123 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=gvn -S < %s | FileCheck %s3 4; Memdep had funny bug related to invariant.groups - because it did not5; invalidated cache, in some very rare cases it was possible to show memory6; dependence of the instruction that was deleted, but because other instruction7; took it's place it resulted in call to vtable! Removing any of the branch8; hides the bug.9 10target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"11target triple = "x86_64-grtev4-linux-gnu"12 13%0 = type { ptr, %1 }14%1 = type { %2 }15%2 = type { %3 }16%3 = type { %4, i64, %5 }17%4 = type { ptr }18%5 = type { i64, [8 x i8] }19 20define void @fail(ptr noalias sret(i1) %arg, ptr %arg1, ptr %arg2, ptr %arg3, i1 %arg4) local_unnamed_addr {21; CHECK-LABEL: @fail(22; CHECK-NEXT: bb:23; CHECK-NEXT: [[I4:%.*]] = load ptr, ptr [[ARG1:%.*]], align 8, !invariant.group [[META6:![0-9]+]]24; CHECK-NEXT: [[I5:%.*]] = getelementptr inbounds ptr, ptr [[I4]], i64 625; CHECK-NEXT: [[I6:%.*]] = load ptr, ptr [[I5]], align 8, !invariant.load [[META6]]26; CHECK-NEXT: [[I7:%.*]] = tail call i64 [[I6]](ptr [[ARG1]])27; CHECK-NEXT: [[I9:%.*]] = load ptr, ptr [[ARG2:%.*]], align 828; CHECK-NEXT: store i8 0, ptr [[I9]], align 129; CHECK-NEXT: br i1 [[ARG4:%.*]], label [[BB10:%.*]], label [[BB29:%.*]]30; CHECK: bb10:31; CHECK-NEXT: [[I14_PHI_TRANS_INSERT:%.*]] = getelementptr inbounds ptr, ptr [[I4]], i64 2232; CHECK-NEXT: [[I15_PRE:%.*]] = load ptr, ptr [[I14_PHI_TRANS_INSERT]], align 8, !invariant.load [[META6]]33; CHECK-NEXT: br label [[BB12:%.*]]34; CHECK: bb12:35; CHECK-NEXT: [[I16:%.*]] = call i64 [[I15_PRE]](ptr nonnull [[ARG1]], ptr null, i64 0)36; CHECK-NEXT: br i1 true, label [[BB28:%.*]], label [[BB17:%.*]]37; CHECK: bb17:38; CHECK-NEXT: br i1 true, label [[BB18:%.*]], label [[BB21:%.*]]39; CHECK: bb18:40; CHECK-NEXT: br label [[BB28]]41; CHECK: bb21:42; CHECK-NEXT: br i1 true, label [[BB25:%.*]], label [[BB26:%.*]]43; CHECK: bb25:44; CHECK-NEXT: br label [[BB28]]45; CHECK: bb26:46; CHECK-NEXT: br label [[BB28]]47; CHECK: bb28:48; CHECK-NEXT: br i1 true, label [[BB12]], label [[BB28_BB29_CRIT_EDGE:%.*]]49; CHECK: bb28.bb29_crit_edge:50; CHECK-NEXT: br label [[BB29]]51; CHECK: bb29:52; CHECK-NEXT: ret void53;54bb:55 %i4 = load ptr, ptr %arg1, align 8, !invariant.group !656 %i5 = getelementptr inbounds ptr, ptr %i4, i64 657 %i6 = load ptr, ptr %i5, align 8, !invariant.load !658 %i7 = tail call i64 %i6(ptr %arg1)59 %i9 = load ptr, ptr %arg2, align 860 store i8 0, ptr %i9, align 161 br i1 %arg4, label %bb10, label %bb2962 63bb10: ; preds = %bb64 br label %bb1265 66bb12: ; preds = %bb28, %bb1067 %i13 = load ptr, ptr %arg1, align 8, !invariant.group !668 %i14 = getelementptr inbounds ptr, ptr %i13, i64 2269 %i15 = load ptr, ptr %i14, align 8, !invariant.load !670 %i16 = call i64 %i15(ptr nonnull %arg1, ptr null, i64 0)71 br i1 %arg4, label %bb28, label %bb1772 73bb17: ; preds = %bb1274 br i1 %arg4, label %bb18, label %bb2175 76bb18: ; preds = %bb1777 br label %bb1978 79bb19: ; preds = %bb1880 br label %bb2081 82bb20: ; preds = %bb1983 br label %bb2884 85bb21: ; preds = %bb1786 br label %bb2287 88bb22: ; preds = %bb2189 br label %bb2390 91bb23: ; preds = %bb2292 br label %bb2493 94bb24: ; preds = %bb2395 br i1 %arg4, label %bb25, label %bb2696 97bb25: ; preds = %bb2498 br label %bb2899 100bb26: ; preds = %bb24101 br label %bb27102 103bb27: ; preds = %bb26104 br label %bb28105 106bb28: ; preds = %bb27, %bb25, %bb20, %bb12107 br i1 %arg4, label %bb12, label %bb29108 109bb29: ; preds = %bb28, %bb110 ret void111}112 113!llvm.linker.options = !{}114!llvm.module.flags = !{!0, !1, !3, !4, !5}115 116!0 = !{i32 1, !"StrictVTablePointers", i32 1}117!1 = !{i32 3, !"StrictVTablePointersRequirement", !2}118!2 = !{!"StrictVTablePointers", i32 1}119!3 = !{i32 1, !"wchar_size", i32 4}120!4 = !{i32 8, !"PIC Level", i32 2}121!5 = !{i32 7, !"PIE Level", i32 2}122!6 = !{}123