1 ; RUN: llc -mtriple=arm64-linux-gnu -o - %s -mcpu=cyclone | FileCheck %s 2 ; RUN: llc -mtriple=arm64-linux-gnu -o - %s -O0 -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-FAST 3 ; RUN: llc -mtriple=arm64-linux-gnu -relocation-model=pic -o - %s -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-PIC 4 ; RUN: llc -mtriple=arm64-linux-gnu -O0 -relocation-model=pic -o - %s -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-FAST-PIC 5 6 @var8 = external global i8, align 1 7 @var16 = external global i16, align 2 8 @var32 = external global i32, align 4 9 @var64 = external global i64, align 8 10 11 define i8 @test_i8(i8 %new) { 12 %val = load i8* @var8, align 1 13 store i8 %new, i8* @var8 14 ret i8 %val 15 ; CHECK-LABEL: test_i8: 16 ; CHECK: adrp x[[HIREG:[0-9]+]], var8 17 ; CHECK: ldrb {{w[0-9]+}}, [x[[HIREG]], :lo12:var8] 18 ; CHECK: strb {{w[0-9]+}}, [x[[HIREG]], :lo12:var8] 19 20 ; CHECK-PIC-LABEL: test_i8: 21 ; CHECK-PIC: adrp x[[HIREG:[0-9]+]], :got:var8 22 ; CHECK-PIC: ldr x[[VAR_ADDR:[0-9]+]], [x[[HIREG]], :got_lo12:var8] 23 ; CHECK-PIC: ldrb {{w[0-9]+}}, [x[[VAR_ADDR]]] 24 25 ; CHECK-FAST: adrp x[[HIREG:[0-9]+]], var8 26 ; CHECK-FAST: ldrb {{w[0-9]+}}, [x[[HIREG]], :lo12:var8] 27 28 ; CHECK-FAST-PIC: adrp x[[HIREG:[0-9]+]], :got:var8 29 ; CHECK-FAST-PIC: ldr x[[VARADDR:[0-9]+]], [x[[HIREG]], :got_lo12:var8] 30 ; CHECK-FAST-PIC: ldr {{w[0-9]+}}, [x[[VARADDR]]] 31 } 32 33 define i16 @test_i16(i16 %new) { 34 %val = load i16* @var16, align 2 35 store i16 %new, i16* @var16 36 ret i16 %val 37 ; CHECK-LABEL: test_i16: 38 ; CHECK: adrp x[[HIREG:[0-9]+]], var16 39 ; CHECK: ldrh {{w[0-9]+}}, [x[[HIREG]], :lo12:var16] 40 ; CHECK: strh {{w[0-9]+}}, [x[[HIREG]], :lo12:var16] 41 42 ; CHECK-FAST: adrp x[[HIREG:[0-9]+]], var16 43 ; CHECK-FAST: ldrh {{w[0-9]+}}, [x[[HIREG]], :lo12:var16] 44 } 45 46 define i32 @test_i32(i32 %new) { 47 %val = load i32* @var32, align 4 48 store i32 %new, i32* @var32 49 ret i32 %val 50 ; CHECK-LABEL: test_i32: 51 ; CHECK: adrp x[[HIREG:[0-9]+]], var32 52 ; CHECK: ldr {{w[0-9]+}}, [x[[HIREG]], :lo12:var32] 53 ; CHECK: str {{w[0-9]+}}, [x[[HIREG]], :lo12:var32] 54 55 ; CHECK-FAST: adrp x[[HIREG:[0-9]+]], var32 56 ; CHECK-FAST: add {{x[0-9]+}}, x[[HIREG]], :lo12:var32 57 } 58 59 define i64 @test_i64(i64 %new) { 60 %val = load i64* @var64, align 8 61 store i64 %new, i64* @var64 62 ret i64 %val 63 ; CHECK-LABEL: test_i64: 64 ; CHECK: adrp x[[HIREG:[0-9]+]], var64 65 ; CHECK: ldr {{x[0-9]+}}, [x[[HIREG]], :lo12:var64] 66 ; CHECK: str {{x[0-9]+}}, [x[[HIREG]], :lo12:var64] 67 68 ; CHECK-FAST: adrp x[[HIREG:[0-9]+]], var64 69 ; CHECK-FAST: add {{x[0-9]+}}, x[[HIREG]], :lo12:var64 70 } 71 72 define i64* @test_addr() { 73 ret i64* @var64 74 ; CHECK-LABEL: test_addr: 75 ; CHECK: adrp [[HIREG:x[0-9]+]], var64 76 ; CHECK: add x0, [[HIREG]], :lo12:var64 77 78 ; CHECK-FAST: adrp [[HIREG:x[0-9]+]], var64 79 ; CHECK-FAST: add x0, [[HIREG]], :lo12:var64 80 } 81 82 @hiddenvar = hidden global i32 0, align 4 83 @protectedvar = protected global i32 0, align 4 84 85 define i32 @test_vis() { 86 %lhs = load i32* @hiddenvar, align 4 87 %rhs = load i32* @protectedvar, align 4 88 %ret = add i32 %lhs, %rhs 89 ret i32 %ret 90 ; CHECK-PIC: adrp {{x[0-9]+}}, hiddenvar 91 ; CHECK-PIC: ldr {{w[0-9]+}}, [{{x[0-9]+}}, :lo12:hiddenvar] 92 ; CHECK-PIC: adrp {{x[0-9]+}}, protectedvar 93 ; CHECK-PIC: ldr {{w[0-9]+}}, [{{x[0-9]+}}, :lo12:protectedvar] 94 } 95 96 @var_default = external global [2 x i32] 97 98 define i32 @test_default_align() { 99 %addr = getelementptr [2 x i32]* @var_default, i32 0, i32 0 100 %val = load i32* %addr 101 ret i32 %val 102 ; CHECK-LABEL: test_default_align: 103 ; CHECK: adrp x[[HIREG:[0-9]+]], var_default 104 ; CHECK: ldr w0, [x[[HIREG]], :lo12:var_default] 105 } 106 107 define i64 @test_default_unaligned() { 108 %addr = bitcast [2 x i32]* @var_default to i64* 109 %val = load i64* %addr 110 ret i64 %val 111 ; CHECK-LABEL: test_default_unaligned: 112 ; CHECK: adrp [[HIREG:x[0-9]+]], var_default 113 ; CHECK: add x[[ADDR:[0-9]+]], [[HIREG]], :lo12:var_default 114 ; CHECK: ldr x0, [x[[ADDR]]] 115 } 116
