1 ; RUN: llc < %s -enable-shrink-wrap=true | FileCheck %s 2 3 ; chkstk cannot come before the usual prologue, since it adjusts ESP. 4 5 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" 6 target triple = "i686-pc-windows-msvc18.0.0" 7 8 %struct.S = type { [12 x i8] } 9 10 define x86_thiscallcc void @call_inalloca(i1 %x) { 11 entry: 12 %argmem = alloca inalloca <{ %struct.S }>, align 4 13 %argidx1 = getelementptr inbounds <{ %struct.S }>, <{ %struct.S }>* %argmem, i32 0, i32 0, i32 0, i32 0 14 %argidx2 = getelementptr inbounds <{ %struct.S }>, <{ %struct.S }>* %argmem, i32 0, i32 0, i32 0, i32 1 15 store i8 42, i8* %argidx2, align 4 16 br i1 %x, label %bb1, label %bb2 17 18 bb1: 19 store i8 42, i8* %argidx1, align 4 20 br label %bb2 21 22 bb2: 23 call void @inalloca_params(<{ %struct.S }>* inalloca nonnull %argmem) 24 ret void 25 } 26 27 ; CHECK-LABEL: _call_inalloca: # @call_inalloca 28 ; CHECK: pushl %ebp 29 ; CHECK: movl %esp, %ebp 30 ; CHECK: movl $12, %eax 31 ; CHECK: calll __chkstk 32 ; CHECK: calll _inalloca_params 33 ; CHECK: movl %ebp, %esp 34 ; CHECK: popl %ebp 35 ; CHECK: retl 36 37 declare void @inalloca_params(<{ %struct.S }>* inalloca) 38
