https://bugs.llvm.org/show_bug.cgi?id=39045
Bug ID: 39045
Summary: TableGen -gen-global-isel ignores GISelPredicateCode
when two PatFrag objects have the same frags value
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: GlobalISel
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Created attachment 20909
--> https://bugs.llvm.org/attachment.cgi?id=20909&action=edit
Failing test case
To reproduce:
llvm-tblgen -gen-global-isel gisel-predicate-code-ignored.td -I$INCLUDE_DIR
It looks like the issue is that the generated match table thinks that frag_a
and frag_b are the same, and so the predicates defined in GISelPredicateCode
are never checked.
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