59 lines
3.4 KiB
LLVM
59 lines
3.4 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -loop-unroll -S < %s | FileCheck %s
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define i32 @test(i32 %a, i32 %b, i32 %c) optsize {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[REF_TMP:%.*]] = alloca [3 x i32], align 4
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; CHECK-NEXT: [[TMP0:%.*]] = bitcast [3 x i32]* [[REF_TMP]] to i8*
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; CHECK-NEXT: [[ARRAYINIT_BEGIN:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 0
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; CHECK-NEXT: store i32 [[A:%.*]], i32* [[ARRAYINIT_BEGIN]], align 4
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; CHECK-NEXT: [[ARRAYINIT_ELEMENT:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 1
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; CHECK-NEXT: store i32 [[B:%.*]], i32* [[ARRAYINIT_ELEMENT]], align 4
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; CHECK-NEXT: [[ARRAYINIT_ELEMENT1:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 2
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; CHECK-NEXT: store i32 [[C:%.*]], i32* [[ARRAYINIT_ELEMENT1]], align 4
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; CHECK-NEXT: [[ADD_PTR_I_I:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 3
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; CHECK-NEXT: [[CMP_I_I_I3:%.*]] = icmp slt i32 [[A]], [[B]]
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; CHECK-NEXT: [[SPEC_SELECT_I_I4:%.*]] = select i1 [[CMP_I_I_I3]], i32* [[ARRAYINIT_ELEMENT]], i32* [[ARRAYINIT_BEGIN]]
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; CHECK-NEXT: [[INCDEC_PTR_I_I5:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 2
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[DOTPRE:%.*]] = load i32, i32* [[SPEC_SELECT_I_I4]], align 4
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; CHECK-NEXT: [[DOTPRE2:%.*]] = load i32, i32* [[INCDEC_PTR_I_I5]], align 4
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; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp slt i32 [[DOTPRE]], [[DOTPRE2]]
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; CHECK-NEXT: [[SPEC_SELECT_I_I:%.*]] = select i1 [[CMP_I_I_I]], i32* [[INCDEC_PTR_I_I5]], i32* [[SPEC_SELECT_I_I4]]
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; CHECK-NEXT: [[INCDEC_PTR_I_I:%.*]] = getelementptr inbounds i32, i32* [[INCDEC_PTR_I_I5]], i64 1
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; CHECK-NEXT: [[TMP1:%.*]] = load i32, i32* [[SPEC_SELECT_I_I]], align 4
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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entry:
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%ref.tmp = alloca [3 x i32], align 4
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%0 = bitcast [3 x i32]* %ref.tmp to i8*
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%arrayinit.begin = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 0
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store i32 %a, i32* %arrayinit.begin, align 4
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%arrayinit.element = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 1
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store i32 %b, i32* %arrayinit.element, align 4
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%arrayinit.element1 = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 2
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store i32 %c, i32* %arrayinit.element1, align 4
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%add.ptr.i.i = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 3
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%cmp.i.i.i3 = icmp slt i32 %a, %b
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%spec.select.i.i4 = select i1 %cmp.i.i.i3, i32* %arrayinit.element, i32* %arrayinit.begin
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%incdec.ptr.i.i5 = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 2
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br label %loop
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loop: ; preds = %entry, %loop
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%incdec.ptr.i.i7 = phi i32* [ %incdec.ptr.i.i5, %entry ], [ %incdec.ptr.i.i, %loop ]
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%spec.select.i.i6 = phi i32* [ %spec.select.i.i4, %entry ], [ %spec.select.i.i, %loop ]
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%.pre = load i32, i32* %spec.select.i.i6, align 4
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%.pre2 = load i32, i32* %incdec.ptr.i.i7, align 4
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%cmp.i.i.i = icmp slt i32 %.pre, %.pre2
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%spec.select.i.i = select i1 %cmp.i.i.i, i32* %incdec.ptr.i.i7, i32* %spec.select.i.i6
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%incdec.ptr.i.i = getelementptr inbounds i32, i32* %incdec.ptr.i.i7, i64 1
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%cmp1.i.i = icmp eq i32* %incdec.ptr.i.i, %add.ptr.i.i
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br i1 %cmp1.i.i, label %exit, label %loop
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exit: ; preds = %loop
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%1 = load i32, i32* %spec.select.i.i, align 4
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ret i32 %1
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}
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