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| author | Oliver Stannard <oliver.stannard@arm.com> | 2024-06-07 10:58:10 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-06-07 10:58:10 +0100 |
| commit | 1a5239251ead73ee57f4e2f7fc93433ac7cf18b1 (patch) | |
| tree | a2c31e3c7dce81d19f390f97e9d9754b5dbeda81 /llvm/lib/IR/Function.cpp | |
| parent | b87a80d4ebca9e1c065f0d2762e500078c4badca (diff) | |
| download | llvm-1a5239251ead73ee57f4e2f7fc93433ac7cf18b1.zip llvm-1a5239251ead73ee57f4e2f7fc93433ac7cf18b1.tar.gz llvm-1a5239251ead73ee57f4e2f7fc93433ac7cf18b1.tar.bz2 | |
[ARM] r11 is reserved when using -mframe-chain=aapcs (#86951)
When using the -mframe-chain=aapcs or -mframe-chain=aapcs-leaf options,
we cannot use r11 as an allocatable register, even if
-fomit-frame-pointer is also used. This is so that r11 will always point
to a valid frame record, even if we don't create one in every function.
Diffstat (limited to 'llvm/lib/IR/Function.cpp')
| -rw-r--r-- | llvm/lib/IR/Function.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/IR/Function.cpp b/llvm/lib/IR/Function.cpp index 13fa1af..3f73502 100644 --- a/llvm/lib/IR/Function.cpp +++ b/llvm/lib/IR/Function.cpp @@ -383,6 +383,9 @@ Function *Function::createWithDefaultAttr(FunctionType *Ty, case FramePointerKind::None: // 0 ("none") is the default. break; + case FramePointerKind::Reserved: + B.addAttribute("frame-pointer", "reserved"); + break; case FramePointerKind::NonLeaf: B.addAttribute("frame-pointer", "non-leaf"); break; |