25 lines
703 B
LLVM
25 lines
703 B
LLVM
; 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
|
|
|