| Issue |
167391
|
| Summary |
[RISCV] Missing cfi_def_cfa_offset?
|
| Labels |
backend:RISC-V
|
| Assignees |
|
| Reporter |
topperc
|
For some stack adjustmnets, the RISC-V backend may emit a 2 adjustments of the stack pointer without a cfi_def_cfa_offset between them. This occurs when the stack adjust is roughly between +/-2048 and +/-4096. In that case we use 2 ADDIs instead of LUI+ADDI+ADD. gcc does something similar, but issues a cfi_def_cfa_offset between them. Should LLVM be emitting a cfi_def_cfa_offset
Example comparing llvm and gcc https://godbolt.org/z/eh63zn7b1
CC: @lenary @ilovepi @MaskRay @preames
![]()
_______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
