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