; RUN: opt -gvn -S < %s | FileCheck %s target datalayout = "E-m:e-i64:64-n32:64" target triple = "powerpc64-unknown-linux-gnu" ;; Make sure we use correct bit shift based on storage size for ;; loads reusing a load value. define i64 @test1({ i1, i8 }* %predA, { i1, i8 }* %predB) { ; CHECK-LABEL: @test1 ; CHECK: [[V1:%.*]] = load i16, i16* %{{.*}} ; CHECK: [[V2:%.*]] = lshr i16 [[V1]], 8 ; CHECK: trunc i16 [[V2]] to i1 %valueLoadA.fca.0.gep = getelementptr inbounds { i1, i8 }, { i1, i8 }* %predA, i64 0, i32 0 %valueLoadA.fca.0.load = load i1, i1* %valueLoadA.fca.0.gep, align 8 %valueLoadB.fca.0.gep = getelementptr inbounds { i1, i8 }, { i1, i8 }* %predB, i64 0, i32 0 %valueLoadB.fca.0.load = load i1, i1* %valueLoadB.fca.0.gep, align 8 %isTrue = and i1 %valueLoadA.fca.0.load, %valueLoadB.fca.0.load %valueLoadA.fca.1.gep = getelementptr inbounds { i1, i8 }, { i1, i8 }* %predA, i64 0, i32 1 %valueLoadA.fca.1.load = load i8, i8* %valueLoadA.fca.1.gep, align 1 %isNotNullA = icmp ne i8 %valueLoadA.fca.1.load, 0 %valueLoadB.fca.1.gep = getelementptr inbounds { i1, i8 }, { i1, i8 }* %predB, i64 0, i32 1 %valueLoadB.fca.1.load = load i8, i8* %valueLoadB.fca.1.gep, align 1 %isNotNullB = icmp ne i8 %valueLoadB.fca.1.load, 0 %isNotNull = and i1 %isNotNullA, %isNotNullB %isTrueAndNotNull = and i1 %isTrue, %isNotNull %ret = zext i1 %isTrueAndNotNull to i64 ret i64 %ret } ;; And likewise for loads reusing a store value. define i1 @test2(i8 %V, i8* %P) { ; CHECK-LABEL: @test2 ; CHECK-NOT: lshr store i8 %V, i8* %P %P2 = bitcast i8* %P to i1* %A = load i1, i1* %P2 ret i1 %A }