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local-variables-registers.s
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local-variables-registers.s
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# clang-format off
# REQUIRES: lld
# RUN: llvm-mc -triple=x86_64-windows-msvc --filetype=obj %s > %t.obj
# RUN: lld-link /debug:full /nodefaultlib /entry:main %t.obj /out:%t.exe /base:0x140000000
# RUN: env LLDB_USE_NATIVE_PDB_READER=1 %lldb -f %t.exe -s \
# RUN: %p/Inputs/local-variables-registers.lldbinit 2>&1 | FileCheck %s
# This file is compiled from following source file:
# clang-cl /Z7 /O1 /Falocal-variables-registers.s a.cpp
# struct S {
# int x;
# char y;
# };
#
# __attribute__((noinline)) S CreateS(int p1, char p2) {
# S s;
# s.x = p1 + 1;
# s.y = p2 + 2;
# ++s.x;
# ++s.y;
# return s;
# }
#
# int main(int argc, char** argv) {
# int local = argc * 2;
# S s = CreateS(local, 'a');
# return s.x + s.y;
# }
# FIXME: The following variable location have wrong register numbers due to
# https://github.com/llvm/llvm-project/issues/53575. Fix them after resolving
# the issue.
# CHECK: (lldb) image lookup -a 0x140001000 -v
# CHECK: LineEntry: [0x0000000140001000-0x0000000140001003): C:\src\test\a.cpp:10
# CHECK-NEXT: Variable: id = {{.*}}, name = "p1", type = "int", valid ranges = [0x0000000140001000-0x0000000140001003), location = DW_OP_reg26 XMM9
# CHECK-NEXT: Variable: id = {{.*}}, name = "p2", type = "char", valid ranges = [0x0000000140001000-0x0000000140001006), location = DW_OP_regx 0x3f
# CHECK-EMPTY:
# CHECK: (lldb) image lookup -a 0x140001003 -v
# CHECK: LineEntry: [0x0000000140001003-0x0000000140001006): C:\src\test\a.cpp:11
# CHECK-NEXT: Variable: id = {{.*}}, name = "p2", type = "char", valid ranges = [0x0000000140001000-0x0000000140001006), location = DW_OP_regx 0x3f
# CHECK-EMPTY:
# CHECK: (lldb) image lookup -a 0x140001006 -v
# CHECK: LineEntry: [0x0000000140001006-0x0000000140001011): C:\src\test\a.cpp:12
# CHECK-NEXT: Variable: id = {{.*}}, name = "s", type = "S", valid ranges = [0x0000000140001006-0x0000000140001011), location = DW_OP_reg26 XMM9, DW_OP_piece 0x4, DW_OP_regx 0x3f, DW_OP_piece 0x1
# CHECK-EMPTY:
# CHECK: (lldb) image lookup -a 0x140001011 -v
# CHECK: LineEntry: [0x0000000140001011-0x0000000140001015): C:\src\test\a.cpp:15
# CHECK-NEXT: Variable: id = {{.*}}, name = "argc", type = "int", valid ranges = [0x0000000140001011-0x0000000140001017), location = DW_OP_reg26 XMM9
# CHECK-NEXT: Variable: id = {{.*}}, name = "argv", type = "char **", valid ranges = [0x0000000140001011-0x0000000140001019), location = DW_OP_reg3 RBX
# CHECK-EMPTY:
# CHECK: (lldb) image lookup -a 0x140001017 -v
# CHECK: LineEntry: [0x0000000140001017-0x000000014000101e): C:\src\test\a.cpp:17
# CHECK-NEXT: Variable: id = {{.*}}, name = "argv", type = "char **", valid ranges = [0x0000000140001011-0x0000000140001019), location = DW_OP_reg3 RBX
# CHECK-NEXT: Variable: id = {{.*}}, name = "local", type = "int", valid ranges = [0x0000000140001017-0x000000014000101e), location = DW_OP_reg26 XMM9
# CHECK-EMPTY:
# CHECK: (lldb) image lookup -a 0x140001019 -v
# CHECK: LineEntry: [0x0000000140001017-0x000000014000101e): C:\src\test\a.cpp:17
# CHECK-NEXT: Variable: id = {{.*}}, name = "local", type = "int", valid ranges = [0x0000000140001017-0x000000014000101e), location = DW_OP_reg26 XMM9
# CHECK-EMPTY:
# CHECK: (lldb) image lookup -a 0x14000101e -v
# CHECK: LineEntry: [0x000000014000101e-0x0000000140001031): C:\src\test\a.cpp:18
# CHECK-NEXT: Variable: id = {{.*}}, name = "s", type = "S", valid ranges = [0x000000014000101e-0x000000014000102c), location = DW_OP_reg24 XMM7, DW_OP_piece 0x4, DW_OP_piece 0x1
# CHECK-EMPTY:
# CHECK: (lldb) image lookup -a 0x14000102c -v
# CHECK: LineEntry: [0x000000014000101e-0x0000000140001031): C:\src\test\a.cpp:18
# CHECK-EMPTY:
.text
.def @feat.00;
.scl 3;
.type 0;
.endef
.globl @feat.00
.set @feat.00, 0
.intel_syntax noprefix
.file "a.cpp"
.def "?CreateS@@YA?AUS@@HD@Z";
.scl 2;
.type 32;
.endef
.section .text,"xr",one_only,"?CreateS@@YA?AUS@@HD@Z"
.globl "?CreateS@@YA?AUS@@HD@Z" # -- Begin function ?CreateS@@YA?AUS@@HD@Z
"?CreateS@@YA?AUS@@HD@Z": # @"?CreateS@@YA?AUS@@HD@Z"
.Lfunc_begin0:
.cv_func_id 0
# %bb.0:
#DEBUG_VALUE: CreateS:p2 <- $dl
#DEBUG_VALUE: CreateS:p1 <- $ecx
#DEBUG_VALUE: CreateS:s <- [DW_OP_plus_uconst 1, DW_OP_stack_value, DW_OP_LLVM_fragment 0 32] $ecx
#DEBUG_VALUE: CreateS:s <- [DW_OP_plus_uconst 2, DW_OP_stack_value, DW_OP_LLVM_fragment 32 8] $dl
.cv_file 1 "C:\\src\\test\\a.cpp" "446925B46C8C870B01708834F4813A31" 1
.cv_loc 0 1 10 0 # a.cpp:10:0
# kill: def $ecx killed $ecx def $rcx
#DEBUG_VALUE: CreateS:s <- [DW_OP_plus_uconst 1, DW_OP_stack_value, DW_OP_LLVM_fragment 0 32] $ecx
add ecx, 2
.Ltmp0:
#DEBUG_VALUE: CreateS:p1 <- [DW_OP_LLVM_entry_value 1] $ecx
#DEBUG_VALUE: CreateS:s <- [DW_OP_LLVM_fragment 0 32] $ecx
.cv_loc 0 1 11 0 # a.cpp:11:0
add dl, 3
.Ltmp1:
#DEBUG_VALUE: CreateS:p2 <- [DW_OP_LLVM_entry_value 1] $dl
#DEBUG_VALUE: CreateS:s <- [DW_OP_LLVM_fragment 32 8] $dl
.cv_loc 0 1 12 0 # a.cpp:12:0
movzx eax, dl
shl rax, 32
or rax, rcx
ret
.Ltmp2:
.Lfunc_end0:
# -- End function
.def main;
.scl 2;
.type 32;
.endef
.section .text,"xr",one_only,main
.globl main # -- Begin function main
main: # @main
.Lfunc_begin1:
.cv_func_id 1
.cv_loc 1 1 15 0 # a.cpp:15:0
.seh_proc main
# %bb.0:
#DEBUG_VALUE: main:argv <- $rdx
#DEBUG_VALUE: main:argc <- $ecx
sub rsp, 40
.seh_stackalloc 40
.seh_endprologue
.Ltmp3:
.cv_loc 1 1 16 0 # a.cpp:16:0
add ecx, ecx
.Ltmp4:
#DEBUG_VALUE: main:argc <- [DW_OP_LLVM_entry_value 1] $ecx
#DEBUG_VALUE: main:local <- $ecx
.cv_loc 1 1 17 0 # a.cpp:17:0
mov dl, 97
.Ltmp5:
#DEBUG_VALUE: main:argv <- [DW_OP_LLVM_entry_value 1] $rdx
call "?CreateS@@YA?AUS@@HD@Z"
.Ltmp6:
#DEBUG_VALUE: main:s <- [DW_OP_LLVM_fragment 0 32] $eax
#DEBUG_VALUE: main:s <- [DW_OP_constu 40, DW_OP_shr, DW_OP_LLVM_convert 64 7, DW_OP_LLVM_convert 24 7, DW_OP_stack_value, DW_OP_LLVM_fragment 40 24] $rax
#DEBUG_VALUE: main:s <- [DW_OP_constu 32, DW_OP_shr, DW_OP_LLVM_convert 64 7, DW_OP_LLVM_convert 8 7, DW_OP_stack_value, DW_OP_LLVM_fragment 32 8] $rax
.cv_loc 1 1 18 0 # a.cpp:18:0
mov rcx, rax
shr rcx, 8
sar ecx, 24
add ecx, eax
mov eax, ecx
.Ltmp7:
add rsp, 40
ret
.Ltmp8:
.Lfunc_end1:
.seh_endproc
# -- End function
.section .drectve,"yn"
.ascii " /DEFAULTLIB:libcmt.lib"
.ascii " /DEFAULTLIB:oldnames.lib"
.section .debug$S,"dr"
.p2align 2
.long 4 # Debug section magic
.long 241
.long .Ltmp10-.Ltmp9 # Subsection size
.Ltmp9:
.short .Ltmp12-.Ltmp11 # Record length
.Ltmp11:
.short 4412 # Record kind: S_COMPILE3
.long 1 # Flags and language
.short 208 # CPUType
.short 13 # Frontend version
.short 0
.short 0
.short 0
.short 13000 # Backend version
.short 0
.short 0
.short 0
.asciz "clang version 13.0.0" # Null-terminated compiler version string
.p2align 2
.Ltmp12:
.Ltmp10:
.p2align 2
.section .debug$S,"dr",associative,"?CreateS@@YA?AUS@@HD@Z"
.p2align 2
.long 4 # Debug section magic
.long 241 # Symbol subsection for CreateS
.long .Ltmp14-.Ltmp13 # Subsection size
.Ltmp13:
.short .Ltmp16-.Ltmp15 # Record length
.Ltmp15:
.short 4423 # Record kind: S_GPROC32_ID
.long 0 # PtrParent
.long 0 # PtrEnd
.long 0 # PtrNext
.long .Lfunc_end0-"?CreateS@@YA?AUS@@HD@Z" # Code size
.long 0 # Offset after prologue
.long 0 # Offset before epilogue
.long 4103 # Function type index
.secrel32 "?CreateS@@YA?AUS@@HD@Z" # Function section relative address
.secidx "?CreateS@@YA?AUS@@HD@Z" # Function section index
.byte 0 # Flags
.asciz "CreateS" # Function name
.p2align 2
.Ltmp16:
.short .Ltmp18-.Ltmp17 # Record length
.Ltmp17:
.short 4114 # Record kind: S_FRAMEPROC
.long 0 # FrameSize
.long 0 # Padding
.long 0 # Offset of padding
.long 0 # Bytes of callee saved registers
.long 0 # Exception handler offset
.short 0 # Exception handler section
.long 0 # Flags (defines frame register)
.p2align 2
.Ltmp18:
.short .Ltmp20-.Ltmp19 # Record length
.Ltmp19:
.short 4414 # Record kind: S_LOCAL
.long 116 # TypeIndex
.short 1 # Flags
.asciz "p1"
.p2align 2
.Ltmp20:
.cv_def_range .Lfunc_begin0 .Ltmp0, reg, 18
.short .Ltmp22-.Ltmp21 # Record length
.Ltmp21:
.short 4414 # Record kind: S_LOCAL
.long 112 # TypeIndex
.short 1 # Flags
.asciz "p2"
.p2align 2
.Ltmp22:
.cv_def_range .Lfunc_begin0 .Ltmp1, reg, 3
.short .Ltmp24-.Ltmp23 # Record length
.Ltmp23:
.short 4414 # Record kind: S_LOCAL
.long 4100 # TypeIndex
.short 0 # Flags
.asciz "s"
.p2align 2
.Ltmp24:
.cv_def_range .Ltmp0 .Lfunc_end0, subfield_reg, 18, 0
.cv_def_range .Ltmp1 .Lfunc_end0, subfield_reg, 3, 4
.short 2 # Record length
.short 4431 # Record kind: S_PROC_ID_END
.Ltmp14:
.p2align 2
.cv_linetable 0, "?CreateS@@YA?AUS@@HD@Z", .Lfunc_end0
.section .debug$S,"dr",associative,main
.p2align 2
.long 4 # Debug section magic
.long 241 # Symbol subsection for main
.long .Ltmp26-.Ltmp25 # Subsection size
.Ltmp25:
.short .Ltmp28-.Ltmp27 # Record length
.Ltmp27:
.short 4423 # Record kind: S_GPROC32_ID
.long 0 # PtrParent
.long 0 # PtrEnd
.long 0 # PtrNext
.long .Lfunc_end1-main # Code size
.long 0 # Offset after prologue
.long 0 # Offset before epilogue
.long 4107 # Function type index
.secrel32 main # Function section relative address
.secidx main # Function section index
.byte 0 # Flags
.asciz "main" # Function name
.p2align 2
.Ltmp28:
.short .Ltmp30-.Ltmp29 # Record length
.Ltmp29:
.short 4114 # Record kind: S_FRAMEPROC
.long 40 # FrameSize
.long 0 # Padding
.long 0 # Offset of padding
.long 0 # Bytes of callee saved registers
.long 0 # Exception handler offset
.short 0 # Exception handler section
.long 81920 # Flags (defines frame register)
.p2align 2
.Ltmp30:
.short .Ltmp32-.Ltmp31 # Record length
.Ltmp31:
.short 4414 # Record kind: S_LOCAL
.long 116 # TypeIndex
.short 1 # Flags
.asciz "argc"
.p2align 2
.Ltmp32:
.cv_def_range .Lfunc_begin1 .Ltmp4, reg, 18
.short .Ltmp34-.Ltmp33 # Record length
.Ltmp33:
.short 4414 # Record kind: S_LOCAL
.long 4104 # TypeIndex
.short 1 # Flags
.asciz "argv"
.p2align 2
.Ltmp34:
.cv_def_range .Lfunc_begin1 .Ltmp5, reg, 331
.short .Ltmp36-.Ltmp35 # Record length
.Ltmp35:
.short 4414 # Record kind: S_LOCAL
.long 116 # TypeIndex
.short 0 # Flags
.asciz "local"
.p2align 2
.Ltmp36:
.cv_def_range .Ltmp4 .Ltmp6, reg, 18
.short .Ltmp38-.Ltmp37 # Record length
.Ltmp37:
.short 4414 # Record kind: S_LOCAL
.long 4100 # TypeIndex
.short 0 # Flags
.asciz "s"
.p2align 2
.Ltmp38:
.cv_def_range .Ltmp6 .Ltmp7, subfield_reg, 17, 0
.short 2 # Record length
.short 4431 # Record kind: S_PROC_ID_END
.Ltmp26:
.p2align 2
.cv_linetable 1, main, .Lfunc_end1
.section .debug$S,"dr"
.long 241
.long .Ltmp40-.Ltmp39 # Subsection size
.Ltmp39:
.short .Ltmp42-.Ltmp41 # Record length
.Ltmp41:
.short 4360 # Record kind: S_UDT
.long 4100 # Type
.asciz "S"
.p2align 2
.Ltmp42:
.Ltmp40:
.p2align 2
.cv_filechecksums # File index to string table offset subsection
.cv_stringtable # String table
.long 241
.long .Ltmp44-.Ltmp43 # Subsection size
.Ltmp43:
.short .Ltmp46-.Ltmp45 # Record length
.Ltmp45:
.short 4428 # Record kind: S_BUILDINFO
.long 4110 # LF_BUILDINFO index
.p2align 2
.Ltmp46:
.Ltmp44:
.p2align 2
.section .debug$T,"dr"
.p2align 2
.long 4 # Debug section magic
# Struct (0x1000)
.short 0x1e # Record length
.short 0x1505 # Record kind: LF_STRUCTURE
.short 0x0 # MemberCount
.short 0x280 # Properties ( ForwardReference (0x80) | HasUniqueName (0x200) )
.long 0x0 # FieldList
.long 0x0 # DerivedFrom
.long 0x0 # VShape
.short 0x0 # SizeOf
.asciz "S" # Name
.asciz ".?AUS@@" # LinkageName
# ArgList (0x1001)
.short 0xe # Record length
.short 0x1201 # Record kind: LF_ARGLIST
.long 0x2 # NumArgs
.long 0x74 # Argument: int
.long 0x70 # Argument: char
# Procedure (0x1002)
.short 0xe # Record length
.short 0x1008 # Record kind: LF_PROCEDURE
.long 0x1000 # ReturnType: S
.byte 0x0 # CallingConvention: NearC
.byte 0x0 # FunctionOptions
.short 0x2 # NumParameters
.long 0x1001 # ArgListType: (int, char)
# FieldList (0x1003)
.short 0x1a # Record length
.short 0x1203 # Record kind: LF_FIELDLIST
.short 0x150d # Member kind: DataMember ( LF_MEMBER )
.short 0x3 # Attrs: Public
.long 0x74 # Type: int
.short 0x0 # FieldOffset
.asciz "x" # Name
.short 0x150d # Member kind: DataMember ( LF_MEMBER )
.short 0x3 # Attrs: Public
.long 0x70 # Type: char
.short 0x4 # FieldOffset
.asciz "y" # Name
# Struct (0x1004)
.short 0x1e # Record length
.short 0x1505 # Record kind: LF_STRUCTURE
.short 0x2 # MemberCount
.short 0x200 # Properties ( HasUniqueName (0x200) )
.long 0x1003 # FieldList: <field list>
.long 0x0 # DerivedFrom
.long 0x0 # VShape
.short 0x8 # SizeOf
.asciz "S" # Name
.asciz ".?AUS@@" # LinkageName
# StringId (0x1005)
.short 0x1a # Record length
.short 0x1605 # Record kind: LF_STRING_ID
.long 0x0 # Id
.asciz "C:\\src\\test\\a.cpp" # StringData
.byte 242
.byte 241
# UdtSourceLine (0x1006)
.short 0xe # Record length
.short 0x1606 # Record kind: LF_UDT_SRC_LINE
.long 0x1004 # UDT: S
.long 0x1005 # SourceFile: C:\src\test\a.cpp
.long 0x1 # LineNumber
# FuncId (0x1007)
.short 0x12 # Record length
.short 0x1601 # Record kind: LF_FUNC_ID
.long 0x0 # ParentScope
.long 0x1002 # FunctionType: S (int, char)
.asciz "CreateS" # Name
# Pointer (0x1008)
.short 0xa # Record length
.short 0x1002 # Record kind: LF_POINTER
.long 0x670 # PointeeType: char*
.long 0x1000c # Attrs: [ Type: Near64, Mode: Pointer, SizeOf: 8 ]
# ArgList (0x1009)
.short 0xe # Record length
.short 0x1201 # Record kind: LF_ARGLIST
.long 0x2 # NumArgs
.long 0x74 # Argument: int
.long 0x1008 # Argument: char**
# Procedure (0x100A)
.short 0xe # Record length
.short 0x1008 # Record kind: LF_PROCEDURE
.long 0x74 # ReturnType: int
.byte 0x0 # CallingConvention: NearC
.byte 0x0 # FunctionOptions
.short 0x2 # NumParameters
.long 0x1009 # ArgListType: (int, char**)
# FuncId (0x100B)
.short 0x12 # Record length
.short 0x1601 # Record kind: LF_FUNC_ID
.long 0x0 # ParentScope
.long 0x100a # FunctionType: int (int, char**)
.asciz "main" # Name
.byte 243
.byte 242
.byte 241
# StringId (0x100C)
.short 0x12 # Record length
.short 0x1605 # Record kind: LF_STRING_ID
.long 0x0 # Id
.asciz "C:\\src\\test" # StringData
# StringId (0x100D)
.short 0xe # Record length
.short 0x1605 # Record kind: LF_STRING_ID
.long 0x0 # Id
.asciz "a.cpp" # StringData
.byte 242
.byte 241
# BuildInfo (0x100E)
.short 0x1a # Record length
.short 0x1603 # Record kind: LF_BUILDINFO
.short 0x5 # NumArgs
.long 0x100c # Argument: C:\src\test
.long 0x0 # Argument
.long 0x100d # Argument: a.cpp
.long 0x0 # Argument
.long 0x0 # Argument
.byte 242
.byte 241
.addrsig