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| author | Tim Northover <tnorthover@apple.com> | 2014-03-29 10:18:08 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2014-03-29 10:18:08 +0000 |
| commit | 7b837d8c75f78fe55c9b348b9ec2281169a48d2a (patch) | |
| tree | e8e01e73cf4d0723a13e49e4b5d8a66f896d184f /test/CodeGen/ARM64/stacksave.ll | |
| parent | 69bd9577fc423edea13479eaacf7b1844faa6c6a (diff) | |
| download | llvm-7b837d8c75f78fe55c9b348b9ec2281169a48d2a.tar.gz llvm-7b837d8c75f78fe55c9b348b9ec2281169a48d2a.tar.bz2 llvm-7b837d8c75f78fe55c9b348b9ec2281169a48d2a.tar.xz | |
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
Diffstat (limited to 'test/CodeGen/ARM64/stacksave.ll')
| -rw-r--r-- | test/CodeGen/ARM64/stacksave.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/ARM64/stacksave.ll b/test/CodeGen/ARM64/stacksave.ll new file mode 100644 index 0000000000..a79e99ba32 --- /dev/null +++ b/test/CodeGen/ARM64/stacksave.ll @@ -0,0 +1,20 @@ +; RUN: llc < %s -verify-coalescing +; <rdar://problem/11522048> +target triple = "arm64-apple-macosx10.8.0" + +; Verify that we can handle spilling the stack pointer without attempting +; spilling it directly. +; CHECK: f +; CHECK: mov [[X0:x[0-9]+]], sp +; CHECK: str [[X0]] +; CHECK: inlineasm +define void @f() nounwind ssp { +entry: + %savedstack = call i8* @llvm.stacksave() nounwind + call void asm sideeffect "; inlineasm", "~{x0},~{x1},~{x2},~{x3},~{x4},~{x5},~{x6},~{x7},~{x8},~{x9},~{x10},~{x11},~{x12},~{x13},~{x14},~{x15},~{x16},~{x17},~{x18},~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27},~{x28},~{fp},~{lr},~{sp},~{memory}"() nounwind + call void @llvm.stackrestore(i8* %savedstack) nounwind + ret void +} + +declare i8* @llvm.stacksave() nounwind +declare void @llvm.stackrestore(i8*) nounwind |