mirror of
https://github.com/intel/llvm.git
synced 2026-02-05 22:07:01 +08:00
38ed1db7e8
The current TLSDESC optimization code assumes: ``` leaq x@tlsdesc(%rip), %rax call *x@tlscall(%rax) # adjacent ``` From https://gitlab.freedesktop.org/mesa/mesa/-/issues/5665 , it seems that the two instructions may not be adjacent in GCC 10's output: ``` leaq x@tlsdesc(%rip), %rax something else call *x@tlscall(%rax) ``` This patch supports the case. While here, support non-RAX registers for R_X86_64_GOTPC32_TLSDESC, in case the compiler generates inefficient: ``` leaq x@tlsdesc(%rip), %rcx # or %rdx, %rbx, %rdi, ... movq %rcx, %rax call *x@tlscall(%rax) # GNU ld/gold error for non-RAX ``` Differential Revision: https://reviews.llvm.org/D114416
lld Documentation ================= The lld documentation is written using the Sphinx documentation generator. It is currently tested with Sphinx 1.1.3. We currently use the 'nature' theme and a Beaker inspired structure. See sphinx_intro.rst for more details.