1; RUN: llc -O0 -mtriple thumbv7-windows-itanium -filetype asm -o - %s | FileCheck %s
2; RUN: llc -O0 -mtriple thumbv7-windows-msvc -filetype asm -o - %s | FileCheck %s
3; RUN: llc -O0 -mtriple thumbv7-windows-mingw32 -filetype asm -o - %s | FileCheck %s
4
5declare arm_aapcs_vfpcc i32 @num_entries()
6
7define arm_aapcs_vfpcc void @test___builtin_alloca() {
8entry:
9  %array = alloca i8*, align 4
10  %call = call arm_aapcs_vfpcc i32 @num_entries()
11  %mul = mul i32 4, %call
12  %0 = alloca i8, i32 %mul
13  store i8* %0, i8** %array, align 4
14  ret void
15}
16
17; CHECK: bl num_entries
18; Any register is actually valid here, but turns out we use lr,
19; because we do not have the kill flag on R0.
20; CHECK: movs [[R1:r1]], #7
21; CHECK: add.w [[R0:r[0-9]+]], [[R1]], [[R0]], lsl #2
22; CHECK: bic [[R0]], [[R0]], #4
23; CHECK: lsrs r4, [[R0]], #2
24; CHECK: bl __chkstk
25; CHECK: sub.w sp, sp, r4
26
27