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| author | Sergey Kachkov <sergey.kachkov@syntacore.com> | 2022-10-19 18:12:33 +0300 |
|---|---|---|
| committer | Sergey Kachkov <sergey.kachkov@syntacore.com> | 2022-12-06 12:45:59 +0300 |
| commit | 132dc442ba3c137c9b3595a76a3214c96c59d884 (patch) | |
| tree | ffe65ee82ac6d52c6a7ec8adf2b01a8dbf3bad78 /llvm/tools/llvm-objdump/llvm-objdump.cpp | |
| parent | 7e31d0723dbf8ab9355cb58cfc6309be51be3e25 (diff) | |
| download | llvm-132dc442ba3c137c9b3595a76a3214c96c59d884.zip llvm-132dc442ba3c137c9b3595a76a3214c96c59d884.tar.gz llvm-132dc442ba3c137c9b3595a76a3214c96c59d884.tar.bz2 | |
[RISCV] Generate .cfi_def_cfa_expression for RVV stack adjustment
Cannonical frame address after RVV stack adjustment is sp + StackSize +
RVVStackSize * vlenb, and since vlenb is unknown at compile-time (but it
is a constant for particular HW implementation), emit
.cfi_def_cfa_expression so libunwind can read VLENB CSR register at
run-time and obtain correct frame address.
Fixes https://github.com/llvm/llvm-project/issues/58356 (but additional
run-time support for reading CSR may be required)
Differential Revision: https://reviews.llvm.org/D136263
Diffstat (limited to 'llvm/tools/llvm-objdump/llvm-objdump.cpp')
0 files changed, 0 insertions, 0 deletions