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llvm-mirror/test/CodeGen/X86/stack-folding-adx.mir
Craig Topper 933eddb428 [X86] Clean up some mir tests with INLINEASM to avoid regdef or to correct the immediate for the regdef. 
The immediate used for the regdef is the encoding for the register
class in the enum generated by tablegen. This encoding will change
any time a new register class is added. Since the number is part
of the input, this means it can become stale.

This change modifies some test to avoid this kind of immediate
all together. And updates one test to use the current encoding of
GR64.
2020-04-17 21:55:44 -07:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -o - -mtriple=x86_64-- -run-pass=greedy %s | FileCheck %s
# Tests for stack folding ADCX and ADOX. The ADOX tests were manually constructed by modifying ADCX tests to use OF instead of CF.
--- |
; Function Attrs: nounwind
define i8 @stack_fold_adcx32(i8 %a0, i32 %a1, i32 %a2, i8* %a3) #0 {
tail call void asm sideeffect "nop", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%1 = call { i8, i32 } @llvm.x86.addcarry.32(i8 %a0, i32 %a1, i32 %a2)
%2 = extractvalue { i8, i32 } %1, 1
%3 = bitcast i8* %a3 to i32*
store i32 %2, i32* %3, align 1
%4 = extractvalue { i8, i32 } %1, 0
ret i8 %4
}
; Function Attrs: nounwind
define i8 @stack_fold_adcx64(i8 %a0, i64 %a1, i64 %a2, i8* %a3) #0 {
tail call void asm sideeffect "nop", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%1 = call { i8, i64 } @llvm.x86.addcarry.64(i8 %a0, i64 %a1, i64 %a2)
%2 = extractvalue { i8, i64 } %1, 1
%3 = bitcast i8* %a3 to i64*
store i64 %2, i64* %3, align 1
%4 = extractvalue { i8, i64 } %1, 0
ret i8 %4
}
; Function Attrs: nounwind
define i8 @stack_fold_adox32(i8 %a0, i32 %a1, i32 %a2, i8* %a3) #0 {
tail call void asm sideeffect "nop", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%1 = call { i8, i32 } @llvm.x86.addcarry.32(i8 %a0, i32 %a1, i32 %a2)
%2 = extractvalue { i8, i32 } %1, 1
%3 = bitcast i8* %a3 to i32*
store i32 %2, i32* %3, align 1
%4 = extractvalue { i8, i32 } %1, 0
ret i8 %4
}
; Function Attrs: nounwind
define i8 @stack_fold_adox64(i8 %a0, i64 %a1, i64 %a2, i8* %a3) #0 {
tail call void asm sideeffect "nop", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%1 = call { i8, i64 } @llvm.x86.addcarry.64(i8 %a0, i64 %a1, i64 %a2)
%2 = extractvalue { i8, i64 } %1, 1
%3 = bitcast i8* %a3 to i64*
store i64 %2, i64* %3, align 1
%4 = extractvalue { i8, i64 } %1, 0
ret i8 %4
}
; Function Attrs: nounwind readnone
declare { i8, i32 } @llvm.x86.addcarry.32(i8, i32, i32) #1
; Function Attrs: nounwind readnone
declare { i8, i64 } @llvm.x86.addcarry.64(i8, i64, i64) #1
; Function Attrs: nounwind
declare void @llvm.stackprotector(i8*, i8**) #2
attributes #0 = { nounwind "target-features"="+adx" }
attributes #1 = { nounwind readnone "target-features"="+adx" }
attributes #2 = { nounwind }
...
---
name: stack_fold_adcx32
alignment: 16
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
- { id: 1, class: gr32 }
- { id: 2, class: gr32 }
- { id: 3, class: gr64 }
- { id: 4, class: gr8 }
- { id: 5, class: gr8 }
- { id: 6, class: gr32 }
- { id: 7, class: gr8 }
liveins:
- { reg: '$edi', virtual-reg: '%0' }
- { reg: '$esi', virtual-reg: '%1' }
- { reg: '$edx', virtual-reg: '%2' }
- { reg: '$rcx', virtual-reg: '%3' }
body: |
bb.0 (%ir-block.0):
liveins: $edi, $esi, $edx, $rcx
; CHECK-LABEL: name: stack_fold_adcx32
; CHECK: liveins: $edi, $esi, $edx, $rcx
; CHECK: MOV64mr %stack.0, 1, $noreg, 0, $noreg, $rcx :: (store 8 into %stack.0)
; CHECK: MOV32mr %stack.1, 1, $noreg, 0, $noreg, $edx :: (store 4 into %stack.1)
; CHECK: MOV32mr %stack.2, 1, $noreg, 0, $noreg, $esi :: (store 4 into %stack.2)
; CHECK: MOV32mr %stack.3, 1, $noreg, 0, $noreg, $edi :: (store 4 into %stack.3)
; CHECK: INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
; CHECK: [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm %stack.3, 1, $noreg, 0, $noreg :: (load 4 from %stack.3)
; CHECK: dead [[MOV32rm]].sub_8bit:gr32 = ADD8ri [[MOV32rm]].sub_8bit, -1, implicit-def $eflags
; CHECK: [[MOV32rm1:%[0-9]+]]:gr32 = MOV32rm %stack.2, 1, $noreg, 0, $noreg :: (load 4 from %stack.2)
; CHECK: [[ADCX32rm:%[0-9]+]]:gr32 = ADCX32rm [[ADCX32rm]], %stack.1, 1, $noreg, 0, $noreg, implicit-def $eflags, implicit killed $eflags :: (load 4 from %stack.1)
; CHECK: [[SETCCr:%[0-9]+]]:gr8 = SETCCr 2, implicit killed $eflags
; CHECK: [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm %stack.0, 1, $noreg, 0, $noreg :: (load 8 from %stack.0)
; CHECK: MOV32mr [[MOV64rm]], 1, $noreg, 0, $noreg, [[ADCX32rm]] :: (store 4 into %ir.3, align 1)
; CHECK: $al = COPY [[SETCCr]]
; CHECK: RET 0, $al
%3:gr64 = COPY $rcx
%2:gr32 = COPY $edx
%6:gr32 = COPY $esi
%0:gr32 = COPY $edi
INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
dead %0.sub_8bit:gr32 = ADD8ri %0.sub_8bit, -1, implicit-def $eflags
%6:gr32 = ADCX32rr %6, %2, implicit-def $eflags, implicit killed $eflags
%7:gr8 = SETCCr 2, implicit killed $eflags
MOV32mr %3, 1, $noreg, 0, $noreg, %6 :: (store 4 into %ir.3, align 1)
$al = COPY %7
RET 0, killed $al
...
---
name: stack_fold_adcx64
alignment: 16
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
- { id: 1, class: gr64 }
- { id: 2, class: gr64 }
- { id: 3, class: gr64 }
- { id: 4, class: gr8 }
- { id: 5, class: gr8 }
- { id: 6, class: gr64 }
- { id: 7, class: gr8 }
liveins:
- { reg: '$edi', virtual-reg: '%0' }
- { reg: '$rsi', virtual-reg: '%1' }
- { reg: '$rdx', virtual-reg: '%2' }
- { reg: '$rcx', virtual-reg: '%3' }
body: |
bb.0 (%ir-block.0):
liveins: $edi, $rsi, $rdx, $rcx
; CHECK-LABEL: name: stack_fold_adcx64
; CHECK: liveins: $edi, $rsi, $rdx, $rcx
; CHECK: MOV64mr %stack.0, 1, $noreg, 0, $noreg, $rcx :: (store 8 into %stack.0)
; CHECK: MOV64mr %stack.1, 1, $noreg, 0, $noreg, $rdx :: (store 8 into %stack.1)
; CHECK: MOV64mr %stack.2, 1, $noreg, 0, $noreg, $rsi :: (store 8 into %stack.2)
; CHECK: MOV32mr %stack.3, 1, $noreg, 0, $noreg, $edi :: (store 4 into %stack.3)
; CHECK: INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
; CHECK: [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm %stack.3, 1, $noreg, 0, $noreg :: (load 4 from %stack.3)
; CHECK: dead [[MOV32rm]].sub_8bit:gr32 = ADD8ri [[MOV32rm]].sub_8bit, -1, implicit-def $eflags
; CHECK: [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm %stack.2, 1, $noreg, 0, $noreg :: (load 8 from %stack.2)
; CHECK: [[ADCX64rm:%[0-9]+]]:gr64 = ADCX64rm [[ADCX64rm]], %stack.1, 1, $noreg, 0, $noreg, implicit-def $eflags, implicit killed $eflags :: (load 8 from %stack.1)
; CHECK: [[SETCCr:%[0-9]+]]:gr8 = SETCCr 2, implicit killed $eflags
; CHECK: [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm %stack.0, 1, $noreg, 0, $noreg :: (load 8 from %stack.0)
; CHECK: MOV64mr [[MOV64rm]], 1, $noreg, 0, $noreg, [[ADCX64rm]] :: (store 8 into %ir.3, align 1)
; CHECK: $al = COPY [[SETCCr]]
; CHECK: RET 0, $al
%3:gr64 = COPY $rcx
%2:gr64 = COPY $rdx
%6:gr64 = COPY $rsi
%0:gr32 = COPY $edi
INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
dead %0.sub_8bit:gr32 = ADD8ri %0.sub_8bit, -1, implicit-def $eflags
%6:gr64 = ADCX64rr %6, %2, implicit-def $eflags, implicit killed $eflags
%7:gr8 = SETCCr 2, implicit killed $eflags
MOV64mr %3, 1, $noreg, 0, $noreg, %6 :: (store 8 into %ir.3, align 1)
$al = COPY %7
RET 0, killed $al
...
---
name: stack_fold_adox32
alignment: 16
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
- { id: 1, class: gr32 }
- { id: 2, class: gr32 }
- { id: 3, class: gr64 }
- { id: 4, class: gr8 }
- { id: 5, class: gr8 }
- { id: 6, class: gr32 }
- { id: 7, class: gr8 }
liveins:
- { reg: '$edi', virtual-reg: '%0' }
- { reg: '$esi', virtual-reg: '%1' }
- { reg: '$edx', virtual-reg: '%2' }
- { reg: '$rcx', virtual-reg: '%3' }
body: |
bb.0 (%ir-block.0):
liveins: $edi, $esi, $edx, $rcx
; CHECK-LABEL: name: stack_fold_adox32
; CHECK: liveins: $edi, $esi, $edx, $rcx
; CHECK: MOV64mr %stack.0, 1, $noreg, 0, $noreg, $rcx :: (store 8 into %stack.0)
; CHECK: MOV32mr %stack.1, 1, $noreg, 0, $noreg, $edx :: (store 4 into %stack.1)
; CHECK: MOV32mr %stack.2, 1, $noreg, 0, $noreg, $esi :: (store 4 into %stack.2)
; CHECK: MOV32mr %stack.3, 1, $noreg, 0, $noreg, $edi :: (store 4 into %stack.3)
; CHECK: INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
; CHECK: [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm %stack.3, 1, $noreg, 0, $noreg :: (load 4 from %stack.3)
; CHECK: dead [[MOV32rm]].sub_8bit:gr32 = ADD8ri [[MOV32rm]].sub_8bit, -1, implicit-def $eflags
; CHECK: [[MOV32rm1:%[0-9]+]]:gr32 = MOV32rm %stack.2, 1, $noreg, 0, $noreg :: (load 4 from %stack.2)
; CHECK: [[ADOX32rm:%[0-9]+]]:gr32 = ADOX32rm [[ADOX32rm]], %stack.1, 1, $noreg, 0, $noreg, implicit-def $eflags, implicit killed $eflags :: (load 4 from %stack.1)
; CHECK: [[SETCCr:%[0-9]+]]:gr8 = SETCCr 2, implicit killed $eflags
; CHECK: [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm %stack.0, 1, $noreg, 0, $noreg :: (load 8 from %stack.0)
; CHECK: MOV32mr [[MOV64rm]], 1, $noreg, 0, $noreg, [[ADOX32rm]] :: (store 4 into %ir.3, align 1)
; CHECK: $al = COPY [[SETCCr]]
; CHECK: RET 0, $al
%3:gr64 = COPY $rcx
%2:gr32 = COPY $edx
%6:gr32 = COPY $esi
%0:gr32 = COPY $edi
INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
dead %0.sub_8bit:gr32 = ADD8ri %0.sub_8bit, -1, implicit-def $eflags
%6:gr32 = ADOX32rr %6, %2, implicit-def $eflags, implicit killed $eflags
%7:gr8 = SETCCr 2, implicit killed $eflags
MOV32mr %3, 1, $noreg, 0, $noreg, %6 :: (store 4 into %ir.3, align 1)
$al = COPY %7
RET 0, killed $al
...
---
name: stack_fold_adox64
alignment: 16
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
- { id: 1, class: gr64 }
- { id: 2, class: gr64 }
- { id: 3, class: gr64 }
- { id: 4, class: gr8 }
- { id: 5, class: gr8 }
- { id: 6, class: gr64 }
- { id: 7, class: gr8 }
liveins:
- { reg: '$edi', virtual-reg: '%0' }
- { reg: '$rsi', virtual-reg: '%1' }
- { reg: '$rdx', virtual-reg: '%2' }
- { reg: '$rcx', virtual-reg: '%3' }
body: |
bb.0 (%ir-block.0):
liveins: $edi, $rsi, $rdx, $rcx
; CHECK-LABEL: name: stack_fold_adox64
; CHECK: liveins: $edi, $rsi, $rdx, $rcx
; CHECK: MOV64mr %stack.0, 1, $noreg, 0, $noreg, $rcx :: (store 8 into %stack.0)
; CHECK: MOV64mr %stack.1, 1, $noreg, 0, $noreg, $rdx :: (store 8 into %stack.1)
; CHECK: MOV64mr %stack.2, 1, $noreg, 0, $noreg, $rsi :: (store 8 into %stack.2)
; CHECK: MOV32mr %stack.3, 1, $noreg, 0, $noreg, $edi :: (store 4 into %stack.3)
; CHECK: INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
; CHECK: [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm %stack.3, 1, $noreg, 0, $noreg :: (load 4 from %stack.3)
; CHECK: dead [[MOV32rm]].sub_8bit:gr32 = ADD8ri [[MOV32rm]].sub_8bit, -1, implicit-def $eflags
; CHECK: [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm %stack.2, 1, $noreg, 0, $noreg :: (load 8 from %stack.2)
; CHECK: [[ADOX64rm:%[0-9]+]]:gr64 = ADOX64rm [[ADOX64rm]], %stack.1, 1, $noreg, 0, $noreg, implicit-def $eflags, implicit killed $eflags :: (load 8 from %stack.1)
; CHECK: [[SETCCr:%[0-9]+]]:gr8 = SETCCr 2, implicit killed $eflags
; CHECK: [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm %stack.0, 1, $noreg, 0, $noreg :: (load 8 from %stack.0)
; CHECK: MOV64mr [[MOV64rm]], 1, $noreg, 0, $noreg, [[ADOX64rm]] :: (store 8 into %ir.3, align 1)
; CHECK: $al = COPY [[SETCCr]]
; CHECK: RET 0, $al
%3:gr64 = COPY $rcx
%2:gr64 = COPY $rdx
%6:gr64 = COPY $rsi
%0:gr32 = COPY $edi
INLINEASM &nop, 1 /* sideeffect attdialect */, 12 /* clobber */, implicit-def dead early-clobber $rax, 12 /* clobber */, implicit-def dead early-clobber $rbx, 12 /* clobber */, implicit-def dead early-clobber $rcx, 12 /* clobber */, implicit-def dead early-clobber $rdx, 12 /* clobber */, implicit-def dead early-clobber $rsi, 12 /* clobber */, implicit-def dead early-clobber $rdi, 12 /* clobber */, implicit-def dead early-clobber $rbp, 12 /* clobber */, implicit-def dead early-clobber $r8, 12 /* clobber */, implicit-def dead early-clobber $r9, 12 /* clobber */, implicit-def dead early-clobber $r10, 12 /* clobber */, implicit-def dead early-clobber $r11, 12 /* clobber */, implicit-def dead early-clobber $r12, 12 /* clobber */, implicit-def dead early-clobber $r13, 12 /* clobber */, implicit-def dead early-clobber $r14, 12 /* clobber */, implicit-def dead early-clobber $r15
dead %0.sub_8bit:gr32 = ADD8ri %0.sub_8bit, -1, implicit-def $eflags
%6:gr64 = ADOX64rr %6, %2, implicit-def $eflags, implicit killed $eflags
%7:gr8 = SETCCr 2, implicit killed $eflags
MOV64mr %3, 1, $noreg, 0, $noreg, %6 :: (store 8 into %ir.3, align 1)
$al = COPY %7
RET 0, killed $al
...
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