200 lines
5.8 KiB
ArmAsm
200 lines
5.8 KiB
ArmAsm
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# RUN: llvm-mc -triple=i686-windows-msvc -filetype=obj < %s | llvm-readobj --codeview - | FileCheck %s
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# Test for .cv_fpo_stackalign. We should generate FPO data that restores CSRs
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# at each instruction, and in the last FrameData we should use the '@'
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# alignment operator to define $T0, the vframe value.
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# Based on this C code:
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# void usevals(int, int, double*);
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# int realign_with_csrs() {
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# int a = getval();
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# int b = getval();
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# double __declspec(align(8)) force_alignment = 0.42;
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# usevals(a, b, &force_alignment);
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# return a + b;
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# }
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# CHECK: Subsection [
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# CHECK: SubSectionType: Symbols (0xF1)
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# CHECK: Compile3Sym {
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# CHECK: Kind: S_COMPILE3 (0x113C)
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# CHECK: }
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# CHECK: ]
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# CHECK: Subsection [
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# CHECK: SubSectionType: FrameData (0xF5)
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# CHECK: FrameData {
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# CHECK: FrameFunc [
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# CHECK: $T0 .raSearch =
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# CHECK: $eip $T0 ^ =
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# CHECK: $esp $T0 4 + =
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# CHECK: ]
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# CHECK: }
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# CHECK: FrameData {
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# CHECK: FrameFunc [
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# CHECK: $T0 .raSearch =
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# CHECK: $eip $T0 ^ =
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# CHECK: $esp $T0 4 + =
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# CHECK: $ebp $T0 4 - ^ =
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# CHECK: ]
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# CHECK: }
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# CHECK: FrameData {
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# CHECK: FrameFunc [
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# CHECK: $T0 $ebp 4 + =
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# CHECK: $eip $T0 ^ =
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# CHECK: $esp $T0 4 + =
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# CHECK: $ebp $T0 4 - ^ =
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# CHECK: ]
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# CHECK: }
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# CHECK: FrameData {
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# CHECK: FrameFunc [
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# CHECK: $T0 $ebp 4 + =
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# CHECK: $eip $T0 ^ =
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# CHECK: $esp $T0 4 + =
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# CHECK: $ebp $T0 4 - ^ =
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# CHECK: $edi $T0 8 - ^ =
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# CHECK: ]
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# CHECK: }
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# CHECK: FrameData {
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# CHECK: FrameFunc [
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# CHECK: $T0 $ebp 4 + =
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# CHECK: $eip $T0 ^ =
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# CHECK: $esp $T0 4 + =
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# CHECK: $ebp $T0 4 - ^ =
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# CHECK: $edi $T0 8 - ^ =
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# CHECK: $esi $T0 12 - ^ =
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# CHECK: ]
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# CHECK: }
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# CHECK: FrameData {
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# CHECK: FrameFunc [
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# CHECK: $T1 $ebp 4 + =
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# CHECK: $T0 $T1 12 - 8 @ =
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# CHECK: $eip $T1 ^ =
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# CHECK: $esp $T1 4 + =
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# CHECK: $ebp $T1 4 - ^ =
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# CHECK: $edi $T1 8 - ^ =
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# CHECK: $esi $T1 12 - ^ =
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# CHECK: ]
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# CHECK: }
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# CHECK: ]
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# CHECK: Subsection [
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# CHECK: SubSectionType: Symbols (0xF1)
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# CHECK: ]
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# CHECK: Subsection [
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# CHECK: SubSectionType: FileChecksums (0xF4)
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# CHECK: ]
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# CHECK: Subsection [
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# CHECK: SubSectionType: StringTable (0xF3)
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# CHECK: ]
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.text
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.def _realign_with_csrs; .scl 2; .type 32; .endef
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.globl _realign_with_csrs # -- Begin function realign_with_csrs
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_realign_with_csrs: # @realign_with_csrs
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Lfunc_begin0:
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.cv_func_id 0
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.cv_file 1 "C:\\src\\llvm-project\\build\\t.c" "2A4F9B6BBBF7845521201755D1B14ACC" 1
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.cv_loc 0 1 4 0 # t.c:4:0
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.cv_fpo_proc _realign_with_csrs 0
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# %bb.0: # %entry
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pushl %ebp
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.cv_fpo_pushreg %ebp
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movl %esp, %ebp
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.cv_fpo_setframe %ebp
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Ltmp0:
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pushl %edi
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.cv_fpo_pushreg %edi
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pushl %esi
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.cv_fpo_pushreg %esi
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andl $-8, %esp
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.cv_fpo_stackalign 8
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subl $8, %esp
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.cv_fpo_stackalloc 8
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.cv_fpo_endprologue
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.cv_loc 0 1 5 0 # t.c:5:0
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calll _getval
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movl %eax, %esi
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.cv_loc 0 1 6 0 # t.c:6:0
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calll _getval
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movl %eax, %edi
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movl %esp, %eax
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.cv_loc 0 1 7 0 # t.c:7:0
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movl $1071309127, 4(%esp) # imm = 0x3FDAE147
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movl $-1374389535, (%esp) # imm = 0xAE147AE1
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.cv_loc 0 1 8 0 # t.c:8:0
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pushl %eax
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pushl %edi
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pushl %esi
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calll _usevals
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addl $12, %esp
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.cv_loc 0 1 9 0 # t.c:9:0
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addl %esi, %edi
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movl %edi, %eax
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leal -8(%ebp), %esp
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popl %esi
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popl %edi
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popl %ebp
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retl
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Ltmp1:
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.cv_fpo_endproc
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Lfunc_end0:
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# -- End function
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.section .debug$S,"dr"
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.p2align 2
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.long 4 # Debug section magic
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.long 241
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.long Ltmp3-Ltmp2 # Subsection size
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Ltmp2:
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.short Ltmp5-Ltmp4 # Record length
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Ltmp4:
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.short 4412 # Record kind: S_COMPILE3
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.long 0 # Flags and language
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.short 7 # CPUType
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.short 8 # Frontend version
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.short 0
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.short 0
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.short 0
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.short 8000 # Backend version
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.short 0
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.short 0
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.short 0
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.asciz "clang version 8.0.0 " # Null-terminated compiler version string
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Ltmp5:
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Ltmp3:
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.p2align 2
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.cv_fpo_data _realign_with_csrs
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.long 241 # Symbol subsection for realign_with_csrs
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.long Ltmp7-Ltmp6 # Subsection size
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Ltmp6:
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.short Ltmp9-Ltmp8 # Record length
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Ltmp8:
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.short 4423 # Record kind: S_GPROC32_ID
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.long 0 # PtrParent
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.long 0 # PtrEnd
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.long 0 # PtrNext
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.long Lfunc_end0-_realign_with_csrs # Code size
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.long 0 # Offset after prologue
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.long 0 # Offset before epilogue
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.long 0 # Function type index
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.secrel32 _realign_with_csrs # Function section relative address
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.secidx _realign_with_csrs # Function section index
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.byte 0 # Flags
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.asciz "realign_with_csrs" # Function name
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Ltmp9:
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.short Ltmp11-Ltmp10 # Record length
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Ltmp10:
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.short 4114 # Record kind: S_FRAMEPROC
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.long 12 # FrameSize
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.long 0 # Padding
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.long 0 # Offset of padding
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.long 8 # Bytes of callee saved registers
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.long 0 # Exception handler offset
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.short 0 # Exception handler section
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.long 1196032 # Flags (defines frame register)
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Ltmp11:
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.short 2 # Record length
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.short 4431 # Record kind: S_PROC_ID_END
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Ltmp7:
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.p2align 2
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.cv_filechecksums # File index to string table offset subsection
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.cv_stringtable # String table
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