3 Commits

Author SHA1 Message Date
Jim Lin
4e3b037665 [AVR] Fix incorrect register state for LDRdPtr
Summary:
LDRdPtr expanded from LDWRdPtr shouldn't define its second operand(SrcReg).
The second operand is its source register.
Add -verify-machineinstrs into command line of testcases can trigger this error.

Reviewers: dylanmckay

Reviewed By: dylanmckay

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D75437
2020-03-03 17:34:54 +08:00
Dylan McKay
4aedb8a6b7 [AVR] Reserve the Y register in all functions
llvm-svn: 302017
2017-05-03 11:56:01 +00:00
Dylan McKay
a789f40002 [AVR] Add the pseudo instruction expansion pass
Summary:
A lot of the pseudo instructions are required because LLVM assumes that
all integers of the same size as the pointer size are legal. This means
that it will not currently expand 16-bit instructions to their 8-bit
variants because it thinks 16-bit types are legal for the operations.

This also adds all of the CodeGen tests that required the pass to run.

Reviewers: arsenm, kparzysz

Subscribers: wdng, mgorny, modocache, llvm-commits

Differential Revision: https://reviews.llvm.org/D26577

llvm-svn: 287162
2016-11-16 21:58:04 +00:00