| ; RUN: llc -O0 -mtriple thumbv7-windows-itanium -filetype asm -o - %s | FileCheck %s |
| |
| declare arm_aapcs_vfpcc i32 @num_entries() |
| |
| define arm_aapcs_vfpcc void @test___builtin_alloca() { |
| entry: |
| %array = alloca i8*, align 4 |
| %call = call arm_aapcs_vfpcc i32 @num_entries() |
| %mul = mul i32 4, %call |
| %0 = alloca i8, i32 %mul |
| store i8* %0, i8** %array, align 4 |
| ret void |
| } |
| |
| ; CHECK: bl num_entries |
| ; Any register is actually valid here, but turns out we use lr, |
| ; because we do not have the kill flag on R0. |
| ; CHECK: mov.w [[R1:lr]], #7 |
| ; CHECK: add.w [[R0:r[0-9]+]], [[R1]], [[R0]], lsl #2 |
| ; CHECK: bic [[R0]], [[R0]], #7 |
| ; CHECK: lsrs r4, [[R0]], #2 |
| ; CHECK: bl __chkstk |
| ; CHECK: sub.w sp, sp, r4 |
| |