 %1, %2 24 ret i32 %add 25} 26 27attributes #0 = { nofree nounwind uwtable willreturn mustprogress } 28