forked from OSchip/llvm-project
126 lines
4.9 KiB
LLVM
126 lines
4.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -ipsccp -S | FileCheck %s
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; RUN: opt < %s -passes=ipsccp -S | FileCheck %s
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; Test for PR39772
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%struct.Node = type { %struct.Node*, %struct.Node*, i32 }
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define i32 @check(%struct.Node* %node) {
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; CHECK-LABEL: define i32 @check(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq %struct.Node* [[NODE:%.*]], null
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; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: br label [[CLEANUP:%.*]]
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; CHECK: if.end:
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; CHECK-NEXT: [[LEFT:%.*]] = getelementptr inbounds [[STRUCT_NODE:%.*]], %struct.Node* [[NODE]], i32 0, i32 0
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; CHECK-NEXT: [[TMP0:%.*]] = load %struct.Node*, %struct.Node** [[LEFT]]
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @check(%struct.Node* [[TMP0]])
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; CHECK-NEXT: [[RIGHT:%.*]] = getelementptr inbounds [[STRUCT_NODE]], %struct.Node* [[NODE]], i32 0, i32 1
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; CHECK-NEXT: [[TMP1:%.*]] = load %struct.Node*, %struct.Node** [[RIGHT]]
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; CHECK-NEXT: [[CALL1:%.*]] = call i32 @check(%struct.Node* [[TMP1]])
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; CHECK-NEXT: [[TMP2:%.*]] = load %struct.Node*, %struct.Node** [[RIGHT]]
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; CHECK-NEXT: [[HEIGHT:%.*]] = getelementptr inbounds [[STRUCT_NODE]], %struct.Node* [[TMP2]], i32 0, i32 2
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; CHECK-NEXT: [[TMP3:%.*]] = load i32, i32* [[HEIGHT]]
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; CHECK-NEXT: [[CMP3:%.*]] = icmp ne i32 [[TMP3]], [[CALL1]]
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; CHECK-NEXT: br i1 [[CMP3]], label [[IF_THEN4:%.*]], label [[IF_END5:%.*]]
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; CHECK: if.then4:
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; CHECK-NEXT: unreachable
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; CHECK: if.end5:
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; CHECK-NEXT: [[CMP6:%.*]] = icmp sgt i32 [[CALL]], [[CALL1]]
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; CHECK-NEXT: br i1 [[CMP6]], label [[IF_THEN7:%.*]], label [[IF_ELSE:%.*]]
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; CHECK: if.then7:
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; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[CALL]], 1
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; CHECK-NEXT: br label [[CLEANUP]]
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; CHECK: if.else:
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; CHECK-NEXT: [[ADD8:%.*]] = add nsw i32 [[CALL1]], 1
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; CHECK-NEXT: br label [[CLEANUP]]
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; CHECK: cleanup:
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; CHECK-NEXT: [[RETVAL_0:%.*]] = phi i32 [ 0, [[IF_THEN]] ], [ [[ADD]], [[IF_THEN7]] ], [ [[ADD8]], [[IF_ELSE]] ]
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; CHECK-NEXT: ret i32 [[RETVAL_0]]
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;
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entry:
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%cmp = icmp eq %struct.Node* %node, null
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br i1 %cmp, label %if.then, label %if.end
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if.then: ; preds = %entry
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br label %cleanup
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if.end: ; preds = %entry
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%left = getelementptr inbounds %struct.Node, %struct.Node* %node, i32 0, i32 0
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%0 = load %struct.Node*, %struct.Node** %left
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%call = call i32 @check(%struct.Node* %0)
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%right = getelementptr inbounds %struct.Node, %struct.Node* %node, i32 0, i32 1
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%1 = load %struct.Node*, %struct.Node** %right
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%call1 = call i32 @check(%struct.Node* %1)
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%2 = load %struct.Node*, %struct.Node** %right
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%height = getelementptr inbounds %struct.Node, %struct.Node* %2, i32 0, i32 2
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%3 = load i32, i32* %height
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%cmp3 = icmp ne i32 %3, %call1
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br i1 %cmp3, label %if.then4, label %if.end5
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if.then4: ; preds = %if.end
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unreachable
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if.end5: ; preds = %if.end
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%cmp6 = icmp sgt i32 %call, %call1
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br i1 %cmp6, label %if.then7, label %if.else
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if.then7: ; preds = %if.end5
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%add = add nsw i32 %call, 1
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br label %cleanup
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if.else: ; preds = %if.end5
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%add8 = add nsw i32 %call1, 1
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br label %cleanup
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cleanup: ; preds = %if.else, %if.then7, %if.then
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%retval.0 = phi i32 [ 0, %if.then ], [ %add, %if.then7 ], [ %add8, %if.else ]
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ret i32 %retval.0
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}
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declare i8* @test2_callee(i32, i32)
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define void @test2() {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[FOR_COND:%.*]]
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; CHECK: for.cond:
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: br label [[IF_ELSE33:%.*]]
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; CHECK: if.else33:
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; CHECK-NEXT: br label [[IF_THEN38:%.*]]
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; CHECK: if.then38:
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; CHECK-NEXT: [[CALL42:%.*]] = call i8* @test2_callee(i32 0, i32 0)
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; CHECK-NEXT: unreachable
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;
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc46, %entry
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%op.0 = phi i32 [ 0, %entry ], [ 0, %for.inc46 ]
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br label %for.body
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for.body: ; preds = %for.cond
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%cmp24 = icmp eq i32 %op.0, 38
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br i1 %cmp24, label %if.then26, label %if.else33
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if.then26: ; preds = %for.body
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unreachable
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if.else33: ; preds = %for.body
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%cmp34 = icmp ne i32 %op.0, 80
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%cmp36 = icmp ne i32 %op.0, 81
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%or.cond = and i1 %cmp34, %cmp36
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br i1 %or.cond, label %if.then38, label %for.inc46
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if.then38: ; preds = %if.else33
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%call42 = call i8* @test2_callee(i32 %op.0, i32 0)
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unreachable
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for.inc46: ; preds = %if.else33
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br label %for.cond
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}
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