llvm-project/llvm/test/CodeGen/MIR
Justin Bogner 6c452834a1 MIR: Print the register class or bank in vreg defs
This updates the MIRPrinter to include the regclass when printing
virtual register defs, which is already valid syntax for the
parser. That is, given 64 bit %0 and %1 in a "gpr" regbank,

  %1(s64) = COPY %0(s64)

would now be written as

  %1:gpr(s64) = COPY %0(s64)

While this change alone introduces a bit of redundancy with the
registers block, it allows us to update the tests to be more concise
and understandable and brings us closer to being able to remove the
registers block completely.

Note: We generally only print the class in defs, but there is one
exception. If there are uses without any defs whatsoever, we'll print
the class on all uses. I'm not completely convinced this comes up in
meaningful machine IR, but for now the MIRParser and MachineVerifier
both accept that kind of stuff, so we don't want to have a situation
where we can print something we can't parse.

llvm-svn: 316479
2017-10-24 18:04:54 +00:00
..
AArch64 MIR: Print the register class or bank in vreg defs 2017-10-24 18:04:54 +00:00
AMDGPU MIR: Print the register class or bank in vreg defs 2017-10-24 18:04:54 +00:00
ARM [IfConversion] Add testcases [NFC] 2017-09-20 08:23:29 +00:00
Generic [RegAllocFast] Add the proper initialize method to use the .mir infrastructure 2017-07-07 19:25:42 +00:00
Hexagon [Hexagon] Handle Hexagon-specific machine operand target flags in MIR 2017-07-10 18:31:02 +00:00
Mips MIRParser: Use shorter cfi identifiers 2016-07-26 18:20:00 +00:00
NVPTX MIR: Print the register class or bank in vreg defs 2017-10-24 18:04:54 +00:00
PowerPC MIRParser/MIRPrinter: Compute isSSA instead of printing/parsing it. 2016-08-24 01:32:41 +00:00
X86 MIR: Print the register class or bank in vreg defs 2017-10-24 18:04:54 +00:00
README Add README describing the intention of test/CodeGen/MIR 2016-12-09 20:16:12 +00:00

README

This directory contains tests for the MIR file format parser and printer. It
was necessary to split the tests across different targets as no single target
covers all features available in machine IR.

Tests for codegen passes should NOT be here but in test/CodeGen/sometarget. As
a rule of thumb this directory should only contain tests using
'llc -run-pass none'.