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; RUN: llc < %s | FileCheck %s
target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
target triple = "i686-pc-windows-msvc18.0.0"
%struct.T = type { i64, [3 x i32] }
; Function Attrs: nounwind optsize
define void @f(i8* %p, i8* %q, i32* inalloca nocapture %unused) #0 {
entry:
%g = alloca %struct.T, align 8
%r = alloca i32, align 8
store i32 0, i32* %r, align 4
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %p, i8* %q, i32 24, i32 8, i1 false)
br label %while.body
while.body: ; preds = %while.body, %entry
%load = load i32, i32* %r, align 4
%dec = add nsw i32 %load, -1
store i32 %dec, i32* %r, align 4
call void @g(%struct.T* %g)
%tobool = icmp eq i32 %dec, 0
br i1 %tobool, label %while.end, label %while.body
while.end: ; preds = %while.body
ret void
}
; Function Attrs: argmemonly nounwind
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #1
declare void @g(%struct.T*)
; CHECK-LABEL: _f:
; CHECK: pushl %ebp
; CHECK: movl %esp, %ebp
; CHECK: andl $-8, %esp
; CHECK-NOT: movl %esp, %esi
; CHECK: rep;movsl
; CHECK: leal 8(%esp), %esi
; CHECK: decl (%esp)
; CHECK: seto %al
; CHECK: lahf
; CHECK: movl %eax, %edi
; CHECK: pushl %esi
; CHECK: calll _g
; CHECK: addl $4, %esp
; CHECK: movl %edi, %eax
; CHECK: addb $127, %al
; CHECK: sahf
attributes #0 = { nounwind optsize }
attributes #1 = { argmemonly nounwind }
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