1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=sccp -S | FileCheck %s 3 4define void @shift_undef_64(ptr %p) { 5; CHECK-LABEL: @shift_undef_64( 6; CHECK-NEXT: store i64 0, ptr [[P:%.*]], align 4 7; CHECK-NEXT: store i64 -1, ptr [[P]], align 4 8; CHECK-NEXT: [[R3:%.*]] = shl nuw nsw i64 -1, 4294967298 9; CHECK-NEXT: store i64 [[R3]], ptr [[P]], align 4 10; CHECK-NEXT: ret void 11; 12 %r1 = lshr i64 -1, 4294967296 ; 2^32 13 store i64 %r1, ptr %p 14 15 %r2 = ashr i64 -1, 4294967297 ; 2^32 + 1 16 store i64 %r2, ptr %p 17 18 %r3 = shl i64 -1, 4294967298 ; 2^32 + 2 19 store i64 %r3, ptr %p 20 21 ret void 22} 23 24define void @shift_undef_65(ptr %p) { 25; CHECK-LABEL: @shift_undef_65( 26; CHECK-NEXT: store i65 0, ptr [[P:%.*]], align 4 27; CHECK-NEXT: store i65 0, ptr [[P]], align 4 28; CHECK-NEXT: [[R3:%.*]] = shl nuw nsw i65 1, -18446744073709551615 29; CHECK-NEXT: store i65 [[R3]], ptr [[P]], align 4 30; CHECK-NEXT: ret void 31; 32 %r1 = lshr i65 2, 18446744073709551617 33 store i65 %r1, ptr %p 34 35 %r2 = ashr i65 4, 18446744073709551617 36 store i65 %r2, ptr %p 37 38 %r3 = shl i65 1, 18446744073709551617 39 store i65 %r3, ptr %p 40 41 ret void 42} 43 44define void @shift_undef_256(ptr %p) { 45; CHECK-LABEL: @shift_undef_256( 46; CHECK-NEXT: store i256 0, ptr [[P:%.*]], align 4 47; CHECK-NEXT: store i256 0, ptr [[P]], align 4 48; CHECK-NEXT: [[R3:%.*]] = shl nuw nsw i256 1, 18446744073709551619 49; CHECK-NEXT: store i256 [[R3]], ptr [[P]], align 4 50; CHECK-NEXT: ret void 51; 52 %r1 = lshr i256 2, 18446744073709551617 53 store i256 %r1, ptr %p 54 55 %r2 = ashr i256 4, 18446744073709551618 56 store i256 %r2, ptr %p 57 58 %r3 = shl i256 1, 18446744073709551619 59 store i256 %r3, ptr %p 60 61 ret void 62} 63 64define void @shift_undef_511(ptr %p) { 65; CHECK-LABEL: @shift_undef_511( 66; CHECK-NEXT: store i511 0, ptr [[P:%.*]], align 4 67; CHECK-NEXT: store i511 -1, ptr [[P]], align 4 68; CHECK-NEXT: [[R3:%.*]] = shl nuw nsw i511 -3, 1208925819614629174706180 69; CHECK-NEXT: store i511 [[R3]], ptr [[P]], align 4 70; CHECK-NEXT: ret void 71; 72 %r1 = lshr i511 -1, 1208925819614629174706276 ; 2^80 + 100 73 store i511 %r1, ptr %p 74 75 %r2 = ashr i511 -2, 1208925819614629174706200 76 store i511 %r2, ptr %p 77 78 %r3 = shl i511 -3, 1208925819614629174706180 79 store i511 %r3, ptr %p 80 81 ret void 82} 83