1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -loop-unroll -S < %s | FileCheck %s 3 4define i32 @test(i32 %a, i32 %b, i32 %c) optsize { 5; CHECK-LABEL: @test( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: [[REF_TMP:%.*]] = alloca [3 x i32], align 4 8; CHECK-NEXT: [[TMP0:%.*]] = bitcast [3 x i32]* [[REF_TMP]] to i8* 9; CHECK-NEXT: [[ARRAYINIT_BEGIN:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 0 10; CHECK-NEXT: store i32 [[A:%.*]], i32* [[ARRAYINIT_BEGIN]], align 4 11; CHECK-NEXT: [[ARRAYINIT_ELEMENT:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 1 12; CHECK-NEXT: store i32 [[B:%.*]], i32* [[ARRAYINIT_ELEMENT]], align 4 13; CHECK-NEXT: [[ARRAYINIT_ELEMENT1:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 2 14; CHECK-NEXT: store i32 [[C:%.*]], i32* [[ARRAYINIT_ELEMENT1]], align 4 15; CHECK-NEXT: [[ADD_PTR_I_I:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 3 16; CHECK-NEXT: [[CMP_I_I_I3:%.*]] = icmp slt i32 [[A]], [[B]] 17; CHECK-NEXT: [[SPEC_SELECT_I_I4:%.*]] = select i1 [[CMP_I_I_I3]], i32* [[ARRAYINIT_ELEMENT]], i32* [[ARRAYINIT_BEGIN]] 18; CHECK-NEXT: [[INCDEC_PTR_I_I5:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[REF_TMP]], i64 0, i64 2 19; CHECK-NEXT: br label [[LOOP:%.*]] 20; CHECK: loop: 21; CHECK-NEXT: [[DOTPRE:%.*]] = load i32, i32* [[SPEC_SELECT_I_I4]], align 4 22; CHECK-NEXT: [[DOTPRE2:%.*]] = load i32, i32* [[INCDEC_PTR_I_I5]], align 4 23; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp slt i32 [[DOTPRE]], [[DOTPRE2]] 24; CHECK-NEXT: [[SPEC_SELECT_I_I:%.*]] = select i1 [[CMP_I_I_I]], i32* [[INCDEC_PTR_I_I5]], i32* [[SPEC_SELECT_I_I4]] 25; CHECK-NEXT: [[INCDEC_PTR_I_I:%.*]] = getelementptr inbounds i32, i32* [[INCDEC_PTR_I_I5]], i64 1 26; CHECK-NEXT: [[TMP1:%.*]] = load i32, i32* [[SPEC_SELECT_I_I]], align 4 27; CHECK-NEXT: ret i32 [[TMP1]] 28; 29entry: 30 %ref.tmp = alloca [3 x i32], align 4 31 %0 = bitcast [3 x i32]* %ref.tmp to i8* 32 %arrayinit.begin = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 0 33 store i32 %a, i32* %arrayinit.begin, align 4 34 %arrayinit.element = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 1 35 store i32 %b, i32* %arrayinit.element, align 4 36 %arrayinit.element1 = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 2 37 store i32 %c, i32* %arrayinit.element1, align 4 38 %add.ptr.i.i = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 3 39 %cmp.i.i.i3 = icmp slt i32 %a, %b 40 %spec.select.i.i4 = select i1 %cmp.i.i.i3, i32* %arrayinit.element, i32* %arrayinit.begin 41 %incdec.ptr.i.i5 = getelementptr inbounds [3 x i32], [3 x i32]* %ref.tmp, i64 0, i64 2 42 br label %loop 43 44loop: ; preds = %entry, %loop 45 %incdec.ptr.i.i7 = phi i32* [ %incdec.ptr.i.i5, %entry ], [ %incdec.ptr.i.i, %loop ] 46 %spec.select.i.i6 = phi i32* [ %spec.select.i.i4, %entry ], [ %spec.select.i.i, %loop ] 47 %.pre = load i32, i32* %spec.select.i.i6, align 4 48 %.pre2 = load i32, i32* %incdec.ptr.i.i7, align 4 49 %cmp.i.i.i = icmp slt i32 %.pre, %.pre2 50 %spec.select.i.i = select i1 %cmp.i.i.i, i32* %incdec.ptr.i.i7, i32* %spec.select.i.i6 51 %incdec.ptr.i.i = getelementptr inbounds i32, i32* %incdec.ptr.i.i7, i64 1 52 %cmp1.i.i = icmp eq i32* %incdec.ptr.i.i, %add.ptr.i.i 53 br i1 %cmp1.i.i, label %exit, label %loop 54 55exit: ; preds = %loop 56 %1 = load i32, i32* %spec.select.i.i, align 4 57 ret i32 %1 58} 59