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