1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=gvn -gvn-add-phi-translation=true -S < %s | FileCheck %s --check-prefix=ADD-TRANS-ON 3; RUN: opt -passes=gvn -gvn-add-phi-translation=false -S < %s | FileCheck %s --check-prefix=ADD-TRANS-OFF 4 5; Test that phi translation is able to hoist a load whose address 6; depends on an add also being hoisted. 7define double @phi_translation_hoists_add(ptr %a, i64 %idx) { 8; ADD-TRANS-ON-LABEL: @phi_translation_hoists_add( 9; ADD-TRANS-ON-NEXT: entry: 10; ADD-TRANS-ON-NEXT: [[ADD_PHI_TRANS_INSERT:%.*]] = add nuw nsw i64 [[IDX:%.*]], 1 11; ADD-TRANS-ON-NEXT: [[GEP_PHI_TRANS_INSERT:%.*]] = getelementptr inbounds double, ptr [[A:%.*]], i64 [[ADD_PHI_TRANS_INSERT]] 12; ADD-TRANS-ON-NEXT: [[LOAD_PRE:%.*]] = load double, ptr [[GEP_PHI_TRANS_INSERT]], align 8 13; ADD-TRANS-ON-NEXT: br label [[FOR_BODY:%.*]] 14; ADD-TRANS-ON: for.body: 15; ADD-TRANS-ON-NEXT: [[CMP:%.*]] = fcmp ole double [[LOAD_PRE]], 1.000000e+00 16; ADD-TRANS-ON-NEXT: br i1 [[CMP]], label [[EXIT:%.*]], label [[FOR_BODY]] 17; ADD-TRANS-ON: exit: 18; ADD-TRANS-ON-NEXT: ret double [[LOAD_PRE]] 19; 20; ADD-TRANS-OFF-LABEL: @phi_translation_hoists_add( 21; ADD-TRANS-OFF-NEXT: entry: 22; ADD-TRANS-OFF-NEXT: br label [[FOR_BODY:%.*]] 23; ADD-TRANS-OFF: for.body: 24; ADD-TRANS-OFF-NEXT: [[ADD:%.*]] = add nuw nsw i64 [[IDX:%.*]], 1 25; ADD-TRANS-OFF-NEXT: [[GEP:%.*]] = getelementptr inbounds double, ptr [[A:%.*]], i64 [[ADD]] 26; ADD-TRANS-OFF-NEXT: [[LOAD:%.*]] = load double, ptr [[GEP]], align 8 27; ADD-TRANS-OFF-NEXT: [[CMP:%.*]] = fcmp ole double [[LOAD]], 1.000000e+00 28; ADD-TRANS-OFF-NEXT: br i1 [[CMP]], label [[EXIT:%.*]], label [[FOR_BODY]] 29; ADD-TRANS-OFF: exit: 30; ADD-TRANS-OFF-NEXT: ret double [[LOAD]] 31; 32entry: 33 br label %for.body 34 35for.body: ; preds = %for.body, %entry 36 %add = add nuw nsw i64 %idx, 1 37 %gep = getelementptr inbounds double, ptr %a, i64 %add 38 %load = load double, ptr %gep 39 %cmp = fcmp ole double %load, 1.000000e+00 40 br i1 %cmp, label %exit, label %for.body 41 42exit: 43 ret double %load 44} 45