llvm-6502/test/CodeGen/Thumb2/2010-04-15-DynAllocBug.ll
Elena Demikhovsky 55240a5ddb Fixed a bug in dynamic allocation memory on stack.
The alignment of allocated space was wrong, see Bugzila 17345.

Done by Zvi Rackover <zvi.rackover@intel.com>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192573 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-14 07:26:51 +00:00

19 lines
506 B
LLVM

; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mcpu=cortex-a8 -O3 | FileCheck %s
; rdar://7493908
; Make sure the result of the first dynamic_alloc isn't copied back to sp more
; than once. We'll deal with poor codegen later.
define void @t() nounwind ssp {
entry:
; CHECK-LABEL: t:
%size = mul i32 8, 2
; CHECK: sub.w r0, sp, #16
; CHECK: mov sp, r0
%vla_a = alloca i8, i32 %size, align 8
; CHECK: sub.w r0, sp, #16
; CHECK: mov sp, r0
%vla_b = alloca i8, i32 %size, align 8
unreachable
}