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Puyan Lotfi d4c615be8c Followup on Proposal to move MIR physical register namespace to '$' sigil.

Discussed here:

http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html

In preparation for adding support for named vregs we are changing the sigil for
physical registers in MIR to '$' from '%'. This will prevent name clashes of
named physical register with named vregs.

llvm-svn: 323922

2018-01-31 22:04:26 +00:00

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 # RUN: llc -march=hexagon -start-after if-converter %s -o - | FileCheck %s
 # This used to crash.
 # CHECK: add(r0,##g)
 --- |
   @g = global i32 0
   define void @fred() {
     ret void
   }
 ...
 ---
 name: fred
 tracksRegLiveness: true
 body: |
   bb.0:
     liveins: $r0
     $r0 = A2_addi $r0, @g
     $r1 = A2_tfrsi 0
 ...