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# RUN: llvm-mc -triple=x86_64-windows -filetype=obj < %s -o %t.obj
# RUN: llvm-objdump -d %t.obj | FileCheck %s --check-prefix=ASM
# RUN: llvm-pdbutil dump -symbols %t.obj | FileCheck %s --check-prefix=CODEVIEW
# C source to generate the assembly:
# volatile int unlikely_cond = 0;
# extern void __declspec(noreturn) abort();
# __forceinline void f() {
# if (unlikely_cond)
# abort();
# }
# void g() {
# unlikely_cond = 0;
# f();
# unlikely_cond = 0;
# }
# This test is interesting because the inlined instructions are discontiguous.
# LLVM's block layout algorithms will put the 'abort' call last, as it is
# considered highly unlikely to execute. This is similar to what it does for
# calls to __asan_report*, for which it is very important to have an accurate
# stack trace.
# ASM: 0000000000000000 <g>:
# ASM-NEXT: 0: 48 83 ec 28 subq $40, %rsp
# ASM-NEXT: 4: c7 05 fc ff ff ff 00 00 00 00 movl $0, -4(%rip)
# Begin inline loc (matches cv_loc below)
# ASM-NEXT: e: 83 3d ff ff ff ff 00 cmpl $0, -1(%rip)
# ASM-NEXT: 15: 75 0f jne 0x26 <g+0x26>
# End inline loc
# ASM-NEXT: 17: c7 05 fc ff ff ff 00 00 00 00 movl $0, -4(%rip)
# ASM-NEXT: 21: 48 83 c4 28 addq $40, %rsp
# ASM-NEXT: 25: c3 retq
# Begin inline loc (matches cv_loc below)
# ASM-NEXT: 26: e8 00 00 00 00 callq 0x2b <g+0x2b>
# ASM-NEXT: 2b: 0f 0b ud2
# End inline loc
# CODEVIEW: S_INLINESITE [size = 24]
# CODEVIEW-NEXT: inlinee = 0x1002 (f), parent = 0, end = 0
# CODEVIEW-NEXT: 0B2E code 0xE (+0xE) line 1 (+1)
# CODEVIEW-NEXT: 0409 code end 0x17 (+0x9)
# CODEVIEW-NEXT: 0B2F code 0x26 (+0xF) line 2 (+1)
# CODEVIEW-NEXT: 0407 code end 0x2D (+0x7)
.text
.globl g
g: # @g
.Lfunc_begin0:
.cv_func_id 0
.cv_file 1 "C:\\src\\llvm\\build\\t.cpp"
.cv_loc 0 1 7 0 is_stmt 0 # t.cpp:7:0
.seh_proc g
subq $40, %rsp
.seh_stackalloc 40
.seh_endprologue
.cv_loc 0 1 8 17 # t.cpp:8:17
movl $0, unlikely_cond(%rip)
.cv_inline_site_id 1 within 0 inlined_at 1 9 3
.cv_loc 1 1 4 7 # t.cpp:4:7
cmpl $0, unlikely_cond(%rip)
jne .LBB0_1
.cv_loc 0 1 10 17 # t.cpp:10:17
movl $0, unlikely_cond(%rip)
.cv_loc 0 1 11 1 # t.cpp:11:1
addq $40, %rsp
retq
.LBB0_1: # %if.then.i
.cv_loc 1 1 5 5 # t.cpp:5:5
callq abort
ud2
.Lfunc_end0:
.seh_handlerdata
.text
.seh_endproc
.bss
.globl unlikely_cond # @unlikely_cond
.p2align 2
unlikely_cond:
.long 0 # 0x0
.section .debug$S,"dr"
.p2align 2
.long 4 # Debug section magic
.long 246 # Inlinee lines subsection
.long .Ltmp9-.Ltmp8 # Subsection size
.Ltmp8:
.long 0 # Inlinee lines signature
# Inlined function f starts at t.cpp:3
.long 4098 # Type index of inlined function
.long 0 # Offset into filechecksum table
.long 3 # Starting line number
.Ltmp9:
.p2align 2
.long 241 # Symbol subsection for g
.long .Ltmp11-.Ltmp10 # Subsection size
.Ltmp10:
.short .Ltmp13-.Ltmp12 # Record length
.Ltmp12:
.short 4423 # Record kind: S_GPROC32_ID
.long 0 # PtrParent
.long 0 # PtrEnd
.long 0 # PtrNext
.long .Lfunc_end0-g # Code size
.long 0 # Offset after prologue
.long 0 # Offset before epilogue
.long 4099 # Function type index
.secrel32 g # Function section relative address
.secidx g # Function section index
.byte 0 # Flags
.asciz "g" # Function name
.Ltmp13:
.short .Ltmp15-.Ltmp14 # Record length
.Ltmp14:
.short 4429 # Record kind: S_INLINESITE
.long 0 # PtrParent
.long 0 # PtrEnd
.long 4098 # Inlinee type index
.cv_inline_linetable 1 1 3 .Lfunc_begin0 .Lfunc_end0
.Ltmp15:
.short 2 # Record length
.short 4430 # Record kind: S_INLINESITE_END
.short 2 # Record length
.short 4431 # Record kind: S_PROC_ID_END
.Ltmp11:
.p2align 2
.cv_linetable 0, g, .Lfunc_end0
.long 241 # Symbol subsection for globals
.long .Ltmp17-.Ltmp16 # Subsection size
.Ltmp16:
.short .Ltmp19-.Ltmp18 # Record length
.Ltmp18:
.short 4365 # Record kind: S_GDATA32
.long 4100 # Type
.secrel32 unlikely_cond # DataOffset
.secidx unlikely_cond # Segment
.asciz "unlikely_cond" # Name
.Ltmp19:
.Ltmp17:
.p2align 2
.cv_filechecksums # File index to string table offset subsection
.cv_stringtable # String table
.section .debug$T,"dr"
.p2align 2
.long 4 # Debug section magic
# ArgList (0x1000) {
# TypeLeafKind: LF_ARGLIST (0x1201)
# NumArgs: 0
# Arguments [
# ]
# }
.byte 0x06, 0x00, 0x01, 0x12
.byte 0x00, 0x00, 0x00, 0x00
# Procedure (0x1001) {
# TypeLeafKind: LF_PROCEDURE (0x1008)
# ReturnType: void (0x3)
# CallingConvention: NearC (0x0)
# FunctionOptions [ (0x0)
# ]
# NumParameters: 0
# ArgListType: () (0x1000)
# }
.byte 0x0e, 0x00, 0x08, 0x10
.byte 0x03, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x10, 0x00, 0x00
# FuncId (0x1002) {
# TypeLeafKind: LF_FUNC_ID (0x1601)
# ParentScope: 0x0
# FunctionType: void () (0x1001)
# Name: f
# }
.byte 0x0e, 0x00, 0x01, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x01, 0x10, 0x00, 0x00
.byte 0x66, 0x00, 0xf2, 0xf1
# FuncId (0x1003) {
# TypeLeafKind: LF_FUNC_ID (0x1601)
# ParentScope: 0x0
# FunctionType: void () (0x1001)
# Name: g
# }
.byte 0x0e, 0x00, 0x01, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x01, 0x10, 0x00, 0x00
.byte 0x67, 0x00, 0xf2, 0xf1
# Modifier (0x1004) {
# TypeLeafKind: LF_MODIFIER (0x1001)
# ModifiedType: int (0x74)
# Modifiers [ (0x2)
# Volatile (0x2)
# ]
# }
.byte 0x0a, 0x00, 0x01, 0x10
.byte 0x74, 0x00, 0x00, 0x00
.byte 0x02, 0x00, 0xf2, 0xf1
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