riscv-gnu-toolchain

GNU toolchain for RISC-V, including GCC

History

Andrew Waterman b5d67b3f53 Avoid t0 for indirect calls We sometimes use t0 as a link register, e.g. for the compressed prologues and epilogues, and so we want microarchitectures to push the RAS when rd=t0 and pop the RAS when rs1=t0. Thus, we want to avoid using t0 for indirect calls to avoid errant RAS operations.	11 years ago
..
gcc	Avoid t0 for indirect calls	11 years ago
libgcc/config/riscv	gcc: add experimental support for compressed prologues/epilogues	11 years ago

Andrew Waterman b5d67b3f53 Avoid t0 for indirect calls

We sometimes use t0 as a link register, e.g. for the compressed prologues
and epilogues, and so we want microarchitectures to push the RAS when
rd=t0 and pop the RAS when rs1=t0.  Thus, we want to avoid using t0 for
indirect calls to avoid errant RAS operations.

11 years ago

gcc

Avoid t0 for indirect calls

11 years ago

libgcc/config/riscv

gcc: add experimental support for compressed prologues/epilogues

11 years ago