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| author | Heejin Ahn <aheejin@gmail.com> | 2018-08-22 21:13:49 +0000 |
|---|---|---|
| committer | Heejin Ahn <aheejin@gmail.com> | 2018-08-22 21:13:49 +0000 |
| commit | 972fc3588bdb52724c8c8b3b2125a95e9cd2e299 (patch) | |
| tree | b7cac11780407755328a47cd502155c2b4d82a3d /llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.h | |
| parent | 6b6d2e010593e499b24048188e91c993c6692407 (diff) | |
| download | bcm5719-llvm-972fc3588bdb52724c8c8b3b2125a95e9cd2e299.tar.gz bcm5719-llvm-972fc3588bdb52724c8c8b3b2125a95e9cd2e299.zip | |
[WebAssembly] Don't write SP back when prolog is generated only for EH
Summary:
When we don't actually have stack-allocated variables but need SP only
to support EH, we don't need to write SP back in the epilog, because we
don't bump down the stack pointer.
Reviewers: dschuff
Subscribers: jgravelle-google, sbc100, sunfish, llvm-commits
Differential Revision: https://reviews.llvm.org/D51114
llvm-svn: 340454
Diffstat (limited to 'llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.h')
| -rw-r--r-- | llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.h b/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.h index ac25b7b37fd..03a6b7c3ad1 100644 --- a/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.h +++ b/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.h @@ -56,6 +56,7 @@ class WebAssemblyFrameLowering final : public TargetFrameLowering { private: bool hasBP(const MachineFunction &MF) const; + bool needsSPForLocalFrame(const MachineFunction &MF) const; bool needsSP(const MachineFunction &MF) const; bool needsSPWriteback(const MachineFunction &MF) const; }; |
