1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=simplifycfg -sink-common-insts -simplifycfg-require-and-preserve-domtree=1 -S < %s | FileCheck %s 3 4define ptr @test_sink_gep(i1 %c, ptr %p) { 5; CHECK-LABEL: @test_sink_gep( 6; CHECK-NEXT: join: 7; CHECK-NEXT: [[GEP2:%.*]] = getelementptr i32, ptr [[P:%.*]], i64 1 8; CHECK-NEXT: ret ptr [[GEP2]] 9; 10 br i1 %c, label %if, label %else 11 12if: 13 %gep1 = getelementptr i32, ptr %p, i64 1 14 br label %join 15 16else: 17 %gep2 = getelementptr i32, ptr %p, i64 1 18 br label %join 19 20join: 21 %phi = phi ptr [ %gep1, %if ], [ %gep2, %else] 22 ret ptr %phi 23} 24 25define ptr @test_sink_gep_different_types(i1 %c, ptr %p) { 26; CHECK-LABEL: @test_sink_gep_different_types( 27; CHECK-NEXT: join: 28; CHECK-NEXT: [[GEP1:%.*]] = getelementptr i32, ptr [[P:%.*]], i64 1 29; CHECK-NEXT: [[GEP2:%.*]] = getelementptr i64, ptr [[P]], i64 1 30; CHECK-NEXT: [[PHI:%.*]] = select i1 [[C:%.*]], ptr [[GEP1]], ptr [[GEP2]] 31; CHECK-NEXT: ret ptr [[PHI]] 32; 33 br i1 %c, label %if, label %else 34 35if: 36 %gep1 = getelementptr i32, ptr %p, i64 1 37 br label %join 38 39else: 40 %gep2 = getelementptr i64, ptr %p, i64 1 41 br label %join 42 43join: 44 %phi = phi ptr [ %gep1, %if ], [ %gep2, %else] 45 ret ptr %phi 46} 47 48define void @test_cond_store_merge(i1 %arg, i1 %arg2, ptr %p) { 49; CHECK-LABEL: @test_cond_store_merge( 50; CHECK-NEXT: bb: 51; CHECK-NEXT: br i1 [[ARG:%.*]], label [[BB2:%.*]], label [[BB3:%.*]] 52; CHECK: bb2: 53; CHECK-NEXT: store i64 0, ptr [[P:%.*]], align 32 54; CHECK-NEXT: br label [[BB3]] 55; CHECK: bb3: 56; CHECK-NEXT: br i1 [[ARG2:%.*]], label [[BB4:%.*]], label [[BB5:%.*]] 57; CHECK: bb4: 58; CHECK-NEXT: store double 0.000000e+00, ptr [[P]], align 32 59; CHECK-NEXT: br label [[BB5]] 60; CHECK: bb5: 61; CHECK-NEXT: ret void 62; 63bb: 64 br i1 %arg, label %bb2, label %bb3 65 66bb2: ; preds = %bb 67 store i64 0, ptr %p, align 32 68 br label %bb3 69 70bb3: ; preds = %bb2, %bb 71 br i1 %arg2, label %bb4, label %bb5 72 73bb4: ; preds = %bb3 74 store double 0.000000e+00, ptr %p, align 32 75 br label %bb5 76 77bb5: ; preds = %bb4, %bb3 78 ret void 79} 80