1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -sroa -S | FileCheck %s 2*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n8:16:32:64" 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Workerdefine void @test1({ i8, i8 }* %a, { i8, i8 }* %b) { 7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test1( 8*9880d681SAndroid Build Coastguard Worker; CHECK: %[[gep_a0:.*]] = getelementptr inbounds { i8, i8 }, { i8, i8 }* %a, i64 0, i32 0 9*9880d681SAndroid Build Coastguard Worker; CHECK: %[[a0:.*]] = load i8, i8* %[[gep_a0]], align 16 10*9880d681SAndroid Build Coastguard Worker; CHECK: %[[gep_a1:.*]] = getelementptr inbounds { i8, i8 }, { i8, i8 }* %a, i64 0, i32 1 11*9880d681SAndroid Build Coastguard Worker; CHECK: %[[a1:.*]] = load i8, i8* %[[gep_a1]], align 1 12*9880d681SAndroid Build Coastguard Worker; CHECK: %[[gep_b0:.*]] = getelementptr inbounds { i8, i8 }, { i8, i8 }* %b, i64 0, i32 0 13*9880d681SAndroid Build Coastguard Worker; CHECK: store i8 %[[a0]], i8* %[[gep_b0]], align 16 14*9880d681SAndroid Build Coastguard Worker; CHECK: %[[gep_b1:.*]] = getelementptr inbounds { i8, i8 }, { i8, i8 }* %b, i64 0, i32 1 15*9880d681SAndroid Build Coastguard Worker; CHECK: store i8 %[[a1]], i8* %[[gep_b1]], align 1 16*9880d681SAndroid Build Coastguard Worker; CHECK: ret void 17*9880d681SAndroid Build Coastguard Worker 18*9880d681SAndroid Build Coastguard Workerentry: 19*9880d681SAndroid Build Coastguard Worker %alloca = alloca { i8, i8 }, align 16 20*9880d681SAndroid Build Coastguard Worker %gep_a = getelementptr { i8, i8 }, { i8, i8 }* %a, i32 0, i32 0 21*9880d681SAndroid Build Coastguard Worker %gep_alloca = getelementptr { i8, i8 }, { i8, i8 }* %alloca, i32 0, i32 0 22*9880d681SAndroid Build Coastguard Worker %gep_b = getelementptr { i8, i8 }, { i8, i8 }* %b, i32 0, i32 0 23*9880d681SAndroid Build Coastguard Worker 24*9880d681SAndroid Build Coastguard Worker store i8 420, i8* %gep_alloca, align 16 25*9880d681SAndroid Build Coastguard Worker 26*9880d681SAndroid Build Coastguard Worker call void @llvm.memcpy.p0i8.p0i8.i32(i8* %gep_alloca, i8* %gep_a, i32 2, i32 16, i1 false) 27*9880d681SAndroid Build Coastguard Worker call void @llvm.memcpy.p0i8.p0i8.i32(i8* %gep_b, i8* %gep_alloca, i32 2, i32 16, i1 false) 28*9880d681SAndroid Build Coastguard Worker ret void 29*9880d681SAndroid Build Coastguard Worker} 30*9880d681SAndroid Build Coastguard Worker 31*9880d681SAndroid Build Coastguard Workerdefine void @test2() { 32*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test2( 33*9880d681SAndroid Build Coastguard Worker; CHECK: alloca i16 34*9880d681SAndroid Build Coastguard Worker; CHECK: load i8, i8* %{{.*}} 35*9880d681SAndroid Build Coastguard Worker; CHECK: store i8 42, i8* %{{.*}} 36*9880d681SAndroid Build Coastguard Worker; CHECK: ret void 37*9880d681SAndroid Build Coastguard Worker 38*9880d681SAndroid Build Coastguard Workerentry: 39*9880d681SAndroid Build Coastguard Worker %a = alloca { i8, i8, i8, i8 }, align 2 40*9880d681SAndroid Build Coastguard Worker %gep1 = getelementptr { i8, i8, i8, i8 }, { i8, i8, i8, i8 }* %a, i32 0, i32 1 41*9880d681SAndroid Build Coastguard Worker %cast1 = bitcast i8* %gep1 to i16* 42*9880d681SAndroid Build Coastguard Worker store volatile i16 0, i16* %cast1 43*9880d681SAndroid Build Coastguard Worker %gep2 = getelementptr { i8, i8, i8, i8 }, { i8, i8, i8, i8 }* %a, i32 0, i32 2 44*9880d681SAndroid Build Coastguard Worker %result = load i8, i8* %gep2 45*9880d681SAndroid Build Coastguard Worker store i8 42, i8* %gep2 46*9880d681SAndroid Build Coastguard Worker ret void 47*9880d681SAndroid Build Coastguard Worker} 48*9880d681SAndroid Build Coastguard Worker 49*9880d681SAndroid Build Coastguard Workerdefine void @PR13920(<2 x i64>* %a, i16* %b) { 50*9880d681SAndroid Build Coastguard Worker; Test that alignments on memcpy intrinsics get propagated to loads and stores. 51*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @PR13920( 52*9880d681SAndroid Build Coastguard Worker; CHECK: load <2 x i64>, <2 x i64>* %a, align 2 53*9880d681SAndroid Build Coastguard Worker; CHECK: store <2 x i64> {{.*}}, <2 x i64>* {{.*}}, align 2 54*9880d681SAndroid Build Coastguard Worker; CHECK: ret void 55*9880d681SAndroid Build Coastguard Worker 56*9880d681SAndroid Build Coastguard Workerentry: 57*9880d681SAndroid Build Coastguard Worker %aa = alloca <2 x i64>, align 16 58*9880d681SAndroid Build Coastguard Worker %aptr = bitcast <2 x i64>* %a to i8* 59*9880d681SAndroid Build Coastguard Worker %aaptr = bitcast <2 x i64>* %aa to i8* 60*9880d681SAndroid Build Coastguard Worker call void @llvm.memcpy.p0i8.p0i8.i32(i8* %aaptr, i8* %aptr, i32 16, i32 2, i1 false) 61*9880d681SAndroid Build Coastguard Worker %bptr = bitcast i16* %b to i8* 62*9880d681SAndroid Build Coastguard Worker call void @llvm.memcpy.p0i8.p0i8.i32(i8* %bptr, i8* %aaptr, i32 16, i32 2, i1 false) 63*9880d681SAndroid Build Coastguard Worker ret void 64*9880d681SAndroid Build Coastguard Worker} 65*9880d681SAndroid Build Coastguard Worker 66*9880d681SAndroid Build Coastguard Workerdefine void @test3(i8* %x) { 67*9880d681SAndroid Build Coastguard Worker; Test that when we promote an alloca to a type with lower ABI alignment, we 68*9880d681SAndroid Build Coastguard Worker; provide the needed explicit alignment that code using the alloca may be 69*9880d681SAndroid Build Coastguard Worker; expecting. However, also check that any offset within an alloca can in turn 70*9880d681SAndroid Build Coastguard Worker; reduce the alignment. 71*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test3( 72*9880d681SAndroid Build Coastguard Worker; CHECK: alloca [22 x i8], align 8 73*9880d681SAndroid Build Coastguard Worker; CHECK: alloca [18 x i8], align 2 74*9880d681SAndroid Build Coastguard Worker; CHECK: ret void 75*9880d681SAndroid Build Coastguard Worker 76*9880d681SAndroid Build Coastguard Workerentry: 77*9880d681SAndroid Build Coastguard Worker %a = alloca { i8*, i8*, i8* } 78*9880d681SAndroid Build Coastguard Worker %b = alloca { i8*, i8*, i8* } 79*9880d681SAndroid Build Coastguard Worker %a_raw = bitcast { i8*, i8*, i8* }* %a to i8* 80*9880d681SAndroid Build Coastguard Worker call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a_raw, i8* %x, i32 22, i32 8, i1 false) 81*9880d681SAndroid Build Coastguard Worker %b_raw = bitcast { i8*, i8*, i8* }* %b to i8* 82*9880d681SAndroid Build Coastguard Worker %b_gep = getelementptr i8, i8* %b_raw, i32 6 83*9880d681SAndroid Build Coastguard Worker call void @llvm.memcpy.p0i8.p0i8.i32(i8* %b_gep, i8* %x, i32 18, i32 2, i1 false) 84*9880d681SAndroid Build Coastguard Worker ret void 85*9880d681SAndroid Build Coastguard Worker} 86*9880d681SAndroid Build Coastguard Worker 87*9880d681SAndroid Build Coastguard Workerdefine void @test5() { 88*9880d681SAndroid Build Coastguard Worker; Test that we preserve underaligned loads and stores when splitting. The use 89*9880d681SAndroid Build Coastguard Worker; of volatile in this test case is just to force the loads and stores to not be 90*9880d681SAndroid Build Coastguard Worker; split or promoted out of existence. 91*9880d681SAndroid Build Coastguard Worker; 92*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test5( 93*9880d681SAndroid Build Coastguard Worker; CHECK: alloca [9 x i8] 94*9880d681SAndroid Build Coastguard Worker; CHECK: alloca [9 x i8] 95*9880d681SAndroid Build Coastguard Worker; CHECK: store volatile double 0.0{{.*}}, double* %{{.*}}, align 1 96*9880d681SAndroid Build Coastguard Worker; CHECK: load volatile i16, i16* %{{.*}}, align 1 97*9880d681SAndroid Build Coastguard Worker; CHECK: load double, double* %{{.*}}, align 1 98*9880d681SAndroid Build Coastguard Worker; CHECK: store volatile double %{{.*}}, double* %{{.*}}, align 1 99*9880d681SAndroid Build Coastguard Worker; CHECK: load volatile i16, i16* %{{.*}}, align 1 100*9880d681SAndroid Build Coastguard Worker; CHECK: ret void 101*9880d681SAndroid Build Coastguard Worker 102*9880d681SAndroid Build Coastguard Workerentry: 103*9880d681SAndroid Build Coastguard Worker %a = alloca [18 x i8] 104*9880d681SAndroid Build Coastguard Worker %raw1 = getelementptr inbounds [18 x i8], [18 x i8]* %a, i32 0, i32 0 105*9880d681SAndroid Build Coastguard Worker %ptr1 = bitcast i8* %raw1 to double* 106*9880d681SAndroid Build Coastguard Worker store volatile double 0.0, double* %ptr1, align 1 107*9880d681SAndroid Build Coastguard Worker %weird_gep1 = getelementptr inbounds [18 x i8], [18 x i8]* %a, i32 0, i32 7 108*9880d681SAndroid Build Coastguard Worker %weird_cast1 = bitcast i8* %weird_gep1 to i16* 109*9880d681SAndroid Build Coastguard Worker %weird_load1 = load volatile i16, i16* %weird_cast1, align 1 110*9880d681SAndroid Build Coastguard Worker 111*9880d681SAndroid Build Coastguard Worker %raw2 = getelementptr inbounds [18 x i8], [18 x i8]* %a, i32 0, i32 9 112*9880d681SAndroid Build Coastguard Worker %ptr2 = bitcast i8* %raw2 to double* 113*9880d681SAndroid Build Coastguard Worker %d1 = load double, double* %ptr1, align 1 114*9880d681SAndroid Build Coastguard Worker store volatile double %d1, double* %ptr2, align 1 115*9880d681SAndroid Build Coastguard Worker %weird_gep2 = getelementptr inbounds [18 x i8], [18 x i8]* %a, i32 0, i32 16 116*9880d681SAndroid Build Coastguard Worker %weird_cast2 = bitcast i8* %weird_gep2 to i16* 117*9880d681SAndroid Build Coastguard Worker %weird_load2 = load volatile i16, i16* %weird_cast2, align 1 118*9880d681SAndroid Build Coastguard Worker 119*9880d681SAndroid Build Coastguard Worker ret void 120*9880d681SAndroid Build Coastguard Worker} 121*9880d681SAndroid Build Coastguard Worker 122*9880d681SAndroid Build Coastguard Workerdefine void @test6() { 123*9880d681SAndroid Build Coastguard Worker; Test that we promote alignment when the underlying alloca switches to one 124*9880d681SAndroid Build Coastguard Worker; that innately provides it. 125*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test6( 126*9880d681SAndroid Build Coastguard Worker; CHECK: alloca double 127*9880d681SAndroid Build Coastguard Worker; CHECK: alloca double 128*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: align 129*9880d681SAndroid Build Coastguard Worker; CHECK: ret void 130*9880d681SAndroid Build Coastguard Worker 131*9880d681SAndroid Build Coastguard Workerentry: 132*9880d681SAndroid Build Coastguard Worker %a = alloca [16 x i8] 133*9880d681SAndroid Build Coastguard Worker %raw1 = getelementptr inbounds [16 x i8], [16 x i8]* %a, i32 0, i32 0 134*9880d681SAndroid Build Coastguard Worker %ptr1 = bitcast i8* %raw1 to double* 135*9880d681SAndroid Build Coastguard Worker store volatile double 0.0, double* %ptr1, align 1 136*9880d681SAndroid Build Coastguard Worker 137*9880d681SAndroid Build Coastguard Worker %raw2 = getelementptr inbounds [16 x i8], [16 x i8]* %a, i32 0, i32 8 138*9880d681SAndroid Build Coastguard Worker %ptr2 = bitcast i8* %raw2 to double* 139*9880d681SAndroid Build Coastguard Worker %val = load double, double* %ptr1, align 1 140*9880d681SAndroid Build Coastguard Worker store volatile double %val, double* %ptr2, align 1 141*9880d681SAndroid Build Coastguard Worker 142*9880d681SAndroid Build Coastguard Worker ret void 143*9880d681SAndroid Build Coastguard Worker} 144*9880d681SAndroid Build Coastguard Worker 145*9880d681SAndroid Build Coastguard Workerdefine void @test7(i8* %out) { 146*9880d681SAndroid Build Coastguard Worker; Test that we properly compute the destination alignment when rewriting 147*9880d681SAndroid Build Coastguard Worker; memcpys as direct loads or stores. 148*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test7( 149*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: alloca 150*9880d681SAndroid Build Coastguard Worker 151*9880d681SAndroid Build Coastguard Workerentry: 152*9880d681SAndroid Build Coastguard Worker %a = alloca [16 x i8] 153*9880d681SAndroid Build Coastguard Worker %raw1 = getelementptr inbounds [16 x i8], [16 x i8]* %a, i32 0, i32 0 154*9880d681SAndroid Build Coastguard Worker %ptr1 = bitcast i8* %raw1 to double* 155*9880d681SAndroid Build Coastguard Worker %raw2 = getelementptr inbounds [16 x i8], [16 x i8]* %a, i32 0, i32 8 156*9880d681SAndroid Build Coastguard Worker %ptr2 = bitcast i8* %raw2 to double* 157*9880d681SAndroid Build Coastguard Worker 158*9880d681SAndroid Build Coastguard Worker call void @llvm.memcpy.p0i8.p0i8.i32(i8* %raw1, i8* %out, i32 16, i32 0, i1 false) 159*9880d681SAndroid Build Coastguard Worker; CHECK: %[[val2:.*]] = load double, double* %{{.*}}, align 1 160*9880d681SAndroid Build Coastguard Worker; CHECK: %[[val1:.*]] = load double, double* %{{.*}}, align 1 161*9880d681SAndroid Build Coastguard Worker 162*9880d681SAndroid Build Coastguard Worker %val1 = load double, double* %ptr2, align 1 163*9880d681SAndroid Build Coastguard Worker %val2 = load double, double* %ptr1, align 1 164*9880d681SAndroid Build Coastguard Worker 165*9880d681SAndroid Build Coastguard Worker store double %val1, double* %ptr1, align 1 166*9880d681SAndroid Build Coastguard Worker store double %val2, double* %ptr2, align 1 167*9880d681SAndroid Build Coastguard Worker 168*9880d681SAndroid Build Coastguard Worker call void @llvm.memcpy.p0i8.p0i8.i32(i8* %out, i8* %raw1, i32 16, i32 0, i1 false) 169*9880d681SAndroid Build Coastguard Worker; CHECK: store double %[[val1]], double* %{{.*}}, align 1 170*9880d681SAndroid Build Coastguard Worker; CHECK: store double %[[val2]], double* %{{.*}}, align 1 171*9880d681SAndroid Build Coastguard Worker 172*9880d681SAndroid Build Coastguard Worker ret void 173*9880d681SAndroid Build Coastguard Worker; CHECK: ret void 174*9880d681SAndroid Build Coastguard Worker} 175