1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=gvn -S < %s | FileCheck %s 3 4target datalayout = "E-m:e-i64:64-n32:64" 5target triple = "powerpc64-unknown-linux-gnu" 6 7;; Make sure we use correct bit shift based on storage size for 8;; loads reusing a load value. 9define i64 @test1(ptr %predA, ptr %predB) { 10; CHECK-LABEL: @test1( 11; CHECK-NEXT: [[VALUELOADA_FCA_0_LOAD:%.*]] = load i1, ptr [[PREDA:%.*]], align 8 12; CHECK-NEXT: [[VALUELOADB_FCA_0_LOAD:%.*]] = load i1, ptr [[PREDB:%.*]], align 8 13; CHECK-NEXT: [[ISTRUE:%.*]] = and i1 [[VALUELOADA_FCA_0_LOAD]], [[VALUELOADB_FCA_0_LOAD]] 14; CHECK-NEXT: [[VALUELOADA_FCA_1_GEP:%.*]] = getelementptr inbounds { i1, i8 }, ptr [[PREDA]], i64 0, i32 1 15; CHECK-NEXT: [[VALUELOADA_FCA_1_LOAD:%.*]] = load i8, ptr [[VALUELOADA_FCA_1_GEP]], align 1 16; CHECK-NEXT: [[ISNOTNULLA:%.*]] = icmp ne i8 [[VALUELOADA_FCA_1_LOAD]], 0 17; CHECK-NEXT: [[VALUELOADB_FCA_1_GEP:%.*]] = getelementptr inbounds { i1, i8 }, ptr [[PREDB]], i64 0, i32 1 18; CHECK-NEXT: [[VALUELOADB_FCA_1_LOAD:%.*]] = load i8, ptr [[VALUELOADB_FCA_1_GEP]], align 1 19; CHECK-NEXT: [[ISNOTNULLB:%.*]] = icmp ne i8 [[VALUELOADB_FCA_1_LOAD]], 0 20; CHECK-NEXT: [[ISNOTNULL:%.*]] = and i1 [[ISNOTNULLA]], [[ISNOTNULLB]] 21; CHECK-NEXT: [[ISTRUEANDNOTNULL:%.*]] = and i1 [[ISTRUE]], [[ISNOTNULL]] 22; CHECK-NEXT: [[RET:%.*]] = zext i1 [[ISTRUEANDNOTNULL]] to i64 23; CHECK-NEXT: ret i64 [[RET]] 24; 25 26 %valueLoadA.fca.0.gep = getelementptr inbounds { i1, i8 }, ptr %predA, i64 0, i32 0 27 %valueLoadA.fca.0.load = load i1, ptr %valueLoadA.fca.0.gep, align 8 28 %valueLoadB.fca.0.gep = getelementptr inbounds { i1, i8 }, ptr %predB, i64 0, i32 0 29 %valueLoadB.fca.0.load = load i1, ptr %valueLoadB.fca.0.gep, align 8 30 %isTrue = and i1 %valueLoadA.fca.0.load, %valueLoadB.fca.0.load 31 %valueLoadA.fca.1.gep = getelementptr inbounds { i1, i8 }, ptr %predA, i64 0, i32 1 32 %valueLoadA.fca.1.load = load i8, ptr %valueLoadA.fca.1.gep, align 1 33 %isNotNullA = icmp ne i8 %valueLoadA.fca.1.load, 0 34 %valueLoadB.fca.1.gep = getelementptr inbounds { i1, i8 }, ptr %predB, i64 0, i32 1 35 %valueLoadB.fca.1.load = load i8, ptr %valueLoadB.fca.1.gep, align 1 36 %isNotNullB = icmp ne i8 %valueLoadB.fca.1.load, 0 37 %isNotNull = and i1 %isNotNullA, %isNotNullB 38 %isTrueAndNotNull = and i1 %isTrue, %isNotNull 39 %ret = zext i1 %isTrueAndNotNull to i64 40 ret i64 %ret 41} 42 43;; And likewise for loads reusing a store value. 44define i1 @test2(i8 %V, ptr %P) { 45; CHECK-LABEL: @test2( 46; CHECK-NEXT: store i8 [[V:%.*]], ptr [[P:%.*]], align 1 47; CHECK-NEXT: [[TMP1:%.*]] = trunc i8 [[V]] to i1 48; CHECK-NEXT: ret i1 [[TMP1]] 49; 50 store i8 %V, ptr %P 51 %A = load i1, ptr %P 52 ret i1 %A 53} 54 55