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llvm-project/llvm/test/CodeGen/X86/conditional-tailcall.ll
Daniel Paoliello b3458fdec5
[llvm] Win x64 Unwind V2 1/n: Mark beginning and end of epilogs (#110024) 
Windows x64 Unwind V2 adds epilog information to unwind data:
specifically, the length of the epilog and the offset of each epilog.

The first step to do this is to add markers to the beginning and end of
each epilog when generating Windows x64 code. I've modelled this after
how LLVM was marking ARM and AArch64 epilogs in Windows (and unified the
code between the three).
2025-01-30 13:51:30 -08:00

600 lines
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LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-linux -show-mc-encoding | FileCheck %s --check-prefix=CHECK32
; RUN: llc < %s -mtriple=x86_64-linux -show-mc-encoding | FileCheck %s --check-prefix=CHECK64
; RUN: llc < %s -mtriple=x86_64-win32 -show-mc-encoding | FileCheck %s --check-prefix=WIN64
declare dso_local void @foo()
declare dso_local void @bar()
define void @f(i32 %x, i32 %y) optsize {
; CHECK32-LABEL: f:
; CHECK32: # %bb.0: # %entry
; CHECK32-NEXT: movl {{[0-9]+}}(%esp), %eax # encoding: [0x8b,0x44,0x24,0x04]
; CHECK32-NEXT: cmpl {{[0-9]+}}(%esp), %eax # encoding: [0x3b,0x44,0x24,0x08]
; CHECK32-NEXT: jne bar # TAILCALL
; CHECK32-NEXT: # encoding: [0x75,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1
; CHECK32-NEXT: # %bb.1: # %bb1
; CHECK32-NEXT: jmp foo # TAILCALL
; CHECK32-NEXT: # encoding: [0xeb,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: foo-1, kind: FK_PCRel_1
;
; CHECK64-LABEL: f:
; CHECK64: # %bb.0: # %entry
; CHECK64-NEXT: cmpl %esi, %edi # encoding: [0x39,0xf7]
; CHECK64-NEXT: jne bar # TAILCALL
; CHECK64-NEXT: # encoding: [0x75,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1
; CHECK64-NEXT: # %bb.1: # %bb1
; CHECK64-NEXT: jmp foo # TAILCALL
; CHECK64-NEXT: # encoding: [0xeb,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: foo-1, kind: FK_PCRel_1
;
; WIN64-LABEL: f:
; WIN64: # %bb.0: # %entry
; WIN64-NEXT: cmpl %edx, %ecx # encoding: [0x39,0xd1]
; WIN64-NEXT: jne bar # TAILCALL
; WIN64-NEXT: # encoding: [0x75,A]
; WIN64-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1
; WIN64-NEXT: # %bb.1: # %bb1
; WIN64-NEXT: jmp foo # TAILCALL
; WIN64-NEXT: # encoding: [0xeb,A]
; WIN64-NEXT: # fixup A - offset: 1, value: foo-1, kind: FK_PCRel_1
entry:
%p = icmp eq i32 %x, %y
br i1 %p, label %bb1, label %bb2
bb1:
tail call void @foo()
ret void
bb2:
tail call void @bar()
ret void
; Check that the asm doesn't just look good, but uses the correct encoding.
}
define void @f_non_leaf(i32 %x, i32 %y) optsize {
; CHECK32-LABEL: f_non_leaf:
; CHECK32: # %bb.0: # %entry
; CHECK32-NEXT: pushl %ebx # encoding: [0x53]
; CHECK32-NEXT: .cfi_def_cfa_offset 8
; CHECK32-NEXT: .cfi_offset %ebx, -8
; CHECK32-NEXT: movl {{[0-9]+}}(%esp), %eax # encoding: [0x8b,0x44,0x24,0x08]
; CHECK32-NEXT: #APP
; CHECK32-NEXT: #NO_APP
; CHECK32-NEXT: cmpl {{[0-9]+}}(%esp), %eax # encoding: [0x3b,0x44,0x24,0x0c]
; CHECK32-NEXT: jne .LBB1_2 # encoding: [0x75,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB1_2-1, kind: FK_PCRel_1
; CHECK32-NEXT: # %bb.1: # %bb1
; CHECK32-NEXT: popl %ebx # encoding: [0x5b]
; CHECK32-NEXT: .cfi_def_cfa_offset 4
; CHECK32-NEXT: jmp foo # TAILCALL
; CHECK32-NEXT: # encoding: [0xeb,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: foo-1, kind: FK_PCRel_1
; CHECK32-NEXT: .LBB1_2: # %bb2
; CHECK32-NEXT: .cfi_def_cfa_offset 8
; CHECK32-NEXT: popl %ebx # encoding: [0x5b]
; CHECK32-NEXT: .cfi_def_cfa_offset 4
; CHECK32-NEXT: jmp bar # TAILCALL
; CHECK32-NEXT: # encoding: [0xeb,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1
;
; CHECK64-LABEL: f_non_leaf:
; CHECK64: # %bb.0: # %entry
; CHECK64-NEXT: pushq %rbx # encoding: [0x53]
; CHECK64-NEXT: .cfi_def_cfa_offset 16
; CHECK64-NEXT: .cfi_offset %rbx, -16
; CHECK64-NEXT: #APP
; CHECK64-NEXT: #NO_APP
; CHECK64-NEXT: cmpl %esi, %edi # encoding: [0x39,0xf7]
; CHECK64-NEXT: jne .LBB1_2 # encoding: [0x75,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB1_2-1, kind: FK_PCRel_1
; CHECK64-NEXT: # %bb.1: # %bb1
; CHECK64-NEXT: popq %rbx # encoding: [0x5b]
; CHECK64-NEXT: .cfi_def_cfa_offset 8
; CHECK64-NEXT: jmp foo # TAILCALL
; CHECK64-NEXT: # encoding: [0xeb,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: foo-1, kind: FK_PCRel_1
; CHECK64-NEXT: .LBB1_2: # %bb2
; CHECK64-NEXT: .cfi_def_cfa_offset 16
; CHECK64-NEXT: popq %rbx # encoding: [0x5b]
; CHECK64-NEXT: .cfi_def_cfa_offset 8
; CHECK64-NEXT: jmp bar # TAILCALL
; CHECK64-NEXT: # encoding: [0xeb,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1
;
; WIN64-LABEL: f_non_leaf:
; WIN64: # %bb.0: # %entry
; WIN64-NEXT: pushq %rbx # encoding: [0x53]
; WIN64-NEXT: .seh_pushreg %rbx
; WIN64-NEXT: .seh_endprologue
; WIN64-NEXT: #APP
; WIN64-NEXT: #NO_APP
; WIN64-NEXT: cmpl %edx, %ecx # encoding: [0x39,0xd1]
; WIN64-NEXT: jne .LBB1_2 # encoding: [0x75,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB1_2-1, kind: FK_PCRel_1
; WIN64-NEXT: # %bb.1: # %bb1
; WIN64-NEXT: .seh_startepilogue
; WIN64-NEXT: popq %rbx # encoding: [0x5b]
; WIN64-NEXT: .seh_endepilogue
; WIN64-NEXT: jmp foo # TAILCALL
; WIN64-NEXT: # encoding: [0xeb,A]
; WIN64-NEXT: # fixup A - offset: 1, value: foo-1, kind: FK_PCRel_1
; WIN64-NEXT: .LBB1_2: # %bb2
; WIN64-NEXT: nop # encoding: [0x90]
; WIN64-NEXT: .seh_startepilogue
; WIN64-NEXT: popq %rbx # encoding: [0x5b]
; WIN64-NEXT: .seh_endepilogue
; WIN64-NEXT: jmp bar # TAILCALL
; WIN64-NEXT: # encoding: [0xeb,A]
; WIN64-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1
; WIN64-NEXT: .seh_endproc
entry:
; Force %ebx to be spilled on the stack, turning this into
; not a "leaf" function for Win64.
tail call void asm sideeffect "", "~{ebx}"()
%p = icmp eq i32 %x, %y
br i1 %p, label %bb1, label %bb2
bb1:
tail call void @foo()
ret void
bb2:
tail call void @bar()
ret void
}
declare dso_local x86_thiscallcc zeroext i1 @baz(ptr, i32)
define x86_thiscallcc zeroext i1 @BlockPlacementTest(ptr %this, i32 %x) optsize {
; CHECK32-LABEL: BlockPlacementTest:
; CHECK32: # %bb.0: # %entry
; CHECK32-NEXT: movl {{[0-9]+}}(%esp), %edx # encoding: [0x8b,0x54,0x24,0x04]
; CHECK32-NEXT: testb $42, %dl # encoding: [0xf6,0xc2,0x2a]
; CHECK32-NEXT: je .LBB2_3 # encoding: [0x74,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB2_3-1, kind: FK_PCRel_1
; CHECK32-NEXT: # %bb.1: # %land.rhs
; CHECK32-NEXT: movb $1, %al # encoding: [0xb0,0x01]
; CHECK32-NEXT: testb $44, %dl # encoding: [0xf6,0xc2,0x2c]
; CHECK32-NEXT: je baz # TAILCALL
; CHECK32-NEXT: # encoding: [0x74,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: baz-1, kind: FK_PCRel_1
; CHECK32-NEXT: .LBB2_2: # %land.end
; CHECK32-NEXT: # kill: def $al killed $al killed $eax
; CHECK32-NEXT: retl $4 # encoding: [0xc2,0x04,0x00]
; CHECK32-NEXT: .LBB2_3:
; CHECK32-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0]
; CHECK32-NEXT: jmp .LBB2_2 # encoding: [0xeb,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB2_2-1, kind: FK_PCRel_1
;
; CHECK64-LABEL: BlockPlacementTest:
; CHECK64: # %bb.0: # %entry
; CHECK64-NEXT: testb $42, %sil # encoding: [0x40,0xf6,0xc6,0x2a]
; CHECK64-NEXT: je .LBB2_3 # encoding: [0x74,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB2_3-1, kind: FK_PCRel_1
; CHECK64-NEXT: # %bb.1: # %land.rhs
; CHECK64-NEXT: movb $1, %al # encoding: [0xb0,0x01]
; CHECK64-NEXT: testb $44, %sil # encoding: [0x40,0xf6,0xc6,0x2c]
; CHECK64-NEXT: je baz # TAILCALL
; CHECK64-NEXT: # encoding: [0x74,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: baz-1, kind: FK_PCRel_1
; CHECK64-NEXT: .LBB2_2: # %land.end
; CHECK64-NEXT: # kill: def $al killed $al killed $eax
; CHECK64-NEXT: retq # encoding: [0xc3]
; CHECK64-NEXT: .LBB2_3:
; CHECK64-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0]
; CHECK64-NEXT: jmp .LBB2_2 # encoding: [0xeb,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB2_2-1, kind: FK_PCRel_1
;
; WIN64-LABEL: BlockPlacementTest:
; WIN64: # %bb.0: # %entry
; WIN64-NEXT: testb $42, %dl # encoding: [0xf6,0xc2,0x2a]
; WIN64-NEXT: je .LBB2_3 # encoding: [0x74,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB2_3-1, kind: FK_PCRel_1
; WIN64-NEXT: # %bb.1: # %land.rhs
; WIN64-NEXT: movb $1, %al # encoding: [0xb0,0x01]
; WIN64-NEXT: testb $44, %dl # encoding: [0xf6,0xc2,0x2c]
; WIN64-NEXT: je baz # TAILCALL
; WIN64-NEXT: # encoding: [0x74,A]
; WIN64-NEXT: # fixup A - offset: 1, value: baz-1, kind: FK_PCRel_1
; WIN64-NEXT: .LBB2_2: # %land.end
; WIN64-NEXT: # kill: def $al killed $al killed $eax
; WIN64-NEXT: retq # encoding: [0xc3]
; WIN64-NEXT: .LBB2_3:
; WIN64-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0]
; WIN64-NEXT: jmp .LBB2_2 # encoding: [0xeb,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB2_2-1, kind: FK_PCRel_1
entry:
%and = and i32 %x, 42
%tobool = icmp eq i32 %and, 0
br i1 %tobool, label %land.end, label %land.rhs
land.rhs:
%and6 = and i32 %x, 44
%tobool7 = icmp eq i32 %and6, 0
br i1 %tobool7, label %lor.rhs, label %land.end
lor.rhs:
%call = tail call x86_thiscallcc zeroext i1 @baz(ptr %this, i32 %x) #2
br label %land.end
land.end:
%0 = phi i1 [ false, %entry ], [ true, %land.rhs ], [ %call, %lor.rhs ]
ret i1 %0
; Make sure machine block placement isn't confused by the conditional tail call,
; but sees that it can fall through to the next block.
}
%"class.std::basic_string" = type { %"struct.std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider" }
%"struct.std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider" = type { ptr }
declare dso_local zeroext i1 @_Z20isValidIntegerSuffixN9__gnu_cxx17__normal_iteratorIPKcSsEES3_(ptr, ptr)
define zeroext i1 @pr31257(ptr nocapture readonly dereferenceable(8) %s) minsize {
; CHECK32-LABEL: pr31257:
; CHECK32: # %bb.0: # %entry
; CHECK32-NEXT: pushl %ebp # encoding: [0x55]
; CHECK32-NEXT: .cfi_def_cfa_offset 8
; CHECK32-NEXT: pushl %ebx # encoding: [0x53]
; CHECK32-NEXT: .cfi_def_cfa_offset 12
; CHECK32-NEXT: pushl %edi # encoding: [0x57]
; CHECK32-NEXT: .cfi_def_cfa_offset 16
; CHECK32-NEXT: pushl %esi # encoding: [0x56]
; CHECK32-NEXT: .cfi_def_cfa_offset 20
; CHECK32-NEXT: subl $12, %esp # encoding: [0x83,0xec,0x0c]
; CHECK32-NEXT: .cfi_def_cfa_offset 32
; CHECK32-NEXT: .cfi_offset %esi, -20
; CHECK32-NEXT: .cfi_offset %edi, -16
; CHECK32-NEXT: .cfi_offset %ebx, -12
; CHECK32-NEXT: .cfi_offset %ebp, -8
; CHECK32-NEXT: movl {{[0-9]+}}(%esp), %eax # encoding: [0x8b,0x44,0x24,0x20]
; CHECK32-NEXT: movl (%eax), %eax # encoding: [0x8b,0x00]
; CHECK32-NEXT: movl -24(%eax), %edx # encoding: [0x8b,0x50,0xe8]
; CHECK32-NEXT: leal (%eax,%edx), %ecx # encoding: [0x8d,0x0c,0x10]
; CHECK32-NEXT: xorl %ebx, %ebx # encoding: [0x31,0xdb]
; CHECK32-NEXT: pushl $2 # encoding: [0x6a,0x02]
; CHECK32-NEXT: .cfi_adjust_cfa_offset 4
; CHECK32-NEXT: popl %esi # encoding: [0x5e]
; CHECK32-NEXT: .cfi_adjust_cfa_offset -4
; CHECK32-NEXT: xorl %edi, %edi # encoding: [0x31,0xff]
; CHECK32-NEXT: incl %edi # encoding: [0x47]
; CHECK32-NEXT: .LBB3_1: # %for.cond
; CHECK32-NEXT: # =>This Inner Loop Header: Depth=1
; CHECK32-NEXT: testl %edx, %edx # encoding: [0x85,0xd2]
; CHECK32-NEXT: je .LBB3_14 # encoding: [0x74,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_14-1, kind: FK_PCRel_1
; CHECK32-NEXT: # %bb.2: # %for.body
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: cmpl $2, %ebx # encoding: [0x83,0xfb,0x02]
; CHECK32-NEXT: je .LBB3_12 # encoding: [0x74,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_12-1, kind: FK_PCRel_1
; CHECK32-NEXT: # %bb.3: # %for.body
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: cmpl $1, %ebx # encoding: [0x83,0xfb,0x01]
; CHECK32-NEXT: je .LBB3_10 # encoding: [0x74,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_10-1, kind: FK_PCRel_1
; CHECK32-NEXT: # %bb.4: # %for.body
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: testl %ebx, %ebx # encoding: [0x85,0xdb]
; CHECK32-NEXT: jne .LBB3_11 # encoding: [0x75,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_11-1, kind: FK_PCRel_1
; CHECK32-NEXT: # %bb.5: # %sw.bb
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: movzbl (%eax), %ebp # encoding: [0x0f,0xb6,0x28]
; CHECK32-NEXT: cmpl $43, %ebp # encoding: [0x83,0xfd,0x2b]
; CHECK32-NEXT: movl %edi, %ebx # encoding: [0x89,0xfb]
; CHECK32-NEXT: je .LBB3_11 # encoding: [0x74,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_11-1, kind: FK_PCRel_1
; CHECK32-NEXT: # %bb.6: # %sw.bb
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: cmpl $45, %ebp # encoding: [0x83,0xfd,0x2d]
; CHECK32-NEXT: movl %edi, %ebx # encoding: [0x89,0xfb]
; CHECK32-NEXT: je .LBB3_11 # encoding: [0x74,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_11-1, kind: FK_PCRel_1
; CHECK32-NEXT: # %bb.7: # %if.else
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: addl $-48, %ebp # encoding: [0x83,0xc5,0xd0]
; CHECK32-NEXT: cmpl $10, %ebp # encoding: [0x83,0xfd,0x0a]
; CHECK32-NEXT: jmp .LBB3_8 # encoding: [0xeb,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_8-1, kind: FK_PCRel_1
; CHECK32-NEXT: .LBB3_10: # %sw.bb14
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: movzbl (%eax), %ebx # encoding: [0x0f,0xb6,0x18]
; CHECK32-NEXT: addl $-48, %ebx # encoding: [0x83,0xc3,0xd0]
; CHECK32-NEXT: cmpl $10, %ebx # encoding: [0x83,0xfb,0x0a]
; CHECK32-NEXT: .LBB3_8: # %if.else
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: movl %esi, %ebx # encoding: [0x89,0xf3]
; CHECK32-NEXT: jae .LBB3_9 # encoding: [0x73,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_9-1, kind: FK_PCRel_1
; CHECK32-NEXT: jmp .LBB3_11 # encoding: [0xeb,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_11-1, kind: FK_PCRel_1
; CHECK32-NEXT: .LBB3_12: # %sw.bb22
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: movzbl (%eax), %ebx # encoding: [0x0f,0xb6,0x18]
; CHECK32-NEXT: addl $-48, %ebx # encoding: [0x83,0xc3,0xd0]
; CHECK32-NEXT: cmpl $10, %ebx # encoding: [0x83,0xfb,0x0a]
; CHECK32-NEXT: movl %esi, %ebx # encoding: [0x89,0xf3]
; CHECK32-NEXT: jae .LBB3_13 # encoding: [0x73,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_13-1, kind: FK_PCRel_1
; CHECK32-NEXT: .LBB3_11: # %for.inc
; CHECK32-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK32-NEXT: incl %eax # encoding: [0x40]
; CHECK32-NEXT: decl %edx # encoding: [0x4a]
; CHECK32-NEXT: jmp .LBB3_1 # encoding: [0xeb,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_1-1, kind: FK_PCRel_1
; CHECK32-NEXT: .LBB3_14:
; CHECK32-NEXT: cmpl $2, %ebx # encoding: [0x83,0xfb,0x02]
; CHECK32-NEXT: sete %al # encoding: [0x0f,0x94,0xc0]
; CHECK32-NEXT: jmp .LBB3_15 # encoding: [0xeb,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_15-1, kind: FK_PCRel_1
; CHECK32-NEXT: .LBB3_9:
; CHECK32-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0]
; CHECK32-NEXT: .LBB3_15: # %cleanup.thread
; CHECK32-NEXT: # kill: def $al killed $al killed $eax
; CHECK32-NEXT: addl $12, %esp # encoding: [0x83,0xc4,0x0c]
; CHECK32-NEXT: .cfi_def_cfa_offset 20
; CHECK32-NEXT: .LBB3_16: # %cleanup.thread
; CHECK32-NEXT: popl %esi # encoding: [0x5e]
; CHECK32-NEXT: .cfi_def_cfa_offset 16
; CHECK32-NEXT: popl %edi # encoding: [0x5f]
; CHECK32-NEXT: .cfi_def_cfa_offset 12
; CHECK32-NEXT: popl %ebx # encoding: [0x5b]
; CHECK32-NEXT: .cfi_def_cfa_offset 8
; CHECK32-NEXT: popl %ebp # encoding: [0x5d]
; CHECK32-NEXT: .cfi_def_cfa_offset 4
; CHECK32-NEXT: retl # encoding: [0xc3]
; CHECK32-NEXT: .LBB3_13: # %if.else28
; CHECK32-NEXT: .cfi_def_cfa_offset 32
; CHECK32-NEXT: subl $8, %esp # encoding: [0x83,0xec,0x08]
; CHECK32-NEXT: .cfi_adjust_cfa_offset 8
; CHECK32-NEXT: pushl %ecx # encoding: [0x51]
; CHECK32-NEXT: .cfi_adjust_cfa_offset 4
; CHECK32-NEXT: pushl %eax # encoding: [0x50]
; CHECK32-NEXT: .cfi_adjust_cfa_offset 4
; CHECK32-NEXT: calll _Z20isValidIntegerSuffixN9__gnu_cxx17__normal_iteratorIPKcSsEES3_ # encoding: [0xe8,A,A,A,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: _Z20isValidIntegerSuffixN9__gnu_cxx17__normal_iteratorIPKcSsEES3_-4, kind: FK_PCRel_4
; CHECK32-NEXT: addl $28, %esp # encoding: [0x83,0xc4,0x1c]
; CHECK32-NEXT: .cfi_adjust_cfa_offset -28
; CHECK32-NEXT: jmp .LBB3_16 # encoding: [0xeb,A]
; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB3_16-1, kind: FK_PCRel_1
;
; CHECK64-LABEL: pr31257:
; CHECK64: # %bb.0: # %entry
; CHECK64-NEXT: movq (%rdi), %rdi # encoding: [0x48,0x8b,0x3f]
; CHECK64-NEXT: movq -24(%rdi), %rax # encoding: [0x48,0x8b,0x47,0xe8]
; CHECK64-NEXT: leaq (%rdi,%rax), %rsi # encoding: [0x48,0x8d,0x34,0x07]
; CHECK64-NEXT: xorl %r8d, %r8d # encoding: [0x45,0x31,0xc0]
; CHECK64-NEXT: pushq $2 # encoding: [0x6a,0x02]
; CHECK64-NEXT: .cfi_adjust_cfa_offset 8
; CHECK64-NEXT: popq %rcx # encoding: [0x59]
; CHECK64-NEXT: .cfi_adjust_cfa_offset -8
; CHECK64-NEXT: pushq $1 # encoding: [0x6a,0x01]
; CHECK64-NEXT: .cfi_adjust_cfa_offset 8
; CHECK64-NEXT: popq %rdx # encoding: [0x5a]
; CHECK64-NEXT: .cfi_adjust_cfa_offset -8
; CHECK64-NEXT: .LBB3_1: # %for.cond
; CHECK64-NEXT: # =>This Inner Loop Header: Depth=1
; CHECK64-NEXT: testq %rax, %rax # encoding: [0x48,0x85,0xc0]
; CHECK64-NEXT: je .LBB3_12 # encoding: [0x74,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_12-1, kind: FK_PCRel_1
; CHECK64-NEXT: # %bb.2: # %for.body
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: cmpl $2, %r8d # encoding: [0x41,0x83,0xf8,0x02]
; CHECK64-NEXT: je .LBB3_10 # encoding: [0x74,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_10-1, kind: FK_PCRel_1
; CHECK64-NEXT: # %bb.3: # %for.body
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: cmpl $1, %r8d # encoding: [0x41,0x83,0xf8,0x01]
; CHECK64-NEXT: je .LBB3_8 # encoding: [0x74,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_8-1, kind: FK_PCRel_1
; CHECK64-NEXT: # %bb.4: # %for.body
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: testl %r8d, %r8d # encoding: [0x45,0x85,0xc0]
; CHECK64-NEXT: jne .LBB3_11 # encoding: [0x75,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_11-1, kind: FK_PCRel_1
; CHECK64-NEXT: # %bb.5: # %sw.bb
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: movzbl (%rdi), %r9d # encoding: [0x44,0x0f,0xb6,0x0f]
; CHECK64-NEXT: cmpl $43, %r9d # encoding: [0x41,0x83,0xf9,0x2b]
; CHECK64-NEXT: movl %edx, %r8d # encoding: [0x41,0x89,0xd0]
; CHECK64-NEXT: je .LBB3_11 # encoding: [0x74,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_11-1, kind: FK_PCRel_1
; CHECK64-NEXT: # %bb.6: # %sw.bb
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: cmpl $45, %r9d # encoding: [0x41,0x83,0xf9,0x2d]
; CHECK64-NEXT: movl %edx, %r8d # encoding: [0x41,0x89,0xd0]
; CHECK64-NEXT: je .LBB3_11 # encoding: [0x74,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_11-1, kind: FK_PCRel_1
; CHECK64-NEXT: # %bb.7: # %if.else
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: addl $-48, %r9d # encoding: [0x41,0x83,0xc1,0xd0]
; CHECK64-NEXT: cmpl $10, %r9d # encoding: [0x41,0x83,0xf9,0x0a]
; CHECK64-NEXT: jmp .LBB3_9 # encoding: [0xeb,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_9-1, kind: FK_PCRel_1
; CHECK64-NEXT: .LBB3_8: # %sw.bb14
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: movzbl (%rdi), %r8d # encoding: [0x44,0x0f,0xb6,0x07]
; CHECK64-NEXT: addl $-48, %r8d # encoding: [0x41,0x83,0xc0,0xd0]
; CHECK64-NEXT: cmpl $10, %r8d # encoding: [0x41,0x83,0xf8,0x0a]
; CHECK64-NEXT: .LBB3_9: # %if.else
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: movl %ecx, %r8d # encoding: [0x41,0x89,0xc8]
; CHECK64-NEXT: jb .LBB3_11 # encoding: [0x72,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_11-1, kind: FK_PCRel_1
; CHECK64-NEXT: jmp .LBB3_13 # encoding: [0xeb,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_13-1, kind: FK_PCRel_1
; CHECK64-NEXT: .LBB3_10: # %sw.bb22
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: movzbl (%rdi), %r8d # encoding: [0x44,0x0f,0xb6,0x07]
; CHECK64-NEXT: addl $-48, %r8d # encoding: [0x41,0x83,0xc0,0xd0]
; CHECK64-NEXT: cmpl $10, %r8d # encoding: [0x41,0x83,0xf8,0x0a]
; CHECK64-NEXT: movl %ecx, %r8d # encoding: [0x41,0x89,0xc8]
; CHECK64-NEXT: jae _Z20isValidIntegerSuffixN9__gnu_cxx17__normal_iteratorIPKcSsEES3_ # TAILCALL
; CHECK64-NEXT: # encoding: [0x73,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: _Z20isValidIntegerSuffixN9__gnu_cxx17__normal_iteratorIPKcSsEES3_-1, kind: FK_PCRel_1
; CHECK64-NEXT: .LBB3_11: # %for.inc
; CHECK64-NEXT: # in Loop: Header=BB3_1 Depth=1
; CHECK64-NEXT: incq %rdi # encoding: [0x48,0xff,0xc7]
; CHECK64-NEXT: decq %rax # encoding: [0x48,0xff,0xc8]
; CHECK64-NEXT: jmp .LBB3_1 # encoding: [0xeb,A]
; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB3_1-1, kind: FK_PCRel_1
; CHECK64-NEXT: .LBB3_12:
; CHECK64-NEXT: cmpl $2, %r8d # encoding: [0x41,0x83,0xf8,0x02]
; CHECK64-NEXT: sete %al # encoding: [0x0f,0x94,0xc0]
; CHECK64-NEXT: # kill: def $al killed $al killed $eax
; CHECK64-NEXT: retq # encoding: [0xc3]
; CHECK64-NEXT: .LBB3_13:
; CHECK64-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0]
; CHECK64-NEXT: # kill: def $al killed $al killed $eax
; CHECK64-NEXT: retq # encoding: [0xc3]
;
; WIN64-LABEL: pr31257:
; WIN64: # %bb.0: # %entry
; WIN64-NEXT: movq (%rcx), %rcx # encoding: [0x48,0x8b,0x09]
; WIN64-NEXT: movq -24(%rcx), %rax # encoding: [0x48,0x8b,0x41,0xe8]
; WIN64-NEXT: leaq (%rcx,%rax), %rdx # encoding: [0x48,0x8d,0x14,0x01]
; WIN64-NEXT: xorl %r8d, %r8d # encoding: [0x45,0x31,0xc0]
; WIN64-NEXT: .LBB3_1: # %for.cond
; WIN64-NEXT: # =>This Inner Loop Header: Depth=1
; WIN64-NEXT: testq %rax, %rax # encoding: [0x48,0x85,0xc0]
; WIN64-NEXT: je .LBB3_11 # encoding: [0x74,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_11-1, kind: FK_PCRel_1
; WIN64-NEXT: # %bb.2: # %for.body
; WIN64-NEXT: # in Loop: Header=BB3_1 Depth=1
; WIN64-NEXT: cmpl $2, %r8d # encoding: [0x41,0x83,0xf8,0x02]
; WIN64-NEXT: je .LBB3_9 # encoding: [0x74,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_9-1, kind: FK_PCRel_1
; WIN64-NEXT: # %bb.3: # %for.body
; WIN64-NEXT: # in Loop: Header=BB3_1 Depth=1
; WIN64-NEXT: cmpl $1, %r8d # encoding: [0x41,0x83,0xf8,0x01]
; WIN64-NEXT: je .LBB3_7 # encoding: [0x74,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_7-1, kind: FK_PCRel_1
; WIN64-NEXT: # %bb.4: # %for.body
; WIN64-NEXT: # in Loop: Header=BB3_1 Depth=1
; WIN64-NEXT: testl %r8d, %r8d # encoding: [0x45,0x85,0xc0]
; WIN64-NEXT: jne .LBB3_10 # encoding: [0x75,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_10-1, kind: FK_PCRel_1
; WIN64-NEXT: # %bb.5: # %sw.bb
; WIN64-NEXT: # in Loop: Header=BB3_1 Depth=1
; WIN64-NEXT: movzbl (%rcx), %r9d # encoding: [0x44,0x0f,0xb6,0x09]
; WIN64-NEXT: cmpl $43, %r9d # encoding: [0x41,0x83,0xf9,0x2b]
; WIN64-NEXT: movl $1, %r8d # encoding: [0x41,0xb8,0x01,0x00,0x00,0x00]
; WIN64-NEXT: je .LBB3_10 # encoding: [0x74,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_10-1, kind: FK_PCRel_1
; WIN64-NEXT: # %bb.6: # %sw.bb
; WIN64-NEXT: # in Loop: Header=BB3_1 Depth=1
; WIN64-NEXT: cmpl $45, %r9d # encoding: [0x41,0x83,0xf9,0x2d]
; WIN64-NEXT: jne .LBB3_8 # encoding: [0x75,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_8-1, kind: FK_PCRel_1
; WIN64-NEXT: jmp .LBB3_10 # encoding: [0xeb,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_10-1, kind: FK_PCRel_1
; WIN64-NEXT: .LBB3_7: # %sw.bb14
; WIN64-NEXT: # in Loop: Header=BB3_1 Depth=1
; WIN64-NEXT: movzbl (%rcx), %r9d # encoding: [0x44,0x0f,0xb6,0x09]
; WIN64-NEXT: .LBB3_8: # %if.else
; WIN64-NEXT: # in Loop: Header=BB3_1 Depth=1
; WIN64-NEXT: addl $-48, %r9d # encoding: [0x41,0x83,0xc1,0xd0]
; WIN64-NEXT: movl $2, %r8d # encoding: [0x41,0xb8,0x02,0x00,0x00,0x00]
; WIN64-NEXT: cmpl $10, %r9d # encoding: [0x41,0x83,0xf9,0x0a]
; WIN64-NEXT: jb .LBB3_10 # encoding: [0x72,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_10-1, kind: FK_PCRel_1
; WIN64-NEXT: jmp .LBB3_12 # encoding: [0xeb,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_12-1, kind: FK_PCRel_1
; WIN64-NEXT: .LBB3_9: # %sw.bb22
; WIN64-NEXT: # in Loop: Header=BB3_1 Depth=1
; WIN64-NEXT: movzbl (%rcx), %r9d # encoding: [0x44,0x0f,0xb6,0x09]
; WIN64-NEXT: addl $-48, %r9d # encoding: [0x41,0x83,0xc1,0xd0]
; WIN64-NEXT: movl $2, %r8d # encoding: [0x41,0xb8,0x02,0x00,0x00,0x00]
; WIN64-NEXT: cmpl $10, %r9d # encoding: [0x41,0x83,0xf9,0x0a]
; WIN64-NEXT: jae _Z20isValidIntegerSuffixN9__gnu_cxx17__normal_iteratorIPKcSsEES3_ # TAILCALL
; WIN64-NEXT: # encoding: [0x73,A]
; WIN64-NEXT: # fixup A - offset: 1, value: _Z20isValidIntegerSuffixN9__gnu_cxx17__normal_iteratorIPKcSsEES3_-1, kind: FK_PCRel_1
; WIN64-NEXT: .LBB3_10: # %for.inc
; WIN64-NEXT: # in Loop: Header=BB3_1 Depth=1
; WIN64-NEXT: incq %rcx # encoding: [0x48,0xff,0xc1]
; WIN64-NEXT: decq %rax # encoding: [0x48,0xff,0xc8]
; WIN64-NEXT: jmp .LBB3_1 # encoding: [0xeb,A]
; WIN64-NEXT: # fixup A - offset: 1, value: .LBB3_1-1, kind: FK_PCRel_1
; WIN64-NEXT: .LBB3_11:
; WIN64-NEXT: cmpl $2, %r8d # encoding: [0x41,0x83,0xf8,0x02]
; WIN64-NEXT: sete %al # encoding: [0x0f,0x94,0xc0]
; WIN64-NEXT: # kill: def $al killed $al killed $eax
; WIN64-NEXT: retq # encoding: [0xc3]
; WIN64-NEXT: .LBB3_12:
; WIN64-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0]
; WIN64-NEXT: # kill: def $al killed $al killed $eax
; WIN64-NEXT: retq # encoding: [0xc3]
entry:
%0 = load ptr, ptr %s, align 8
%arrayidx.i.i.i54 = getelementptr inbounds i8, ptr %0, i64 -24
%1 = load i64, ptr %arrayidx.i.i.i54, align 8
%add.ptr.i56 = getelementptr inbounds i8, ptr %0, i64 %1
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%it.sroa.0.0 = phi ptr [ %0, %entry ], [ %incdec.ptr.i, %for.inc ]
%state.0 = phi i32 [ 0, %entry ], [ %state.1, %for.inc ]
%cmp.i = icmp eq ptr %it.sroa.0.0, %add.ptr.i56
br i1 %cmp.i, label %5, label %for.body
for.body: ; preds = %for.cond
switch i32 %state.0, label %for.inc [
i32 0, label %sw.bb
i32 1, label %sw.bb14
i32 2, label %sw.bb22
]
sw.bb: ; preds = %for.body
%2 = load i8, ptr %it.sroa.0.0, align 1
switch i8 %2, label %if.else [
i8 43, label %for.inc
i8 45, label %for.inc
]
if.else: ; preds = %sw.bb
%conv9 = zext i8 %2 to i32
%isdigittmp45 = add nsw i32 %conv9, -48
%isdigit46 = icmp ult i32 %isdigittmp45, 10
br i1 %isdigit46, label %for.inc, label %cleanup.thread.loopexit
sw.bb14: ; preds = %for.body
%3 = load i8, ptr %it.sroa.0.0, align 1
%conv16 = zext i8 %3 to i32
%isdigittmp43 = add nsw i32 %conv16, -48
%isdigit44 = icmp ult i32 %isdigittmp43, 10
br i1 %isdigit44, label %for.inc, label %cleanup.thread.loopexit
sw.bb22: ; preds = %for.body
%4 = load i8, ptr %it.sroa.0.0, align 1
%conv24 = zext i8 %4 to i32
%isdigittmp = add nsw i32 %conv24, -48
%isdigit = icmp ult i32 %isdigittmp, 10
br i1 %isdigit, label %for.inc, label %if.else28
; Make sure Machine Copy Propagation doesn't delete the mov to %ecx becaue it
; thinks the conditional tail call clobbers it.
if.else28: ; preds = %sw.bb22
%call34 = tail call zeroext i1 @_Z20isValidIntegerSuffixN9__gnu_cxx17__normal_iteratorIPKcSsEES3_(ptr nonnull %it.sroa.0.0, ptr %add.ptr.i56)
br label %cleanup.thread
for.inc: ; preds = %sw.bb, %sw.bb, %sw.bb22, %sw.bb14, %if.else, %for.body
%state.1 = phi i32 [ %state.0, %for.body ], [ 1, %sw.bb ], [ 2, %if.else ], [ 2, %sw.bb14 ], [ 2, %sw.bb22 ], [ 1, %sw.bb ]
%incdec.ptr.i = getelementptr inbounds i8, ptr %it.sroa.0.0, i64 1
br label %for.cond
; <label>:5: ; preds = %for.cond
%cmp37 = icmp eq i32 %state.0, 2
br label %cleanup.thread
cleanup.thread.loopexit: ; preds = %if.else, %sw.bb14
br label %cleanup.thread
cleanup.thread: ; preds = %cleanup.thread.loopexit, %if.else28, %5
%6 = phi i1 [ %cmp37, %5 ], [ %call34, %if.else28 ], [ false, %cleanup.thread.loopexit ]
ret i1 %6
}
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