1*e949b54aSFlorian Hahn; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2*e949b54aSFlorian Hahn; RUN: opt -passes=loop-load-elim -S %s | FileCheck %s 3*e949b54aSFlorian Hahn 4*e949b54aSFlorian Hahntarget datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 5*e949b54aSFlorian Hahn 6*e949b54aSFlorian Hahndefine void @f(ptr %A, ptr %B, ptr %C, i64 %N) { 7*e949b54aSFlorian Hahn; CHECK-LABEL: define void @f( 8*e949b54aSFlorian Hahn; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], i64 [[N:%.*]]) { 9*e949b54aSFlorian Hahn; CHECK-NEXT: [[FOR_BODY_LVER_CHECK:.*]]: 10*e949b54aSFlorian Hahn; CHECK-NEXT: br label %[[FOR_BODY:.*]] 11*e949b54aSFlorian Hahn; CHECK: [[FOR_BODY]]: 12*e949b54aSFlorian Hahn; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, %[[FOR_BODY_LVER_CHECK]] ], [ [[INDVARS_IV_NEXT:%.*]], %[[LATCH:.*]] ] 13*e949b54aSFlorian Hahn; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 14*e949b54aSFlorian Hahn; CHECK-NEXT: [[AIDX_NEXT:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV_NEXT]] 15*e949b54aSFlorian Hahn; CHECK-NEXT: [[BIDX:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[INDVARS_IV]] 16*e949b54aSFlorian Hahn; CHECK-NEXT: [[CIDX:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[INDVARS_IV]] 17*e949b54aSFlorian Hahn; CHECK-NEXT: [[AIDX:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV]] 18*e949b54aSFlorian Hahn; CHECK-NEXT: [[B:%.*]] = load i32, ptr [[BIDX]], align 4 19*e949b54aSFlorian Hahn; CHECK-NEXT: [[UNCOUNTABLE_C:%.*]] = icmp eq i32 [[B]], 10 20*e949b54aSFlorian Hahn; CHECK-NEXT: br i1 [[UNCOUNTABLE_C]], label %[[LATCH]], label %[[FOR_END:.*]] 21*e949b54aSFlorian Hahn; CHECK: [[LATCH]]: 22*e949b54aSFlorian Hahn; CHECK-NEXT: [[A_P1:%.*]] = add i32 [[B]], 2 23*e949b54aSFlorian Hahn; CHECK-NEXT: store i32 [[A_P1]], ptr [[AIDX_NEXT]], align 4 24*e949b54aSFlorian Hahn; CHECK-NEXT: [[A:%.*]] = load i32, ptr [[AIDX]], align 1 25*e949b54aSFlorian Hahn; CHECK-NEXT: [[C:%.*]] = mul i32 [[A]], 2 26*e949b54aSFlorian Hahn; CHECK-NEXT: store i32 [[C]], ptr [[CIDX]], align 4 27*e949b54aSFlorian Hahn; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N]] 28*e949b54aSFlorian Hahn; CHECK-NEXT: br i1 [[EXITCOND]], label %[[FOR_END]], label %[[FOR_BODY]] 29*e949b54aSFlorian Hahn; CHECK: [[FOR_END]]: 30*e949b54aSFlorian Hahn; CHECK-NEXT: ret void 31*e949b54aSFlorian Hahn; 32*e949b54aSFlorian Hahnentry: 33*e949b54aSFlorian Hahn br label %for.body 34*e949b54aSFlorian Hahn 35*e949b54aSFlorian Hahnfor.body: ; preds = %for.body, %entry 36*e949b54aSFlorian Hahn %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %latch ] 37*e949b54aSFlorian Hahn %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 38*e949b54aSFlorian Hahn 39*e949b54aSFlorian Hahn %Aidx_next = getelementptr inbounds i32, ptr %A, i64 %indvars.iv.next 40*e949b54aSFlorian Hahn %Bidx = getelementptr inbounds i32, ptr %B, i64 %indvars.iv 41*e949b54aSFlorian Hahn %Cidx = getelementptr inbounds i32, ptr %C, i64 %indvars.iv 42*e949b54aSFlorian Hahn %Aidx = getelementptr inbounds i32, ptr %A, i64 %indvars.iv 43*e949b54aSFlorian Hahn 44*e949b54aSFlorian Hahn %b = load i32, ptr %Bidx, align 4 45*e949b54aSFlorian Hahn %uncountable.c = icmp eq i32 %b, 10 46*e949b54aSFlorian Hahn br i1 %uncountable.c, label %latch, label %for.end 47*e949b54aSFlorian Hahn 48*e949b54aSFlorian Hahnlatch: 49*e949b54aSFlorian Hahn %a_p1 = add i32 %b, 2 50*e949b54aSFlorian Hahn store i32 %a_p1, ptr %Aidx_next, align 4 51*e949b54aSFlorian Hahn 52*e949b54aSFlorian Hahn %a = load i32, ptr %Aidx, align 1 53*e949b54aSFlorian Hahn %c = mul i32 %a, 2 54*e949b54aSFlorian Hahn store i32 %c, ptr %Cidx, align 4 55*e949b54aSFlorian Hahn 56*e949b54aSFlorian Hahn %exitcond = icmp eq i64 %indvars.iv.next, %N 57*e949b54aSFlorian Hahn br i1 %exitcond, label %for.end, label %for.body 58*e949b54aSFlorian Hahn 59*e949b54aSFlorian Hahnfor.end: ; preds = %for.body 60*e949b54aSFlorian Hahn ret void 61*e949b54aSFlorian Hahn} 62