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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -S -passes=mergeicmps -verify-dom-info | FileCheck %s3target triple = "x86_64"4 5%Triple = type { i32, i32, i32, i32 }6 7@g = external global i328 9; bb1 references a gep introduced in bb0. The gep must remain available after10; the merge.11define i1 @bug(ptr nonnull dereferenceable(16) %lhs, ptr nonnull dereferenceable(16) %rhs) nofree nosync {12; CHECK-LABEL: @bug(13; CHECK-NEXT: bb0:14; CHECK-NEXT: [[L0:%.*]] = load i32, ptr [[LHS:%.*]], align 415; CHECK-NEXT: [[R0:%.*]] = load i32, ptr [[RHS:%.*]], align 416; CHECK-NEXT: store i32 1, ptr @g, align 417; CHECK-NEXT: [[CMP0:%.*]] = icmp eq i32 [[L0]], [[R0]]18; CHECK-NEXT: br i1 [[CMP0]], label %"bb1+bb2", label [[FINAL:%.*]]19; CHECK: "bb1+bb2":20; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[TRIPLE:%.*]], ptr [[LHS]], i64 0, i32 221; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr [[RHS]], i64 222; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(ptr [[TMP0]], ptr [[TMP1]], i64 8)23; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 024; CHECK-NEXT: br label [[FINAL]]25; CHECK: final:26; CHECK-NEXT: [[RET:%.*]] = phi i1 [ false, [[BB0:%.*]] ], [ [[TMP2]], %"bb1+bb2" ]27; CHECK-NEXT: ret i1 [[RET]]28;29bb0:30 %l0 = load i32, ptr %lhs, align 431 %r0 = load i32, ptr %rhs, align 432 store i32 1, ptr @g33 %cmp0 = icmp eq i32 %l0, %r034 br i1 %cmp0, label %bb1, label %final35 36bb1: ; preds = %bb037 %l1_addr = getelementptr inbounds %Triple, ptr %lhs, i64 0, i32 238 %l1 = load i32, ptr %l1_addr, align 439 %r1_addr = getelementptr inbounds i32, ptr %rhs, i64 240 %r1 = load i32, ptr %r1_addr, align 441 %cmp1 = icmp eq i32 %l1, %r142 br i1 %cmp1, label %bb2, label %final43 44bb2: ; preds = %bb145 %l2_addr = getelementptr inbounds %Triple, ptr %lhs, i64 0, i32 346 %l2 = load i32, ptr %l2_addr, align 447 %r2_addr = getelementptr inbounds i32, ptr %rhs, i64 348 %r2 = load i32, ptr %r2_addr, align 449 %cmp2 = icmp eq i32 %l2, %r250 br label %final51 52final: ; preds = %bb2, %bb1, %bb053 %ret = phi i1 [ false, %bb0 ], [ false, %bb1 ], [ %cmp2, %bb2 ]54 ret i1 %ret55}56 57