1 ; RUN: opt < %s -instcombine -S | FileCheck %s 2 3 define void @test1(float* %a, float* readnone %a_end, i64* %b.i64) { 4 ; CHECK-LABEL: @test1 5 entry: 6 %cmp1 = icmp ult float* %a, %a_end 7 br i1 %cmp1, label %for.body.preheader, label %for.end 8 9 for.body.preheader: ; preds = %entry 10 %b = load i64, i64* %b.i64, align 8 11 ; CHECK: load float*, float** 12 br label %for.body 13 14 for.body: ; preds = %for.body, %for.body.preheader 15 %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ] 16 %b.addr.02 = phi i64 [ %add.int, %for.body ], [ %b, %for.body.preheader ] 17 18 ; CHECK: %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ] 19 ; CHECK: %b.addr.02.ptr = phi float* [ %add, %for.body ], 20 ; CHECK-NOT: %b.addr.02 = phi i64 21 22 %tmp = inttoptr i64 %b.addr.02 to float* 23 ; CHECK-NOT: inttoptr i64 24 %tmp1 = load float, float* %tmp, align 4 25 ; CHECK: = load 26 %mul.i = fmul float %tmp1, 4.200000e+01 27 store float %mul.i, float* %a.addr.03, align 4 28 %add = getelementptr inbounds float, float* %tmp, i64 1 29 %add.int = ptrtoint float* %add to i64 30 ; CHECK %add = getelementptr 31 ; CHECK-NOT: ptrtoint float* 32 %incdec.ptr = getelementptr inbounds float, float* %a.addr.03, i64 1 33 ; CHECK: %incdec.ptr = 34 %cmp = icmp ult float* %incdec.ptr, %a_end 35 br i1 %cmp, label %for.body, label %for.end 36 37 for.end: ; preds = %for.body, %entry 38 ret void 39 } 40 41 define void @test1_neg(float* %a, float* readnone %a_end, i64* %b.i64) { 42 ; CHECK-LABEL: @test1_neg 43 entry: 44 %cmp1 = icmp ult float* %a, %a_end 45 br i1 %cmp1, label %for.body.preheader, label %for.end 46 47 for.body.preheader: ; preds = %entry 48 %b = load i64, i64* %b.i64, align 8 49 br label %for.body 50 51 for.body: ; preds = %for.body, %for.body.preheader 52 %a.addr.03 = phi float* [ %incdec.ptr, %bb ], [ %a, %for.body.preheader ] 53 %b.addr.02 = phi i64 [ %add.int, %bb ], [ %b, %for.body.preheader ] 54 55 ; CHECK: %a.addr.03 = phi float* [ %incdec.ptr, %bb ], [ %a, %for.body.preheader ] 56 ; CHECK: %b.addr.02 = phi i64 57 58 %tmp = inttoptr i64 %b.addr.02 to float* 59 ; CHECK: inttoptr i64 60 %ptrcmp = icmp ult float* %tmp, %a_end 61 br i1 %ptrcmp, label %for.end, label %bb 62 63 bb: 64 %tmp1 = load float, float* %a, align 4 65 %mul.i = fmul float %tmp1, 4.200000e+01 66 store float %mul.i, float* %a.addr.03, align 4 67 %add = getelementptr inbounds float, float* %a, i64 1 68 %add.int = ptrtoint float* %add to i64 69 ; CHECK: ptrtoint float* 70 %incdec.ptr = getelementptr inbounds float, float* %a.addr.03, i64 1 71 %cmp = icmp ult float* %incdec.ptr, %a_end 72 br i1 %cmp, label %for.body, label %for.end 73 74 for.end: ; preds = %for.body, %entry 75 ret void 76 } 77 78 79 define void @test2(float* %a, float* readnone %a_end, float** %b.float) { 80 ; CHECK-LABEL: @test2 81 entry: 82 %cmp1 = icmp ult float* %a, %a_end 83 br i1 %cmp1, label %for.body.preheader, label %for.end 84 85 for.body.preheader: ; preds = %entry 86 %b.i64 = bitcast float** %b.float to i64* 87 %b = load i64, i64* %b.i64, align 8 88 ; CHECK: load float*, float** 89 br label %for.body 90 91 for.body: ; preds = %for.body, %for.body.preheader 92 %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ] 93 %b.addr.02 = phi i64 [ %add.int, %for.body ], [ %b, %for.body.preheader ] 94 95 ; CHECK: %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ] 96 ; CHECK: %b.addr.02.ptr = phi float* [ %add, %for.body ], 97 ; CHECK-NOT: %b.addr.02 = phi i64 98 99 %tmp = inttoptr i64 %b.addr.02 to float* 100 ; CHECK-NOT: inttoptr i64 101 %tmp1 = load float, float* %tmp, align 4 102 ; CHECK: = load 103 %mul.i = fmul float %tmp1, 4.200000e+01 104 store float %mul.i, float* %a.addr.03, align 4 105 %add = getelementptr inbounds float, float* %tmp, i64 1 106 ; CHECK: %add = 107 %add.int = ptrtoint float* %add to i64 108 ; CHECK-NOT: ptrtoint float* 109 %incdec.ptr = getelementptr inbounds float, float* %a.addr.03, i64 1 110 ; CHECK: %incdec.ptr = 111 %cmp = icmp ult float* %incdec.ptr, %a_end 112 br i1 %cmp, label %for.body, label %for.end 113 114 for.end: ; preds = %for.body, %entry 115 ret void 116 } 117 118 119 define void @test3(float* %a, float* readnone %a_end, i8** %b.i8p) { 120 ; CHECK-LABEL: @test3 121 entry: 122 %cmp1 = icmp ult float* %a, %a_end 123 br i1 %cmp1, label %for.body.preheader, label %for.end 124 125 for.body.preheader: ; preds = %entry 126 %b.i64 = bitcast i8** %b.i8p to i64* 127 %b = load i64, i64* %b.i64, align 8 128 ; CHECK: load float*, float** 129 br label %for.body 130 131 for.body: ; preds = %for.body, %for.body.preheader 132 %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ] 133 %b.addr.02 = phi i64 [ %add.int, %for.body ], [ %b, %for.body.preheader ] 134 135 ; CHECK: %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ] 136 ; CHECK: %b.addr.02.ptr = phi float* [ %add, %for.body ], 137 ; CHECK-NOT: %b.addr.02 = phi i64 138 139 %tmp = inttoptr i64 %b.addr.02 to float* 140 ; CHECK-NOT: inttoptr i64 141 %tmp1 = load float, float* %tmp, align 4 142 ; CHECK: = load 143 %mul.i = fmul float %tmp1, 4.200000e+01 144 store float %mul.i, float* %a.addr.03, align 4 145 %add = getelementptr inbounds float, float* %tmp, i64 1 146 ; CHECK: %add = getelementptr 147 %add.int = ptrtoint float* %add to i64 148 ; CHECK-NOT: ptrtoint float* 149 %incdec.ptr = getelementptr inbounds float, float* %a.addr.03, i64 1 150 ; CHECK: %incdec.ptr = 151 %cmp = icmp ult float* %incdec.ptr, %a_end 152 br i1 %cmp, label %for.body, label %for.end 153 154 for.end: ; preds = %for.body, %entry 155 ret void 156 } 157 158 159 define void @test4(float* %a, float* readnone %a_end, float** %b.float) { 160 entry: 161 ; CHECK-LABEL: @test4 162 %cmp1 = icmp ult float* %a, %a_end 163 br i1 %cmp1, label %for.body.preheader, label %for.end 164 165 for.body.preheader: ; preds = %entry 166 %b.f = load float*, float** %b.float, align 8 167 %b = ptrtoint float* %b.f to i64 168 ; CHECK: load float*, float** 169 ; CHECK-NOT: ptrtoint float* 170 br label %for.body 171 ; CHECK: br label %for.body 172 173 for.body: ; preds = %for.body, %for.body.preheader 174 %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ] 175 %b.addr.02 = phi i64 [ %add.int, %for.body ], [ %b, %for.body.preheader ] 176 %tmp = inttoptr i64 %b.addr.02 to float* 177 ; CHECK-NOT: inttoptr i64 178 %tmp1 = load float, float* %tmp, align 4 179 ; CHECK: = load 180 %mul.i = fmul float %tmp1, 4.200000e+01 181 store float %mul.i, float* %a.addr.03, align 4 182 %add = getelementptr inbounds float, float* %tmp, i64 1 183 ; CHECK: %add = 184 %add.int = ptrtoint float* %add to i64 185 ; CHECK-NOT: ptrtoint float* 186 %incdec.ptr = getelementptr inbounds float, float* %a.addr.03, i64 1 187 ; CHECK: %incdec.ptr = 188 %cmp = icmp ult float* %incdec.ptr, %a_end 189 br i1 %cmp, label %for.body, label %for.end 190 191 for.end: ; preds = %for.body, %entry 192 ret void 193 } 194
