llvm-6502/test/CodeGen/ARM64/stack-no-frame.ll
Tim Northover 7b837d8c75 ARM64: initial backend import
This adds a second implementation of the AArch64 architecture to LLVM,
accessible in parallel via the "arm64" triple. The plan over the
coming weeks & months is to merge the two into a single backend,
during which time thorough code review should naturally occur.

Everything will be easier with the target in-tree though, hence this
commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-29 10:18:08 +00:00

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736 B
LLVM

; RUN: llc -mtriple=arm64-apple-ios7.0 -o - %s | FileCheck %s
@global = global [20 x i64] zeroinitializer, align 8
; The following function has enough locals to need some restoring, but not a
; frame record. In an intermediate frame refactoring, prologue and epilogue were
; inconsistent about how much to move SP.
define void @test_stack_no_frame() {
; CHECK: test_stack_no_frame
; CHECK: sub sp, sp, #[[STACKSIZE:[0-9]+]]
%local = alloca [20 x i64]
%val = load volatile [20 x i64]* @global, align 8
store volatile [20 x i64] %val, [20 x i64]* %local, align 8
%val2 = load volatile [20 x i64]* %local, align 8
store volatile [20 x i64] %val2, [20 x i64]* @global, align 8
; CHECK: add sp, sp, #[[STACKSIZE]]
ret void
}