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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 62; RUN: opt -passes=gvn -S < %s | FileCheck %s3 4@y = external global i325@z = external global i326 7; Function Attrs: nounwind ssp uwtable8define void @foo(i32 %x) {9; CHECK-LABEL: define void @foo(10; CHECK-SAME: i32 [[X:%.*]]) {11; CHECK-NEXT: [[DOTPRE:%.*]] = load i32, ptr @y, align 412; CHECK-NEXT: br i1 false, label %[[IF_THEN:.*]], label %[[ENTRY_IF_END_CRIT_EDGE:.*]]13; CHECK: [[ENTRY_IF_END_CRIT_EDGE]]:14; CHECK-NEXT: br label %[[IF_END:.*]]15; CHECK: [[IF_THEN]]:16; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[X]], 317; CHECK-NEXT: store i32 [[ADD]], ptr @y, align 418; CHECK-NEXT: br label %[[IF_END]]19; CHECK: [[IF_END]]:20; CHECK-NEXT: tail call void @bar(i32 [[DOTPRE]])21; CHECK-NEXT: ret void22;23 24 %t = sub i32 %x, %x25 %.pre = load i32, ptr @y, align 426 %cmp = icmp sgt i32 %t, 227 br i1 %cmp, label %if.then, label %entry.if.end_crit_edge28 29entry.if.end_crit_edge: ; preds = %entry30 br label %if.end31 32if.then: ; preds = %entry33 %add = add nsw i32 %x, 334 store i32 %add, ptr @y, align 435 br label %if.end36 37if.end: ; preds = %entry.if.end_crit_edge, %if.then38 %1 = phi i32 [ %.pre, %entry.if.end_crit_edge ], [ %add, %if.then ]39 tail call void @bar(i32 %1)40 ret void41}42 43define void @foo2(i32 %x) {44; CHECK-LABEL: define void @foo2(45; CHECK-SAME: i32 [[X:%.*]]) {46; CHECK-NEXT: [[ENTRY:.*:]]47; CHECK-NEXT: [[DOTPRE:%.*]] = load i32, ptr @y, align 448; CHECK-NEXT: br i1 false, label %[[IF_THEN:.*]], label %[[IF_ELSE:.*]]49; CHECK: [[IF_THEN]]:50; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[X]], 351; CHECK-NEXT: store i32 [[ADD]], ptr @y, align 452; CHECK-NEXT: br label %[[IF_END:.*]]53; CHECK: [[IF_ELSE]]:54; CHECK-NEXT: store i32 1, ptr @z, align 455; CHECK-NEXT: br label %[[IF_END]]56; CHECK: [[IF_END]]:57; CHECK-NEXT: tail call void @bar(i32 [[DOTPRE]])58; CHECK-NEXT: ret void59;60entry:61 %t = sub i32 %x, %x62 %.pre = load i32, ptr @y, align 463 %cmp = icmp sgt i32 %t, 264 br i1 %cmp, label %if.then, label %if.else65 66if.then: ; preds = %entry67 %add = add nsw i32 %x, 368 store i32 %add, ptr @y, align 469 br label %if.end70 71if.else: ; preds = %entry72 store i32 1, ptr @z, align 473 br label %if.end74 75if.end: ; preds = %if.else, %if.then76 %0 = phi i32 [ %.pre, %if.else ], [ %add, %if.then ]77 tail call void @bar(i32 %0)78 ret void79}80 81declare void @bar(i32)82 83define void @indirectbr_could_not_split() {84; CHECK-LABEL: define void @indirectbr_could_not_split() {85; CHECK-NEXT: [[ENTRY:.*:]]86; CHECK-NEXT: br i1 false, label %[[IBR:.*]], label %[[EXIT:.*]]87; CHECK: [[IBR]]:88; CHECK-NEXT: indirectbr ptr null, [label %[[EXIT]], label %exit]89; CHECK: [[EXIT]]:90; CHECK-NEXT: ret void91;92entry:93 br i1 false, label %ibr, label %exit94 95ibr:96 indirectbr ptr null, [label %exit, label %exit]97 98exit:99 ret void100}101