forked from OSchip/llvm-project
81 lines
2.2 KiB
LLVM
81 lines
2.2 KiB
LLVM
; RUN: llc < %s | FileCheck %s
|
|
|
|
; The aligned alloca means that we have to realign the stack, which forces the
|
|
; use of ESI to address local variables.
|
|
|
|
target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
|
|
target triple = "i686--windows-msvc"
|
|
|
|
; Function Attrs: nounwind
|
|
define void @realigned_try() personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
|
|
entry:
|
|
%x = alloca [4 x i32], align 16
|
|
%arrayidx = getelementptr inbounds [4 x i32], [4 x i32]* %x, i32 0, i32 0
|
|
invoke void @useit(i32* %arrayidx)
|
|
to label %__try.cont unwind label %catch.dispatch
|
|
|
|
catch.dispatch: ; preds = %entry
|
|
%pad = catchpad [i8* bitcast (i32 ()* @"\01?filt$0@0@realigned_try@@" to i8*)]
|
|
to label %__except.ret unwind label %catchendblock
|
|
|
|
__except.ret: ; preds = %catch.dispatch
|
|
catchret %pad to label %__try.cont
|
|
|
|
__try.cont: ; preds = %entry, %__except.ret
|
|
ret void
|
|
|
|
catchendblock: ; preds = %catch.dispatch
|
|
catchendpad unwind to caller
|
|
}
|
|
|
|
; Function Attrs: nounwind argmemonly
|
|
|
|
; Function Attrs: nounwind
|
|
define internal i32 @"\01?filt$0@0@realigned_try@@"() {
|
|
entry:
|
|
ret i32 1
|
|
}
|
|
|
|
declare void @useit(i32*)
|
|
|
|
declare i32 @_except_handler3(...)
|
|
|
|
; CHECK-LABEL: _realigned_try:
|
|
; Prologue
|
|
; CHECK: pushl %ebp
|
|
; CHECK: movl %esp, %ebp
|
|
; CHECK: pushl %ebx
|
|
; CHECK: pushl %edi
|
|
; CHECK: pushl %esi
|
|
; CHECK: andl $-16, %esp
|
|
; CHECK: subl $64, %esp
|
|
; CHECK: movl %esp, %esi
|
|
; Spill EBP
|
|
; CHECK: movl %ebp, 12(%esi)
|
|
; Spill ESP
|
|
; CHECK: movl %esp, 36(%esi)
|
|
; The state is stored at ESI+56, the end of the node is ESI+60.
|
|
; CHECK: movl $-1, 56(%esi)
|
|
;
|
|
; __try
|
|
; CHECK: calll _useit
|
|
;
|
|
; Epilogue
|
|
; CHECK: LBB0_2: # %__try.cont
|
|
; CHECK: leal -12(%ebp), %esp
|
|
; CHECK: popl %esi
|
|
; CHECK: popl %edi
|
|
; CHECK: popl %ebx
|
|
; CHECK: popl %ebp
|
|
; CHECK: retl
|
|
;
|
|
; CHECK: LBB0_1: # %catch.dispatch
|
|
; Restore ESP
|
|
; CHECK: movl -24(%ebp), %esp
|
|
; Recompute ESI by subtracting 60 from the end of the registration node.
|
|
; CHECK: leal -60(%ebp), %esi
|
|
; Restore EBP
|
|
; CHECK: movl 12(%esi), %ebp
|
|
; Rejoin normal control flow
|
|
; CHECK: jmp LBB0_2
|