1 ; RUN: opt < %s -instcombine -S | FileCheck %s 2 3 define void @test(float* %a, float* readnone %a_end, i64 %b, float* %bf) unnamed_addr { 4 entry: 5 %cmp1 = icmp ult float* %a, %a_end 6 %b.float = inttoptr i64 %b to float* 7 br i1 %cmp1, label %bb1, label %bb2 8 9 bb1: 10 br label %for.body.preheader 11 bb2: 12 %bfi = ptrtoint float* %bf to i64 13 br label %for.body.preheader 14 15 for.body.preheader: ; preds = %entry 16 %b.phi = phi i64 [%b, %bb1], [%bfi, %bb2] 17 switch i64 %b, label %for.body [ 18 i64 1, label %for.body 19 ] 20 ; CHECK: for.body.preheader 21 ; CHECK: %b.phi = phi 22 ; CHECK: %b.phi.ptr = 23 ; CHECK-NOT: %b.phi.ptr2 = 24 ; CHECK: switch 25 26 for.body: ; preds = %for.body.preheader, %for.body 27 ; CHECK: for.body 28 %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ], [%a, %for.body.preheader] 29 %b.addr.float = phi float* [ %b.addr.float.inc, %for.body ], [ %b.float, %for.body.preheader ], [%b.float, %for.body.preheader] 30 %b.addr.i64 = phi i64 [ %b.addr.i64.inc, %for.body ], [ %b.phi, %for.body.preheader ], [ %b.phi, %for.body.preheader] 31 ; CHECK: %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ] 32 ; CHECK-NEXT: %b.addr.float = phi float* [ %b.addr.float.inc, %for.body ], [ %b.float, %for.body.preheader ] 33 ; CHECK-NEXT: %b.addr.i64.ptr = phi 34 ; CHECK-NOT: = %b.addr.i64 35 ; CHECK: = load 36 %l = load float, float* %b.addr.float, align 4 37 %mul.i = fmul float %l, 4.200000e+01 38 store float %mul.i, float* %a.addr.03, align 4 39 %b.addr.float.2 = inttoptr i64 %b.addr.i64 to float* 40 %b.addr.float.inc = getelementptr inbounds float, float* %b.addr.float.2, i64 1 41 ; CHECK: store float %mul.i 42 ; CHECK-NOT: inttoptr 43 ; CHECK: %b.addr.float.inc = 44 %b.addr.i64.inc = ptrtoint float* %b.addr.float.inc to i64 45 ; CHECK-NOT: ptrtoint 46 %incdec.ptr = getelementptr inbounds float, float* %a.addr.03, i64 1 47 ; CHECK: %incdec.ptr = 48 %cmp = icmp ult float* %incdec.ptr, %a_end 49 br i1 %cmp, label %for.body, label %for.end 50 51 for.end: ; preds = %for.body, %entry 52 ret void 53 } 54 55 56 57
