derek.holloway
7502bf64a4
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144 lines
4.4 KiB
LLVM
144 lines
4.4 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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target triple = "aarch64--linux-android"
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define ptr @f1(ptr %x0, ptr %x1) {
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; CHECK: f1:
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; CHECK: str x30, [sp, #-16]!
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: .cfi_offset w30, -16
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; CHECK-NEXT: mov x9, x0
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; CHECK-NEXT: mov x0, x1
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; CHECK-NEXT: bl __hwasan_check_x1_1
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; CHECK-NEXT: ldr x30, [sp], #16
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; CHECK-NEXT: ret
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call void @llvm.hwasan.check.memaccess(ptr %x0, ptr %x1, i32 1)
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ret ptr %x1
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}
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define ptr @f2(ptr %x0, ptr %x1) {
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; CHECK: f2:
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; CHECK: stp x30, x20, [sp, #-16]!
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: .cfi_offset w20, -8
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; CHECK-NEXT: .cfi_offset w30, -16
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; CHECK-NEXT: mov x20, x1
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; CHECK-NEXT: bl __hwasan_check_x0_2_short_v2
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; CHECK-NEXT: ldp x30, x20, [sp], #16
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; CHECK-NEXT: ret
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call void @llvm.hwasan.check.memaccess.shortgranules(ptr %x1, ptr %x0, i32 2)
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ret ptr %x0
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}
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define void @f3(ptr %x0, ptr %x1) {
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; 0x3ff0000 (kernel, match-all = 0xff)
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call void @llvm.hwasan.check.memaccess(ptr %x0, ptr %x1, i32 67043328)
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ret void
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}
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define void @f4(ptr %x0, ptr %x1) {
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; 0x1000010 (access-size-index = 0, is-write = 1, match-all = 0x0)
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call void @llvm.hwasan.check.memaccess.shortgranules(ptr %x0, ptr %x1, i32 16777232)
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ret void
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}
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declare void @llvm.hwasan.check.memaccess(ptr, ptr, i32)
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declare void @llvm.hwasan.check.memaccess.shortgranules(ptr, ptr, i32)
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; CHECK: .section .text.hot,"axG",@progbits,__hwasan_check_x0_2_short_v2,comdat
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; CHECK-NEXT: .type __hwasan_check_x0_2_short_v2,@function
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; CHECK-NEXT: .weak __hwasan_check_x0_2_short_v2
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; CHECK-NEXT: .hidden __hwasan_check_x0_2_short_v2
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; CHECK-NEXT: __hwasan_check_x0_2_short_v2:
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; CHECK-NEXT: sbfx x16, x0, #4, #52
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; CHECK-NEXT: ldrb w16, [x20, x16]
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; CHECK-NEXT: cmp x16, x0, lsr #56
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; CHECK-NEXT: b.ne .Ltmp0
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; CHECK-NEXT: .Ltmp1:
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; CHECK-NEXT: ret
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; CHECK-NEXT: .Ltmp0:
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; CHECK-NEXT: cmp w16, #15
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; CHECK-NEXT: b.hi .Ltmp2
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; CHECK-NEXT: and x17, x0, #0xf
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; CHECK-NEXT: add x17, x17, #3
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; CHECK-NEXT: cmp w16, w17
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; CHECK-NEXT: b.ls .Ltmp2
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; CHECK-NEXT: orr x16, x0, #0xf
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; CHECK-NEXT: ldrb w16, [x16]
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; CHECK-NEXT: cmp x16, x0, lsr #56
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; CHECK-NEXT: b.eq .Ltmp1
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; CHECK-NEXT: .Ltmp2:
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; CHECK-NEXT: stp x0, x1, [sp, #-256]!
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; CHECK-NEXT: stp x29, x30, [sp, #232]
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; CHECK-NEXT: mov x1, #2
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; CHECK-NEXT: adrp x16, :got:__hwasan_tag_mismatch_v2
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; CHECK-NEXT: ldr x16, [x16, :got_lo12:__hwasan_tag_mismatch_v2]
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; CHECK-NEXT: br x16
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; CHECK: .section .text.hot,"axG",@progbits,__hwasan_check_x1_1,comdat
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; CHECK-NEXT: .type __hwasan_check_x1_1,@function
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; CHECK-NEXT: .weak __hwasan_check_x1_1
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; CHECK-NEXT: .hidden __hwasan_check_x1_1
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; CHECK-NEXT: __hwasan_check_x1_1:
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; CHECK-NEXT: sbfx x16, x1, #4, #52
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; CHECK-NEXT: ldrb w16, [x9, x16]
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; CHECK-NEXT: cmp x16, x1, lsr #56
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; CHECK-NEXT: b.ne .Ltmp3
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; CHECK-NEXT: .Ltmp4:
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; CHECK-NEXT: ret
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; CHECK-NEXT: .Ltmp3:
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; CHECK-NEXT: stp x0, x1, [sp, #-256]!
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; CHECK-NEXT: stp x29, x30, [sp, #232]
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; CHECK-NEXT: mov x0, x1
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; CHECK-NEXT: mov x1, #1
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; CHECK-NEXT: adrp x16, :got:__hwasan_tag_mismatch
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; CHECK-NEXT: ldr x16, [x16, :got_lo12:__hwasan_tag_mismatch]
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; CHECK-NEXT: br x16
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; CHECK: __hwasan_check_x1_67043328:
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; CHECK-NEXT: sbfx x16, x1, #4, #52
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; CHECK-NEXT: ldrb w16, [x9, x16]
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; CHECK-NEXT: cmp x16, x1, lsr #56
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; CHECK-NEXT: b.ne .Ltmp5
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; CHECK-NEXT: .Ltmp6:
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; CHECK-NEXT: ret
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; CHECK-NEXT: .Ltmp5:
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; CHECK-NEXT: lsr x17, x1, #56
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; CHECK-NEXT: cmp x17, #255
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; CHECK-NEXT: b.eq .Ltmp6
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; CHECK-NEXT: stp x0, x1, [sp, #-256]!
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; CHECK-NEXT: stp x29, x30, [sp, #232]
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; CHECK-NEXT: mov x0, x1
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; CHECK-NEXT: mov x1, #0
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; CHECK-NEXT: b __hwasan_tag_mismatch
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; CHECK: __hwasan_check_x1_16777232_short_v2:
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; CHECK-NEXT: sbfx x16, x1, #4, #52
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; CHECK-NEXT: ldrb w16, [x20, x16]
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; CHECK-NEXT: cmp x16, x1, lsr #56
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; CHECK-NEXT: b.ne .Ltmp7
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; CHECK-NEXT: .Ltmp8:
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; CHECK-NEXT: ret
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; CHECK-NEXT: .Ltmp7:
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; CHECK-NEXT: lsr x17, x1, #56
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; CHECK-NEXT: cmp x17, #0
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; CHECK-NEXT: b.eq .Ltmp8
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; CHECK-NEXT: cmp w16, #15
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; CHECK-NEXT: b.hi .Ltmp9
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; CHECK-NEXT: and x17, x1, #0xf
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; CHECK-NEXT: cmp w16, w17
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; CHECK-NEXT: b.ls .Ltmp9
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; CHECK-NEXT: orr x16, x1, #0xf
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; CHECK-NEXT: ldrb w16, [x16]
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; CHECK-NEXT: cmp x16, x1, lsr #56
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; CHECK-NEXT: b.eq .Ltmp8
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; CHECK-NEXT: .Ltmp9:
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; CHECK-NEXT: stp x0, x1, [sp, #-256]!
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; CHECK-NEXT: stp x29, x30, [sp, #232]
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; CHECK-NEXT: mov x0, x1
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; CHECK-NEXT: mov x1, #16
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; CHECK-NEXT: adrp x16, :got:__hwasan_tag_mismatch_v2
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; CHECK-NEXT: ldr x16, [x16, :got_lo12:__hwasan_tag_mismatch_v2]
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; CHECK-NEXT: br x16
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