https://bugs.llvm.org/show_bug.cgi?id=41402
Bug ID: 41402
Summary: aarch64 doesn't allow pointer to static struct for "i"
constrain of inline assembly
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: ndesaulni...@google.com
CC: isanb...@gmail.com, jykni...@google.com,
kristof.be...@arm.com, llvm-bugs@lists.llvm.org,
neeil...@live.com, richard-l...@metafoo.co.uk,
srhi...@google.com
Blocks: 4068
Created attachment 21741
--> https://bugs.llvm.org/attachment.cgi?id=21741&action=edit
arm64_i.c
See attached test case. It seems that x86_64 allows the input argument to an
extended inline asm block to be a pointer to a static struct, but aarch64 does
not.
This pattern is used in the Linux kernel (as part of the static_key runtime
patching) and without support blocks landing asm goto support
Referenced Bugs:
https://bugs.llvm.org/show_bug.cgi?id=4068
[Bug 4068] [Meta] Compiling the Linux kernel with clang
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