80 lines
2.6 KiB
LLVM
80 lines
2.6 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -ipsccp -S %s | FileCheck %s
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declare noalias i8* @malloc(i64)
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; Make sure we can eliminate `%tmp17 = icmp ult i32 %tmp10, 3`.
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declare void @use(i1)
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define internal i32* @spam(i32* %arg) {
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; CHECK-LABEL: @spam(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[TMP:%.*]] = call i8* @malloc(i64 10368)
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; CHECK-NEXT: [[TMP1:%.*]] = bitcast i8* [[TMP]] to i32*
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds i32, i32* [[ARG:%.*]], i32 0
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; CHECK-NEXT: [[TMP5:%.*]] = load i32, i32* [[TMP4]], align 8
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; CHECK-NEXT: [[TMP6:%.*]] = add i32 [[TMP5]], 1
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; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, i32* [[ARG]], i32 1
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; CHECK-NEXT: [[TMP10:%.*]] = icmp ne i32* [[TMP7]], null
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; CHECK-NEXT: br i1 [[TMP10]], label [[BB17:%.*]], label [[BB13:%.*]]
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; CHECK: bb13:
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; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds i32, i32* [[ARG]], i32 2
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; CHECK-NEXT: [[TMP15:%.*]] = load i32, i32* [[TMP14]], align 8
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; CHECK-NEXT: [[TMP16:%.*]] = add i32 [[TMP15]], 1
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; CHECK-NEXT: br label [[BB30:%.*]]
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; CHECK: bb17:
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; CHECK-NEXT: [[TMP18:%.*]] = icmp eq i32 [[TMP6]], [[TMP5]]
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; CHECK-NEXT: [[TMP19:%.*]] = getelementptr inbounds i32, i32* [[ARG]], i32 3
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; CHECK-NEXT: [[TMP20:%.*]] = load i32, i32* [[TMP19]], align 8
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; CHECK-NEXT: br i1 [[TMP18]], label [[BB30]], label [[BB13]]
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; CHECK: bb30:
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; CHECK-NEXT: ret i32* [[TMP1]]
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;
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bb:
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%tmp = call i8* @malloc(i64 10368)
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%tmp1 = bitcast i8* %tmp to i32*
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%tmp4 = getelementptr inbounds i32, i32* %arg, i32 0
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%tmp5 = load i32, i32* %tmp4, align 8
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%tmp6 = add i32 %tmp5, 1
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%tmp7 = getelementptr inbounds i32, i32* %arg, i32 1
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%tmp10 = icmp ne i32* %tmp7, null
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br i1 %tmp10, label %bb17, label %bb13
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bb13:
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%tmp14 = getelementptr inbounds i32, i32* %arg, i32 2
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%tmp15 = load i32, i32* %tmp14, align 8
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%tmp16 = add i32 %tmp15, 1
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br label %bb30
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bb17:
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%tmp18 = icmp eq i32 %tmp6, %tmp5
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%tmp19 = getelementptr inbounds i32, i32* %arg, i32 3
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%tmp20 = load i32, i32* %tmp19, align 8
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br i1 %tmp18, label %bb30, label %bb13
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bb30:
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ret i32* %tmp1
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}
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define void @spam.1(i32* %arg) {
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bb:
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%tmp = alloca i8*, align 8
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%tmp4 = call i32* @spam(i32* %arg)
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br label %bb6
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bb6: ; preds = %bb5
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%tmp7 = getelementptr inbounds i32, i32* %tmp4, i32 1
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%tmp10 = load i32, i32* %tmp7, align 8
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%tmp11 = icmp ne i32 %tmp10, 0
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br i1 %tmp11, label %bb6, label %bb15
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bb15: ; preds = %bb12
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%tmp17 = icmp ult i32 %tmp10, 3
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call void @use(i1 %tmp17)
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br i1 %tmp17, label %bb6, label %bb24
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bb24:
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ret void
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}
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