Commit Graph

2 Commits

Author SHA1 Message Date
Nirav Dave 7fd992a755 [MC][X86] Enhance X86 Register expression handling to more closely match GCC.
Allow the comparison of x86 registers in the evaluation of assembler
directives. This generalizes and simplifies the extension from r334022
to catch another case found in the Linux kernel.

Reviewers: rnk, void

Reviewed By: rnk

Subscribers: hiraditya, nickdesaulniers, llvm-commits

Differential Revision: https://reviews.llvm.org/D50795

llvm-svn: 339895
2018-08-16 16:31:14 +00:00
Nirav Dave 05b589101e [MC][X86] Allow assembler variable assignment to register name.
Summary:
Allow extended parsing of variable assembler assignment syntax and modify X86 to permit
VAR = register assignment. As we emit these as .set directives when possible, we inline
such expressions in output assembly.

Fixes PR37425.

Reviewers: rnk, void, echristo

Reviewed By: rnk

Subscribers: nickdesaulniers, llvm-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D47545

llvm-svn: 334022
2018-06-05 15:13:39 +00:00