1 ; RUN: opt < %s -default-data-layout="e-p:64:64:64-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64" -instcombine -S | FileCheck %s --check-prefix=LE 2 ; RUN: opt < %s -default-data-layout="E-p:64:64:64-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64" -instcombine -S | FileCheck %s --check-prefix=BE 3 4 ; {{ 0xDEADBEEF, 0xBA }, 0xCAFEBABE} 5 @g1 = constant {{i32,i8},i32} {{i32,i8} { i32 -559038737, i8 186 }, i32 -889275714 } 6 @g2 = constant double 1.0 7 ; { 0x7B, 0x06B1BFF8 } 8 @g3 = constant {i64, i64} { i64 123, i64 112312312 } 9 10 ; Simple load 11 define i32 @test1() { 12 %r = load i32, i32* getelementptr ({{i32,i8},i32}, {{i32,i8},i32}* @g1, i32 0, i32 0, i32 0) 13 ret i32 %r 14 15 ; 0xDEADBEEF 16 ; LE-LABEL: @test1( 17 ; LE: ret i32 -559038737 18 19 ; 0xDEADBEEF 20 ; BE-LABEL: @test1( 21 ; BE: ret i32 -559038737 22 } 23 24 ; PR3152 25 ; Load of first 16 bits of 32-bit value. 26 define i16 @test2() { 27 %r = load i16, i16* bitcast(i32* getelementptr ({{i32,i8},i32}, {{i32,i8},i32}* @g1, i32 0, i32 0, i32 0) to i16*) 28 ret i16 %r 29 30 ; 0xBEEF 31 ; LE-LABEL: @test2( 32 ; LE: ret i16 -16657 33 34 ; 0xDEAD 35 ; BE-LABEL: @test2( 36 ; BE: ret i16 -8531 37 } 38 39 define i16 @test2_addrspacecast() { 40 %r = load i16, i16 addrspace(1)* addrspacecast(i32* getelementptr ({{i32,i8},i32}, {{i32,i8},i32}* @g1, i32 0, i32 0, i32 0) to i16 addrspace(1)*) 41 ret i16 %r 42 43 ; FIXME: Should be able to load through a constant addrspacecast. 44 ; 0xBEEF 45 ; LE-LABEL: @test2_addrspacecast( 46 ; XLE: ret i16 -16657 47 ; LE: load i16, i16 addrspace(1)* addrspacecast 48 49 ; 0xDEAD 50 ; BE-LABEL: @test2_addrspacecast( 51 ; XBE: ret i16 -8531 52 ; BE: load i16, i16 addrspace(1)* addrspacecast 53 } 54 55 ; Load of second 16 bits of 32-bit value. 56 define i16 @test3() { 57 %r = load i16, i16* getelementptr(i16, i16* bitcast(i32* getelementptr ({{i32,i8},i32}, {{i32,i8},i32}* @g1, i32 0, i32 0, i32 0) to i16*), i32 1) 58 ret i16 %r 59 60 ; 0xDEAD 61 ; LE-LABEL: @test3( 62 ; LE: ret i16 -8531 63 64 ; 0xBEEF 65 ; BE-LABEL: @test3( 66 ; BE: ret i16 -16657 67 } 68 69 ; Load of 8 bit field + tail padding. 70 define i16 @test4() { 71 %r = load i16, i16* getelementptr(i16, i16* bitcast(i32* getelementptr ({{i32,i8},i32}, {{i32,i8},i32}* @g1, i32 0, i32 0, i32 0) to i16*), i32 2) 72 ret i16 %r 73 74 ; 0x00BA 75 ; LE-LABEL: @test4( 76 ; LE: ret i16 186 77 78 ; 0xBA00 79 ; BE-LABEL: @test4( 80 ; BE: ret i16 -17920 81 } 82 83 ; Load of double bits. 84 define i64 @test6() { 85 %r = load i64, i64* bitcast(double* @g2 to i64*) 86 ret i64 %r 87 88 ; 0x3FF_0000000000000 89 ; LE-LABEL: @test6( 90 ; LE: ret i64 4607182418800017408 91 92 ; 0x3FF_0000000000000 93 ; BE-LABEL: @test6( 94 ; BE: ret i64 4607182418800017408 95 } 96 97 ; Load of double bits. 98 define i16 @test7() { 99 %r = load i16, i16* bitcast(double* @g2 to i16*) 100 ret i16 %r 101 102 ; 0x0000 103 ; LE-LABEL: @test7( 104 ; LE: ret i16 0 105 106 ; 0x3FF0 107 ; BE-LABEL: @test7( 108 ; BE: ret i16 16368 109 } 110 111 ; Double load. 112 define double @test8() { 113 %r = load double, double* bitcast({{i32,i8},i32}* @g1 to double*) 114 ret double %r 115 116 ; LE-LABEL: @test8( 117 ; LE: ret double 0xBADEADBEEF 118 119 ; BE-LABEL: @test8( 120 ; BE: ret double 0xDEADBEEFBA000000 121 } 122 123 124 ; i128 load. 125 define i128 @test9() { 126 %r = load i128, i128* bitcast({i64, i64}* @g3 to i128*) 127 ret i128 %r 128 129 ; 0x00000000_06B1BFF8_00000000_0000007B 130 ; LE-LABEL: @test9( 131 ; LE: ret i128 2071796475790618158476296315 132 133 ; 0x00000000_0000007B_00000000_06B1BFF8 134 ; BE-LABEL: @test9( 135 ; BE: ret i128 2268949521066387161080 136 } 137 138 ; vector load. 139 define <2 x i64> @test10() { 140 %r = load <2 x i64>, <2 x i64>* bitcast({i64, i64}* @g3 to <2 x i64>*) 141 ret <2 x i64> %r 142 143 ; LE-LABEL: @test10( 144 ; LE: ret <2 x i64> <i64 123, i64 112312312> 145 146 ; BE-LABEL: @test10( 147 ; BE: ret <2 x i64> <i64 123, i64 112312312> 148 } 149 150 151 ; PR5287 152 ; { 0xA1, 0x08 } 153 @g4 = internal constant { i8, i8 } { i8 -95, i8 8 } 154 155 define i16 @test11() nounwind { 156 entry: 157 %a = load i16, i16* bitcast ({ i8, i8 }* @g4 to i16*) 158 ret i16 %a 159 160 ; 0x08A1 161 ; LE-LABEL: @test11( 162 ; LE: ret i16 2209 163 164 ; 0xA108 165 ; BE-LABEL: @test11( 166 ; BE: ret i16 -24312 167 } 168 169 170 ; PR5551 171 @test12g = private constant [6 x i8] c"a\00b\00\00\00" 172 173 define i16 @test12() { 174 %a = load i16, i16* getelementptr inbounds ([3 x i16], [3 x i16]* bitcast ([6 x i8]* @test12g to [3 x i16]*), i32 0, i64 1) 175 ret i16 %a 176 177 ; 0x0062 178 ; LE-LABEL: @test12( 179 ; LE: ret i16 98 180 181 ; 0x6200 182 ; BE-LABEL: @test12( 183 ; BE: ret i16 25088 184 } 185 186 187 ; PR5978 188 @g5 = constant i8 4 189 define i1 @test13() { 190 %A = load i1, i1* bitcast (i8* @g5 to i1*) 191 ret i1 %A 192 193 ; LE-LABEL: @test13( 194 ; LE: ret i1 false 195 196 ; BE-LABEL: @test13( 197 ; BE: ret i1 false 198 } 199 200 @g6 = constant [2 x i8*] [i8* inttoptr (i64 1 to i8*), i8* inttoptr (i64 2 to i8*)] 201 define i64 @test14() nounwind { 202 entry: 203 %tmp = load i64, i64* bitcast ([2 x i8*]* @g6 to i64*) 204 ret i64 %tmp 205 206 ; LE-LABEL: @test14( 207 ; LE: ret i64 1 208 209 ; BE-LABEL: @test14( 210 ; BE: ret i64 1 211 } 212 213 ; Check with address space pointers 214 @g6_as1 = constant [2 x i8 addrspace(1)*] [i8 addrspace(1)* inttoptr (i16 1 to i8 addrspace(1)*), i8 addrspace(1)* inttoptr (i16 2 to i8 addrspace(1)*)] 215 define i16 @test14_as1() nounwind { 216 entry: 217 %tmp = load i16, i16* bitcast ([2 x i8 addrspace(1)*]* @g6_as1 to i16*) 218 ret i16 %tmp 219 220 ; LE: @test14_as1 221 ; LE: ret i16 1 222 223 ; BE: @test14_as1 224 ; BE: ret i16 1 225 } 226 227 define i64 @test15() nounwind { 228 entry: 229 %tmp = load i64, i64* bitcast (i8** getelementptr inbounds ([2 x i8*], [2 x i8*]* @g6, i32 0, i64 1) to i64*) 230 ret i64 %tmp 231 232 ; LE-LABEL: @test15( 233 ; LE: ret i64 2 234 235 ; BE-LABEL: @test15( 236 ; BE: ret i64 2 237 } 238 239 @gv7 = constant [4 x i8*] [i8* null, i8* inttoptr (i64 -14 to i8*), i8* null, i8* null] 240 define i64 @test16.1() { 241 %v = load i64, i64* bitcast ([4 x i8*]* @gv7 to i64*), align 8 242 ret i64 %v 243 244 ; LE-LABEL: @test16.1( 245 ; LE: ret i64 0 246 247 ; BE-LABEL: @test16.1( 248 ; BE: ret i64 0 249 } 250 251 define i64 @test16.2() { 252 %v = load i64, i64* bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @gv7, i64 0, i64 1) to i64*), align 8 253 ret i64 %v 254 255 ; LE-LABEL: @test16.2( 256 ; LE: ret i64 -14 257 258 ; BE-LABEL: @test16.2( 259 ; BE: ret i64 -14 260 } 261 262 define i64 @test16.3() { 263 %v = load i64, i64* bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @gv7, i64 0, i64 2) to i64*), align 8 264 ret i64 %v 265 266 ; LE-LABEL: @test16.3( 267 ; LE: ret i64 0 268 269 ; BE-LABEL: @test16.3( 270 ; BE: ret i64 0 271 } 272
