xref: /llvm-project/llvm/test/CodeGen/ARM/Windows/alloca-no-stack-arg-probe.ll (revision bed1c7f061aa12417aa081e334afdba45767b938) 
1; RUN: llc -mtriple thumbv7-windows -filetype asm -o - %s | FileCheck %s
2
3declare arm_aapcs_vfpcc i32 @num_entries()
4
5define arm_aapcs_vfpcc void @test___builtin_alloca() "no-stack-arg-probe" {
6entry:
7  %array = alloca ptr, align 4
8  %call = call arm_aapcs_vfpcc i32 @num_entries()
9  %mul = mul i32 4, %call
10  %0 = alloca i8, i32 %mul
11  store ptr %0, ptr %array, align 4
12  ret void
13}
14
15; CHECK: bl num_entries
16; CHECK: movs [[R1:r[0-9]+]], #7
17; CHECK: add.w [[R0:r[0-9]+]], [[R1]], [[R0]], lsl #2
18; CHECK: bic [[R0]], [[R0]], #7
19; CHECK-NOT: bl __chkstk
20; CHECK: sub.w [[R0]], sp, [[R0]]
21; CHECK: mov sp, [[R0]]
22