1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=instcombine -S | FileCheck %s 3 4define void @test(ptr %a, ptr readnone %a_end, i64 %b) unnamed_addr { 5; CHECK-LABEL: @test( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: [[CMP1:%.*]] = icmp ult ptr [[A:%.*]], [[A_END:%.*]] 8; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]] 9; CHECK: for.body.preheader: 10; CHECK-NEXT: [[B_FLOAT:%.*]] = inttoptr i64 [[B:%.*]] to ptr 11; CHECK-NEXT: br label [[FOR_BODY:%.*]] 12; CHECK: for.body: 13; CHECK-NEXT: [[A_ADDR_03:%.*]] = phi ptr [ [[INCDEC_PTR:%.*]], [[FOR_BODY]] ], [ [[A]], [[FOR_BODY_PREHEADER]] ] 14; CHECK-NEXT: [[B_ADDR_FLOAT:%.*]] = phi ptr [ [[B_ADDR_FLOAT_INC:%.*]], [[FOR_BODY]] ], [ [[B_FLOAT]], [[FOR_BODY_PREHEADER]] ] 15; CHECK-NEXT: [[L:%.*]] = load float, ptr [[B_ADDR_FLOAT]], align 4 16; CHECK-NEXT: [[MUL_I:%.*]] = fmul float [[L]], 4.200000e+01 17; CHECK-NEXT: store float [[MUL_I]], ptr [[A_ADDR_03]], align 4 18; CHECK-NEXT: [[B_ADDR_FLOAT_INC]] = getelementptr inbounds nuw i8, ptr [[B_ADDR_FLOAT]], i64 4 19; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds nuw i8, ptr [[A_ADDR_03]], i64 4 20; CHECK-NEXT: [[CMP:%.*]] = icmp ult ptr [[INCDEC_PTR]], [[A_END]] 21; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END]] 22; CHECK: for.end: 23; CHECK-NEXT: ret void 24; 25entry: 26 %cmp1 = icmp ult ptr %a, %a_end 27 br i1 %cmp1, label %for.body.preheader, label %for.end 28 29for.body.preheader: ; preds = %entry 30 %b.float = inttoptr i64 %b to ptr 31 br label %for.body 32 33for.body: ; preds = %for.body.preheader, %for.body 34 %a.addr.03 = phi ptr [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ] 35 %b.addr.float = phi ptr [ %b.addr.float.inc, %for.body ], [ %b.float, %for.body.preheader ] 36 %b.addr.i64 = phi i64 [ %b.addr.i64.inc, %for.body ], [ %b, %for.body.preheader ] 37 %l = load float, ptr %b.addr.float, align 4 38 %mul.i = fmul float %l, 4.200000e+01 39 store float %mul.i, ptr %a.addr.03, align 4 40 %b.addr.float.2 = inttoptr i64 %b.addr.i64 to ptr 41 %b.addr.float.inc = getelementptr inbounds float, ptr %b.addr.float.2, i64 1 42 %b.addr.i64.inc = ptrtoint ptr %b.addr.float.inc to i64 43 %incdec.ptr = getelementptr inbounds float, ptr %a.addr.03, i64 1 44 %cmp = icmp ult ptr %incdec.ptr, %a_end 45 br i1 %cmp, label %for.body, label %for.end 46 47for.end: ; preds = %for.body, %entry 48 ret void 49} 50 51 52 53