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| ; RUN: llc -stack-symbol-ordering=0 -mtriple=x86_64-windows-msvc < %s | FileCheck %s --check-prefix=X64
; RUN: llc -stack-symbol-ordering=0 -mtriple=i686-windows-msvc < %s | FileCheck %s --check-prefix=X86
declare void @llvm.va_start(i8*)
declare void @llvm.va_end(i8*)
declare i32 @__CxxFrameHandler3(...)
declare void @g()
define i32 @f(i32 %a, ...) personality i32 (...)* @__CxxFrameHandler3 {
entry:
%ap = alloca i8*
invoke void @g()
to label %return unwind label %catch.dispatch
catch.dispatch: ; preds = %entry
%cs1 = catchswitch within none [label %catch] unwind to caller
catch: ; preds = %catch.dispatch
%0 = catchpad within %cs1 [i8* null, i32 64, i8* null]
%ap1 = bitcast i8** %ap to i8*
call void @llvm.va_start(i8* %ap1)
%argp.cur = load i8*, i8** %ap
%1 = bitcast i8* %argp.cur to i32*
%arg2 = load i32, i32* %1
call void @llvm.va_end(i8* %ap1)
catchret from %0 to label %return
return: ; preds = %entry, %catch
%retval.0 = phi i32 [ %arg2, %catch ], [ -1, %entry ]
ret i32 %retval.0
}
; X64-LABEL: .seh_proc f
; X64: pushq %rbp
; X64: subq $64, %rsp
; X64: leaq 64(%rsp), %rbp
; X64: movq $-2, -8(%rbp)
; X64: movl $-1, -20(%rbp) # 4-byte Folded Spill
; X64: callq g
; X64: .LBB0_1
; X64: movl -20(%rbp), %eax # 4-byte Reload
; X64: addq $64, %rsp
; X64: popq %rbp
; X64-LABEL: "?catch${{[0-9]}}@?0?f@4HA":
; X64: .seh_proc "?catch${{[0-9]}}@?0?f@4HA"
; X64: movq %rdx, 16(%rsp)
; X64: pushq %rbp
; X64: subq $32, %rsp
; X64: leaq 64(%rdx), %rbp
; arg2 is at RBP+40:
; start at arg2
; + 8 for arg1
; + 8 for retaddr
; + 8 for RBP
; + 64 for stackalloc
; - 64 for setframe
; = 40
; X64: movl 24(%rbp), %eax
; X64: movl %eax, -20(%rbp) # 4-byte Spill
; X64: leaq .LBB0_1(%rip), %rax
; X64: addq $32, %rsp
; X64: popq %rbp
; X64: retq # CATCHRET
; X86-LABEL: _f: # @f
; X86: pushl %ebp
; X86: movl %esp, %ebp
; X86: pushl %ebx
; X86: pushl %edi
; X86: pushl %esi
; X86: subl $24, %esp
; X86: movl $-1, -36(%ebp)
; X86: calll _g
; X86: LBB0_[[retbb:[0-9]+]]:
; X86: movl -36(%ebp), %eax
; X86: addl $24, %esp
; X86: popl %esi
; X86: popl %edi
; X86: popl %ebx
; X86: popl %ebp
; X86: retl
; X86: LBB0_[[restorebb:[0-9]+]]: # Block address taken
; X86: addl $12, %ebp
; arg2 is at EBP offset 12:
; + 4 for arg1
; + 4 for retaddr
; + 4 for EBP
; X86: movl 12(%ebp), %eax
; X86: movl %eax, -36(%ebp)
; X86: jmp LBB0_[[retbb]]
; X86-LABEL: "?catch${{[0-9]}}@?0?f@4HA":
; X86: pushl %ebp
; X86: addl $12, %ebp
; Done due to mov %esp, %ebp
; X86: leal 12(%ebp), %eax
; X86: movl $LBB0_[[restorebb]], %eax
; X86: popl %ebp
; X86: retl # CATCHRET
|