https://bugs.llvm.org/show_bug.cgi?id=42974
Bug ID: 42974
Summary: implement -ffixed-* for q* registers
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: AArch64
Assignee: unassignedb...@nondot.org
Reporter: ndesaulni...@google.com
CC: arnaud.degrandmai...@arm.com,
llvm-bugs@lists.llvm.org, peter.sm...@linaro.org,
ties.st...@arm.com
For the aarch64 Linux kernel, we recently considered the use of -ffixed-* for
q* (NEON SIMD) registers. [0]
Currently, LLVM and Clang support -ffixed- for most x* registers [1], but not
any q* registers.
It's probably not too much work to implement this now in a similar fashion to
the x* registers, especially now with the monorepo.
[0] https://www.spinics.net/lists/linux-crypto/msg41373.html
[1] see r342100
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