1; RUN: llc -stack-symbol-ordering=0 < %s | FileCheck %s 2 3; The aligned alloca means that we have to realign the stack, which forces the 4; use of ESI to address local variables. 5 6target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" 7target triple = "i686--windows-msvc" 8 9; Function Attrs: nounwind 10define void @realigned_try() personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) { 11entry: 12 %x = alloca [4 x i32], align 16 13 %arrayidx = getelementptr inbounds [4 x i32], [4 x i32]* %x, i32 0, i32 0 14 invoke void @useit(i32* %arrayidx) 15 to label %__try.cont unwind label %catch.dispatch 16 17catch.dispatch: ; preds = %entry 18 %cs1 = catchswitch within none [label %__except.ret] unwind to caller 19 20__except.ret: ; preds = %catch.dispatch 21 %pad = catchpad within %cs1 [i8* bitcast (i32 ()* @"\01?filt$0@0@realigned_try@@" to i8*)] 22 catchret from %pad to label %__try.cont 23 24__try.cont: ; preds = %entry, %__except.ret 25 ret void 26} 27 28; Function Attrs: nounwind argmemonly 29 30; Function Attrs: nounwind 31define internal i32 @"\01?filt$0@0@realigned_try@@"() { 32entry: 33 ret i32 1 34} 35 36declare void @useit(i32*) 37 38declare i32 @_except_handler3(...) 39 40; CHECK-LABEL: _realigned_try: 41; Prologue 42; CHECK: pushl %ebp 43; CHECK: movl %esp, %ebp 44; CHECK: pushl %ebx 45; CHECK: pushl %edi 46; CHECK: pushl %esi 47; CHECK: andl $-16, %esp 48; CHECK: subl $64, %esp 49; CHECK: movl %esp, %esi 50; Spill EBP 51; CHECK: movl %ebp, 12(%esi) 52; Spill ESP 53; CHECK: movl %esp, 36(%esi) 54; The state is stored at ESI+56, the end of the node is ESI+60. 55; CHECK: movl $-1, 56(%esi) 56; 57; __try 58; CHECK: calll _useit 59; 60; Epilogue 61; CHECK: LBB0_2: # %__try.cont 62; CHECK: leal -12(%ebp), %esp 63; CHECK: popl %esi 64; CHECK: popl %edi 65; CHECK: popl %ebx 66; CHECK: popl %ebp 67; CHECK: retl 68; 69; CHECK: LBB0_1: # %__except.ret 70; Restore ESP 71; CHECK: movl -24(%ebp), %esp 72; Recompute ESI by subtracting 60 from the end of the registration node. 73; CHECK: leal -60(%ebp), %esi 74; Restore EBP 75; CHECK: movl 12(%esi), %ebp 76; Rejoin normal control flow 77; CHECK: jmp LBB0_2 78