https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104925
Bug ID: 104925
Summary: [nvptx] Use "%" as register prefix
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: trivial
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
Target Milestone: ---
In the ptx isa doc I read:
...
PTX allows the percentage sign as the first character of an identifier. The
percentage sign can be used to avoid name conflicts, e.g., between user-
defined variable names and compiler-generated names.
...
I've been using variable names for for instance temporary variables in various
insn patterns without percentage signs, so there's the potential for a clash
with user-defined names.
This should be fixed by prefixing with '%'.
