; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown -verify-machineinstrs | FileCheck %s --check-prefix=X64
; RUN: llc < %s -mtriple=i686-unknown -verify-machineinstrs | FileCheck %s --check-prefix=X86
; This test is targeted at 64-bit mode. It used to crash due to the creation of an EXTRACT_SUBREG after the peephole pass had ran.
define void @f() nounwind {
; X64-LABEL: f:
; X64: # %bb.0: # %BB
; X64-NEXT: movzbl (%rax), %eax
; X64-NEXT: cmpb $0, (%rax)
; X64-NEXT: setne (%rax)
; X64-NEXT: leaq -{{[0-9]+}}(%rsp), %rax
; X64-NEXT: movq %rax, (%rax)
; X64-NEXT: movb $0, (%rax)
; X64-NEXT: retq
;
; X86-LABEL: f:
; X86: # %bb.0: # %BB_udiv-special-cases
; X86-NEXT: pushl %ebp
; X86-NEXT: movl %esp, %ebp
; X86-NEXT: pushl %ebx
; X86-NEXT: pushl %edi
; X86-NEXT: pushl %esi
; X86-NEXT: andl $-16, %esp
; X86-NEXT: subl $176, %esp
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %edi
; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movzbl (%eax), %eax
; X86-NEXT: movzbl (%eax), %ecx
; X86-NEXT: movzbl %al, %eax
; X86-NEXT: movb %cl, {{[-0-9]+}}(%e{{[sb]}}p) # 1-byte Spill
; X86-NEXT: divb %cl
; X86-NEXT: movl %edi, %eax
; X86-NEXT: shll $30, %eax
; X86-NEXT: movl %eax, %ecx
; X86-NEXT: sarl $30, %ecx
; X86-NEXT: sarl $31, %eax
; X86-NEXT: xorl %eax, %edi
; X86-NEXT: xorl %eax, %edx
; X86-NEXT: shrdl $1, %eax, %ecx
; X86-NEXT: xorl %ecx, %esi
; X86-NEXT: subl %ecx, %esi
; X86-NEXT: sbbl %eax, %edx
; X86-NEXT: sbbl %eax, %edi
; X86-NEXT: movl %edi, %ecx
; X86-NEXT: shldl $30, %edx, %ecx
; X86-NEXT: movl %edx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: shldl $30, %esi, %edx
; X86-NEXT: testl %ecx, %ecx
; X86-NEXT: jne .LBB0_1
; X86-NEXT: # %bb.2: # %BB_udiv-special-cases
; X86-NEXT: bsrl %edx, %eax
; X86-NEXT: xorl $31, %eax
; X86-NEXT: orl $32, %eax
; X86-NEXT: jmp .LBB0_3
; X86-NEXT: .LBB0_1:
; X86-NEXT: bsrl %ecx, %eax
; X86-NEXT: xorl $31, %eax
; X86-NEXT: .LBB0_3: # %BB_udiv-special-cases
; X86-NEXT: movl %esi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: shll $30, %esi
; X86-NEXT: jne .LBB0_4
; X86-NEXT: # %bb.5: # %BB_udiv-special-cases
; X86-NEXT: movl $64, %esi
; X86-NEXT: orl %ecx, %edx
; X86-NEXT: je .LBB0_7
; X86-NEXT: jmp .LBB0_8
; X86-NEXT: .LBB0_4:
; X86-NEXT: bsrl %esi, %esi
; X86-NEXT: xorl $31, %esi
; X86-NEXT: orl %ecx, %edx
; X86-NEXT: jne .LBB0_8
; X86-NEXT: .LBB0_7: # %BB_udiv-special-cases
; X86-NEXT: addl $64, %esi
; X86-NEXT: movl %esi, %eax
; X86-NEXT: .LBB0_8: # %BB_udiv-special-cases
; X86-NEXT: leal {{[0-9]+}}(%esp), %esi
; X86-NEXT: addl $-66, %eax
; X86-NEXT: movl $0, %ebx
; X86-NEXT: adcl $-1, %ebx
; X86-NEXT: movl $0, %edx
; X86-NEXT: adcl $3, %edx
; X86-NEXT: movb $1, %cl
; X86-NEXT: testb %cl, %cl
; X86-NEXT: jne .LBB0_14
; X86-NEXT: # %bb.9: # %BB_udiv-special-cases
; X86-NEXT: andl $3, %edx
; X86-NEXT: movl %eax, %ecx
; X86-NEXT: xorl $65, %ecx
; X86-NEXT: orl %edx, %ecx
; X86-NEXT: orl %ebx, %ecx
; X86-NEXT: je .LBB0_14
; X86-NEXT: # %bb.10: # %udiv-bb1
; X86-NEXT: movl %eax, %ecx
; X86-NEXT: addl $1, %ecx
; X86-NEXT: movl %ecx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: adcl $0, %ebx
; X86-NEXT: movl %ebx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: adcl $0, %edx
; X86-NEXT: andl $3, %edx
; X86-NEXT: movl %edx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movb $65, %cl
; X86-NEXT: subb %al, %cl
; X86-NEXT: movb %cl, %ch
; X86-NEXT: andb $7, %ch
; X86-NEXT: shrb $3, %cl
; X86-NEXT: andb $15, %cl
; X86-NEXT: negb %cl
; X86-NEXT: movsbl %cl, %esi
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl %edi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movl 136(%esp,%esi), %edi
; X86-NEXT: movb %ch, %cl
; X86-NEXT: shll %cl, %edi
; X86-NEXT: notb %cl
; X86-NEXT: movl 128(%esp,%esi), %ebx
; X86-NEXT: movl 132(%esp,%esi), %eax
; X86-NEXT: movl %eax, %esi
; X86-NEXT: shrl %esi
; X86-NEXT: shrl %cl, %esi
; X86-NEXT: movb %ch, %cl
; X86-NEXT: shldl %cl, %ebx, %eax
; X86-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: shll %cl, %ebx
; X86-NEXT: movl %ebx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %ecx # 4-byte Reload
; X86-NEXT: orl %edx, %ecx
; X86-NEXT: orl {{[-0-9]+}}(%e{{[sb]}}p), %ecx # 4-byte Folded Reload
; X86-NEXT: je .LBB0_13
; X86-NEXT: # %bb.11: # %udiv-preheader
; X86-NEXT: andl $3, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Folded Spill
; X86-NEXT: orl %esi, %edi
; X86-NEXT: andl $3, %edi
; X86-NEXT: movl %edi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl $0, {{[0-9]+}}(%esp)
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; X86-NEXT: movb %al, %ch
; X86-NEXT: andb $7, %ch
; X86-NEXT: # kill: def $al killed $al killed $eax
; X86-NEXT: shrb $3, %al
; X86-NEXT: andb $15, %al
; X86-NEXT: movzbl %al, %edx
; X86-NEXT: movl 80(%esp,%edx), %edi
; X86-NEXT: movl 84(%esp,%edx), %eax
; X86-NEXT: movl %eax, %esi
; X86-NEXT: movb %ch, %cl
; X86-NEXT: shrl %cl, %esi
; X86-NEXT: notb %cl
; X86-NEXT: movl 88(%esp,%edx), %ebx
; X86-NEXT: addl %ebx, %ebx
; X86-NEXT: shll %cl, %ebx
; X86-NEXT: orl %esi, %ebx
; X86-NEXT: movb %ch, %cl
; X86-NEXT: shrdl %cl, %eax, %edi
; X86-NEXT: movl %edi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movl $0, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Folded Spill
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; X86-NEXT: addl $-1, %eax
; X86-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; X86-NEXT: adcl $-1, %eax
; X86-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; X86-NEXT: adcl $3, %eax
; X86-NEXT: andl $3, %eax
; X86-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movl $0, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Folded Spill
; X86-NEXT: xorl %ecx, %ecx
; X86-NEXT: .p2align 4, 0x90
; X86-NEXT: .LBB0_12: # %udiv-do-while
; X86-NEXT: # =>This Inner Loop Header: Depth=1
; X86-NEXT: shldl $1, %ebx, %ecx
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %edi # 4-byte Reload
; X86-NEXT: shldl $1, %edi, %ebx
; X86-NEXT: movl %ebx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %esi # 4-byte Reload
; X86-NEXT: movl %esi, %eax
; X86-NEXT: andl $2, %eax
; X86-NEXT: shrl %eax
; X86-NEXT: leal (%eax,%edi,2), %edi
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %edx # 4-byte Reload
; X86-NEXT: shldl $1, %edx, %esi
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %ebx # 4-byte Reload
; X86-NEXT: orl %ebx, %esi
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; X86-NEXT: shldl $1, %eax, %edx
; X86-NEXT: orl %ebx, %edx
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %ebx # 4-byte Reload
; X86-NEXT: movl %edx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: addl %eax, %eax
; X86-NEXT: orl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Folded Reload
; X86-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: andl $3, %esi
; X86-NEXT: movl %esi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: cmpl %edi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Folded Reload
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; X86-NEXT: sbbl %ebx, %eax
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %esi # 4-byte Reload
; X86-NEXT: sbbl %ecx, %esi
; X86-NEXT: shll $30, %esi
; X86-NEXT: movl %esi, %eax
; X86-NEXT: sarl $30, %eax
; X86-NEXT: sarl $31, %esi
; X86-NEXT: shrdl $1, %esi, %eax
; X86-NEXT: movl %eax, %edx
; X86-NEXT: andl $1, %edx
; X86-NEXT: movl %edx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: andl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Folded Reload
; X86-NEXT: movl %esi, %edx
; X86-NEXT: andl {{[-0-9]+}}(%e{{[sb]}}p), %edx # 4-byte Folded Reload
; X86-NEXT: andl {{[-0-9]+}}(%e{{[sb]}}p), %esi # 4-byte Folded Reload
; X86-NEXT: subl %eax, %edi
; X86-NEXT: movl %edi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: sbbl %esi, %ebx
; X86-NEXT: sbbl %edx, %ecx
; X86-NEXT: andl $3, %ecx
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; X86-NEXT: addl $-1, %eax
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %edx # 4-byte Reload
; X86-NEXT: adcl $-1, %edx
; X86-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %esi # 4-byte Reload
; X86-NEXT: adcl $3, %esi
; X86-NEXT: andl $3, %esi
; X86-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: movl %esi, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: orl %esi, %eax
; X86-NEXT: movl %edx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; X86-NEXT: orl %edx, %eax
; X86-NEXT: jne .LBB0_12
; X86-NEXT: .LBB0_13: # %udiv-loop-exit
; X86-NEXT: leal {{[0-9]+}}(%esp), %esi
; X86-NEXT: .LBB0_14: # %udiv-end
; X86-NEXT: cmpb $0, {{[-0-9]+}}(%e{{[sb]}}p) # 1-byte Folded Reload
; X86-NEXT: setne (%eax)
; X86-NEXT: movl %esi, (%eax)
; X86-NEXT: movb $0, (%eax)
; X86-NEXT: leal -12(%ebp), %esp
; X86-NEXT: popl %esi
; X86-NEXT: popl %edi
; X86-NEXT: popl %ebx
; X86-NEXT: popl %ebp
; X86-NEXT: retl
BB:
%A30 = alloca i66
%L17 = load i66, ptr %A30
%B20 = and i66 %L17, -1
%G2 = getelementptr i66, ptr %A30, i1 true
%L10 = load volatile i8, ptr undef
%L11 = load volatile i8, ptr undef
%B6 = udiv i8 %L10, %L11
%C15 = icmp eq i8 %L11, 0
%B8 = srem i66 0, %B20
%C2 = icmp ule i66 %B8, %B20
%B5 = or i8 0, %B6
%C19 = icmp uge i1 false, %C2
%C1 = icmp sle i8 undef, %B5
%B37 = srem i1 %C1, %C2
%C7 = icmp uge i1 false, %C15
store i1 %C7, ptr undef
%G6 = getelementptr i66, ptr %G2, i1 %B37
store ptr %G6, ptr undef
%B30 = srem i1 %C19, %C7
store i1 %B30, ptr undef
ret void
}
; Similar to above, but bitwidth adjusted to target 32-bit mode. This also shows that we didn't constrain the register class when extracting a subreg.
define void @g() nounwind {
; X64-LABEL: g:
; X64: # %bb.0: # %BB
; X64-NEXT: movzbl (%rax), %eax
; X64-NEXT: cmpb $0, (%rax)
; X64-NEXT: setne (%rax)
; X64-NEXT: leaq -{{[0-9]+}}(%rsp), %rax
; X64-NEXT: movq %rax, (%rax)
; X64-NEXT: movb $0, (%rax)
; X64-NEXT: retq
;
; X86-LABEL: g:
; X86: # %bb.0: # %BB
; X86-NEXT: pushl %ebp
; X86-NEXT: movl %esp, %ebp
; X86-NEXT: andl $-8, %esp
; X86-NEXT: subl $8, %esp
; X86-NEXT: movzbl (%eax), %eax
; X86-NEXT: cmpb $0, (%eax)
; X86-NEXT: setne (%eax)
; X86-NEXT: leal -{{[0-9]+}}(%esp), %eax
; X86-NEXT: movl %eax, (%eax)
; X86-NEXT: movb $0, (%eax)
; X86-NEXT: movl %ebp, %esp
; X86-NEXT: popl %ebp
; X86-NEXT: retl
BB:
%A30 = alloca i34
%L17 = load i34, ptr %A30
%B20 = and i34 %L17, -1
%G2 = getelementptr i34, ptr %A30, i1 true
%L10 = load volatile i8, ptr undef
%L11 = load volatile i8, ptr undef
%B6 = udiv i8 %L10, %L11
%C15 = icmp eq i8 %L11, 0
%B8 = srem i34 0, %B20
%C2 = icmp ule i34 %B8, %B20
%B5 = or i8 0, %B6
%C19 = icmp uge i1 false, %C2
%C1 = icmp sle i8 undef, %B5
%B37 = srem i1 %C1, %C2
%C7 = icmp uge i1 false, %C15
store i1 %C7, ptr undef
%G6 = getelementptr i34, ptr %G2, i1 %B37
store ptr %G6, ptr undef
%B30 = srem i1 %C19, %C7
store i1 %B30, ptr undef
ret void
}
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