| ; RUN: opt < %s -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 |
| ; RUN: opt < %s -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 |
| |
| ; {{ 0xDEADBEEF, 0xBA }, 0xCAFEBABE} |
| @g1 = constant {{i32,i8},i32} {{i32,i8} { i32 -559038737, i8 186 }, i32 -889275714 } |
| @g2 = constant double 1.0 |
| ; { 0x7B, 0x06B1BFF8 } |
| @g3 = constant {i64, i64} { i64 123, i64 112312312 } |
| |
| ; Simple load |
| define i32 @test1() { |
| %r = load i32, i32* getelementptr ({{i32,i8},i32}, {{i32,i8},i32}* @g1, i32 0, i32 0, i32 0) |
| ret i32 %r |
| |
| ; 0xDEADBEEF |
| ; LE-LABEL: @test1( |
| ; LE: ret i32 -559038737 |
| |
| ; 0xDEADBEEF |
| ; BE-LABEL: @test1( |
| ; BE: ret i32 -559038737 |
| } |
| |
| ; PR3152 |
| ; Load of first 16 bits of 32-bit value. |
| define i16 @test2() { |
| %r = load i16, i16* bitcast(i32* getelementptr ({{i32,i8},i32}, {{i32,i8},i32}* @g1, i32 0, i32 0, i32 0) to i16*) |
| ret i16 %r |
| |
| ; 0xBEEF |
| ; LE-LABEL: @test2( |
| ; LE: ret i16 -16657 |
| |
| ; 0xDEAD |
| ; BE-LABEL: @test2( |
| ; BE: ret i16 -8531 |
| } |
| |
| define i16 @test2_addrspacecast() { |
| %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)*) |
| ret i16 %r |
| |
| ; FIXME: Should be able to load through a constant addrspacecast. |
| ; 0xBEEF |
| ; LE-LABEL: @test2_addrspacecast( |
| ; XLE: ret i16 -16657 |
| ; LE: load i16, i16 addrspace(1)* addrspacecast |
| |
| ; 0xDEAD |
| ; BE-LABEL: @test2_addrspacecast( |
| ; XBE: ret i16 -8531 |
| ; BE: load i16, i16 addrspace(1)* addrspacecast |
| } |
| |
| ; Load of second 16 bits of 32-bit value. |
| define i16 @test3() { |
| %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) |
| ret i16 %r |
| |
| ; 0xDEAD |
| ; LE-LABEL: @test3( |
| ; LE: ret i16 -8531 |
| |
| ; 0xBEEF |
| ; BE-LABEL: @test3( |
| ; BE: ret i16 -16657 |
| } |
| |
| ; Load of 8 bit field + tail padding. |
| define i16 @test4() { |
| %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) |
| ret i16 %r |
| |
| ; 0x00BA |
| ; LE-LABEL: @test4( |
| ; LE: ret i16 186 |
| |
| ; 0xBA00 |
| ; BE-LABEL: @test4( |
| ; BE: ret i16 -17920 |
| } |
| |
| ; Load of double bits. |
| define i64 @test6() { |
| %r = load i64, i64* bitcast(double* @g2 to i64*) |
| ret i64 %r |
| |
| ; 0x3FF_0000000000000 |
| ; LE-LABEL: @test6( |
| ; LE: ret i64 4607182418800017408 |
| |
| ; 0x3FF_0000000000000 |
| ; BE-LABEL: @test6( |
| ; BE: ret i64 4607182418800017408 |
| } |
| |
| ; Load of double bits. |
| define i16 @test7() { |
| %r = load i16, i16* bitcast(double* @g2 to i16*) |
| ret i16 %r |
| |
| ; 0x0000 |
| ; LE-LABEL: @test7( |
| ; LE: ret i16 0 |
| |
| ; 0x3FF0 |
| ; BE-LABEL: @test7( |
| ; BE: ret i16 16368 |
| } |
| |
| ; Double load. |
| define double @test8() { |
| %r = load double, double* bitcast({{i32,i8},i32}* @g1 to double*) |
| ret double %r |
| |
| ; LE-LABEL: @test8( |
| ; LE: ret double 0xBADEADBEEF |
| |
| ; BE-LABEL: @test8( |
| ; BE: ret double 0xDEADBEEFBA000000 |
| } |
| |
| |
| ; i128 load. |
| define i128 @test9() { |
| %r = load i128, i128* bitcast({i64, i64}* @g3 to i128*) |
| ret i128 %r |
| |
| ; 0x00000000_06B1BFF8_00000000_0000007B |
| ; LE-LABEL: @test9( |
| ; LE: ret i128 2071796475790618158476296315 |
| |
| ; 0x00000000_0000007B_00000000_06B1BFF8 |
| ; BE-LABEL: @test9( |
| ; BE: ret i128 2268949521066387161080 |
| } |
| |
| ; vector load. |
| define <2 x i64> @test10() { |
| %r = load <2 x i64>, <2 x i64>* bitcast({i64, i64}* @g3 to <2 x i64>*) |
| ret <2 x i64> %r |
| |
| ; LE-LABEL: @test10( |
| ; LE: ret <2 x i64> <i64 123, i64 112312312> |
| |
| ; BE-LABEL: @test10( |
| ; BE: ret <2 x i64> <i64 123, i64 112312312> |
| } |
| |
| |
| ; PR5287 |
| ; { 0xA1, 0x08 } |
| @g4 = internal constant { i8, i8 } { i8 -95, i8 8 } |
| |
| define i16 @test11() nounwind { |
| entry: |
| %a = load i16, i16* bitcast ({ i8, i8 }* @g4 to i16*) |
| ret i16 %a |
| |
| ; 0x08A1 |
| ; LE-LABEL: @test11( |
| ; LE: ret i16 2209 |
| |
| ; 0xA108 |
| ; BE-LABEL: @test11( |
| ; BE: ret i16 -24312 |
| } |
| |
| |
| ; PR5551 |
| @test12g = private constant [6 x i8] c"a\00b\00\00\00" |
| |
| define i16 @test12() { |
| %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) |
| ret i16 %a |
| |
| ; 0x0062 |
| ; LE-LABEL: @test12( |
| ; LE: ret i16 98 |
| |
| ; 0x6200 |
| ; BE-LABEL: @test12( |
| ; BE: ret i16 25088 |
| } |
| |
| |
| ; PR5978 |
| @g5 = constant i8 4 |
| define i1 @test13() { |
| %A = load i1, i1* bitcast (i8* @g5 to i1*) |
| ret i1 %A |
| |
| ; LE-LABEL: @test13( |
| ; LE: ret i1 false |
| |
| ; BE-LABEL: @test13( |
| ; BE: ret i1 false |
| } |
| |
| @g6 = constant [2 x i8*] [i8* inttoptr (i64 1 to i8*), i8* inttoptr (i64 2 to i8*)] |
| define i64 @test14() nounwind { |
| entry: |
| %tmp = load i64, i64* bitcast ([2 x i8*]* @g6 to i64*) |
| ret i64 %tmp |
| |
| ; LE-LABEL: @test14( |
| ; LE: ret i64 1 |
| |
| ; BE-LABEL: @test14( |
| ; BE: ret i64 1 |
| } |
| |
| ; Check with address space pointers |
| @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)*)] |
| define i16 @test14_as1() nounwind { |
| entry: |
| %tmp = load i16, i16* bitcast ([2 x i8 addrspace(1)*]* @g6_as1 to i16*) |
| ret i16 %tmp |
| |
| ; LE: @test14_as1 |
| ; LE: ret i16 1 |
| |
| ; BE: @test14_as1 |
| ; BE: ret i16 1 |
| } |
| |
| define i64 @test15() nounwind { |
| entry: |
| %tmp = load i64, i64* bitcast (i8** getelementptr inbounds ([2 x i8*], [2 x i8*]* @g6, i32 0, i64 1) to i64*) |
| ret i64 %tmp |
| |
| ; LE-LABEL: @test15( |
| ; LE: ret i64 2 |
| |
| ; BE-LABEL: @test15( |
| ; BE: ret i64 2 |
| } |
| |
| @gv7 = constant [4 x i8*] [i8* null, i8* inttoptr (i64 -14 to i8*), i8* null, i8* null] |
| define i64 @test16.1() { |
| %v = load i64, i64* bitcast ([4 x i8*]* @gv7 to i64*), align 8 |
| ret i64 %v |
| |
| ; LE-LABEL: @test16.1( |
| ; LE: ret i64 0 |
| |
| ; BE-LABEL: @test16.1( |
| ; BE: ret i64 0 |
| } |
| |
| define i64 @test16.2() { |
| %v = load i64, i64* bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @gv7, i64 0, i64 1) to i64*), align 8 |
| ret i64 %v |
| |
| ; LE-LABEL: @test16.2( |
| ; LE: ret i64 -14 |
| |
| ; BE-LABEL: @test16.2( |
| ; BE: ret i64 -14 |
| } |
| |
| define i64 @test16.3() { |
| %v = load i64, i64* bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @gv7, i64 0, i64 2) to i64*), align 8 |
| ret i64 %v |
| |
| ; LE-LABEL: @test16.3( |
| ; LE: ret i64 0 |
| |
| ; BE-LABEL: @test16.3( |
| ; BE: ret i64 0 |
| } |
| |
| @g7 = constant {[0 x i32], [0 x i8], {}*} { [0 x i32] undef, [0 x i8] undef, {}* null } |
| |
| define i64* @test_leading_zero_size_elems() { |
| %v = load i64*, i64** bitcast ({[0 x i32], [0 x i8], {}*}* @g7 to i64**) |
| ret i64* %v |
| |
| ; LE-LABEL: @test_leading_zero_size_elems( |
| ; LE: ret i64* null |
| |
| ; BE-LABEL: @test_leading_zero_size_elems( |
| ; BE: ret i64* null |
| } |
| |
| @g8 = constant {[4294967295 x [0 x i32]], i64} { [4294967295 x [0 x i32]] undef, i64 123 } |
| |
| define i64 @test_leading_zero_size_elems_big() { |
| %v = load i64, i64* bitcast ({[4294967295 x [0 x i32]], i64}* @g8 to i64*) |
| ret i64 %v |
| |
| ; LE-LABEL: @test_leading_zero_size_elems_big( |
| ; LE: ret i64 123 |
| |
| ; BE-LABEL: @test_leading_zero_size_elems_big( |
| ; BE: ret i64 123 |
| } |
| |
| @g9 = constant [4294967295 x [0 x i32]] zeroinitializer |
| |
| define i64 @test_array_of_zero_size_array() { |
| %v = load i64, i64* bitcast ([4294967295 x [0 x i32]]* @g9 to i64*) |
| ret i64 %v |
| |
| ; LE-LABEL: @test_array_of_zero_size_array( |
| ; LE: ret i64 0 |
| |
| ; BE-LABEL: @test_array_of_zero_size_array( |
| ; BE: ret i64 0 |
| } |