1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes 2; RUN: opt < %s -passes=argpromotion -S | FileCheck %s 3 4target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128" 5 6%struct.ss = type { i32, i64 } 7 8define internal void @f(ptr byval(%struct.ss) align 4 %b) nounwind { 9; CHECK-LABEL: define {{[^@]+}}@f 10; CHECK-SAME: (i32 [[B_0_VAL:%.*]]) #[[ATTR0:[0-9]+]] { 11; CHECK-NEXT: entry: 12; CHECK-NEXT: [[TEMP2:%.*]] = add i32 [[B_0_VAL]], 1 13; CHECK-NEXT: ret void 14; 15entry: 16 %temp1 = load i32, ptr %b, align 4 17 %temp2 = add i32 %temp1, 1 18 store i32 %temp2, ptr %b, align 4 19 ret void 20} 21 22define internal void @g(ptr byval(%struct.ss) align 32 %b) nounwind { 23; CHECK-LABEL: define {{[^@]+}}@g 24; CHECK-SAME: (i32 [[B_0_VAL:%.*]]) #[[ATTR0]] { 25; CHECK-NEXT: entry: 26; CHECK-NEXT: [[TEMP2:%.*]] = add i32 [[B_0_VAL]], 1 27; CHECK-NEXT: ret void 28; 29entry: 30 %temp1 = load i32, ptr %b, align 4 31 %temp2 = add i32 %temp1, 1 32 store i32 %temp2, ptr %b, align 4 33 ret void 34} 35 36; Don't transform if alignment isn't specified; the actual alignment 37; is target-specific, and not exposed anywhere. 38; 39; (If we ever change byval so a missing alignment isn't legal, we can 40; just delete this test.) 41define internal void @h(ptr byval(%struct.ss) %b) nounwind { 42; CHECK-LABEL: define {{[^@]+}}@h 43; CHECK-SAME: (ptr byval([[STRUCT_SS:%.*]]) [[B:%.*]]) #[[ATTR0]] { 44; CHECK-NEXT: entry: 45; CHECK-NEXT: [[TEMP1:%.*]] = load i32, ptr [[B]], align 4 46; CHECK-NEXT: [[TEMP2:%.*]] = add i32 [[TEMP1]], 1 47; CHECK-NEXT: store i32 [[TEMP2]], ptr [[B]], align 4 48; CHECK-NEXT: ret void 49; 50entry: 51 %temp1 = load i32, ptr %b, align 4 52 %temp2 = add i32 %temp1, 1 53 store i32 %temp2, ptr %b, align 4 54 ret void 55} 56 57; Transform even if an argument is written to and then is loaded from. 58define internal void @k(ptr byval(%struct.ss) align 4 %b) nounwind { 59; CHECK-LABEL: define {{[^@]+}}@k 60; CHECK-SAME: (i32 [[B_0_VAL:%.*]]) #[[ATTR0]] { 61; CHECK-NEXT: entry: 62; CHECK-NEXT: [[TEMP2:%.*]] = add i32 [[B_0_VAL]], 1 63; CHECK-NEXT: ret void 64; 65entry: 66 %temp1 = load i32, ptr %b, align 4 67 %temp2 = add i32 %temp1, 1 68 store i32 %temp2, ptr %b, align 4 69 %temp3 = load i32, ptr %b, align 4 70 ret void 71} 72 73; Transform even if a store instruction is the single user. 74define internal void @l(ptr byval(%struct.ss) align 4 %b) nounwind { 75; CHECK-LABEL: define {{[^@]+}}@l 76; CHECK-SAME: (i32 [[B_0_VAL:%.*]]) #[[ATTR0]] { 77; CHECK-NEXT: entry: 78; CHECK-NEXT: ret void 79; 80entry: 81 store i32 1, ptr %b, align 4 82 ret void 83} 84 85; Transform all the arguments creating the required number of 'alloca's and 86; then optimize them out. 87define internal void @m(ptr byval(%struct.ss) align 4 %b, ptr byval(%struct.ss) align 4 %c) nounwind { 88; CHECK-LABEL: define {{[^@]+}}@m 89; CHECK-SAME: (i32 [[B_0_VAL:%.*]], i32 [[C_0_VAL:%.*]], i64 [[C_4_VAL:%.*]]) #[[ATTR0]] { 90; CHECK-NEXT: entry: 91; CHECK-NEXT: [[TEMP2:%.*]] = add i32 [[B_0_VAL]], 1 92; CHECK-NEXT: [[TEMP6:%.*]] = add i64 [[C_4_VAL]], 1 93; CHECK-NEXT: ret void 94; 95entry: 96 %temp1 = load i32, ptr %b, align 4 97 %temp2 = add i32 %temp1, 1 98 store i32 %temp2, ptr %b, align 4 99 100 store i32 %temp2, ptr %c, align 4 101 102 %temp4 = getelementptr %struct.ss, ptr %c, i32 0, i32 1 103 %temp5 = load i64, ptr %temp4, align 8 104 %temp6 = add i64 %temp5, 1 105 store i64 %temp6, ptr %temp4, align 8 106 107 ret void 108} 109 110define i32 @main() nounwind { 111; CHECK-LABEL: define {{[^@]+}}@main 112; CHECK-SAME: () #[[ATTR0]] { 113; CHECK-NEXT: entry: 114; CHECK-NEXT: [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 32 115; CHECK-NEXT: store i32 1, ptr [[S]], align 8 116; CHECK-NEXT: [[TEMP4:%.*]] = getelementptr [[STRUCT_SS]], ptr [[S]], i32 0, i32 1 117; CHECK-NEXT: store i64 2, ptr [[TEMP4]], align 4 118; CHECK-NEXT: [[S_VAL:%.*]] = load i32, ptr [[S]], align 4 119; CHECK-NEXT: call void @f(i32 [[S_VAL]]) 120; CHECK-NEXT: [[S_VAL1:%.*]] = load i32, ptr [[S]], align 4 121; CHECK-NEXT: call void @g(i32 [[S_VAL1]]) 122; CHECK-NEXT: call void @h(ptr byval([[STRUCT_SS]]) [[S]]) 123; CHECK-NEXT: [[S_VAL2:%.*]] = load i32, ptr [[S]], align 4 124; CHECK-NEXT: call void @k(i32 [[S_VAL2]]) 125; CHECK-NEXT: [[S_VAL3:%.*]] = load i32, ptr [[S]], align 4 126; CHECK-NEXT: call void @l(i32 [[S_VAL3]]) 127; CHECK-NEXT: [[S_VAL4:%.*]] = load i32, ptr [[S]], align 4 128; CHECK-NEXT: [[S_VAL5:%.*]] = load i32, ptr [[S]], align 4 129; CHECK-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[S]], i64 4 130; CHECK-NEXT: [[S_VAL6:%.*]] = load i64, ptr [[TMP0]], align 8 131; CHECK-NEXT: call void @m(i32 [[S_VAL4]], i32 [[S_VAL5]], i64 [[S_VAL6]]) 132; CHECK-NEXT: ret i32 0 133; 134entry: 135 %S = alloca %struct.ss, align 32 136 store i32 1, ptr %S, align 8 137 %temp4 = getelementptr %struct.ss, ptr %S, i32 0, i32 1 138 store i64 2, ptr %temp4, align 4 139 call void @f(ptr byval(%struct.ss) align 4 %S) nounwind 140 call void @g(ptr byval(%struct.ss) align 32 %S) nounwind 141 call void @h(ptr byval(%struct.ss) %S) nounwind 142 call void @k(ptr byval(%struct.ss) align 4 %S) nounwind 143 call void @l(ptr byval(%struct.ss) align 4 %S) nounwind 144 call void @m(ptr byval(%struct.ss) align 4 %S, ptr byval(%struct.ss) align 4 %S) nounwind 145 ret i32 0 146} 147