1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -O1 < %s | FileCheck %s 3; RUN: opt -S -O2 < %s | FileCheck %s 4; RUN: opt -S -O3 < %s | FileCheck %s 5 6define void @swap(ptr %p1, ptr %p2) { 7; CHECK-LABEL: @swap( 8; CHECK-NEXT: [[TMP1:%.*]] = load i64, ptr [[P1:%.*]], align 1 9; CHECK-NEXT: [[TMP2:%.*]] = load i64, ptr [[P2:%.*]], align 1 10; CHECK-NEXT: store i64 [[TMP2]], ptr [[P1]], align 1 11; CHECK-NEXT: store i64 [[TMP1]], ptr [[P2]], align 1 12; CHECK-NEXT: ret void 13; 14 %tmp = alloca [2 x i32] 15 call void @llvm.memcpy.p0.p0.i64(ptr %tmp, ptr %p1, i64 8, i1 false) 16 call void @llvm.memcpy.p0.p0.i64(ptr %p1, ptr %p2, i64 8, i1 false) 17 call void @llvm.memcpy.p0.p0.i64(ptr %p2, ptr %tmp, i64 8, i1 false) 18 ret void 19} 20 21define i32 @test(i32 %n) { 22; CHECK-LABEL: @test( 23; CHECK-NEXT: br label [[LOOP:%.*]] 24; CHECK: loop: 25; CHECK-NEXT: [[P1_SROA_5_0:%.*]] = phi i32 [ 1, [[TMP0:%.*]] ], [ [[V2_NEXT:%.*]], [[LOOP]] ] 26; CHECK-NEXT: [[P1_SROA_0_0:%.*]] = phi i32 [ 0, [[TMP0]] ], [ [[V1_INC:%.*]], [[LOOP]] ] 27; CHECK-NEXT: [[V1_INC]] = add i32 [[P1_SROA_0_0]], 1 28; CHECK-NEXT: [[V2_NEXT]] = shl i32 [[P1_SROA_5_0]], 1 29; CHECK-NEXT: [[C:%.*]] = icmp eq i32 [[V1_INC]], [[N:%.*]] 30; CHECK-NEXT: br i1 [[C]], label [[EXIT:%.*]], label [[LOOP]] 31; CHECK: exit: 32; CHECK-NEXT: ret i32 [[V2_NEXT]] 33; 34 %p1 = alloca [2 x i32] 35 %p2 = alloca [2 x i32] 36 %p1.2 = getelementptr i32, ptr %p1, i64 1 37 %p2.2 = getelementptr i32, ptr %p2, i64 1 38 store i32 0, ptr %p1 39 store i32 1, ptr %p1.2 40 br label %loop 41 42loop: 43 %v1 = load i32, ptr %p1 44 %v1.inc = add i32 %v1, 1 45 store i32 %v1.inc, ptr %p1 46 %v2 = load i32, ptr %p1.2 47 %v2.next = shl i32 %v2, 1 48 store i32 %v2.next, ptr %p1.2 49 %c = icmp eq i32 %v1.inc, %n 50 br i1 %c, label %exit, label %loop 51 52exit: 53 call void @swap(ptr %p1, ptr %p2) 54 %res = load i32, ptr %p2.2 55 ret i32 %res 56} 57 58declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1) 59