https://llvm.org/bugs/show_bug.cgi?id=28415
Bug ID: 28415
Summary: optimizer loop removal should issue diagnostics in
presence of "#pragma clang loop vectorize"
Product: new-bugs
Version: trunk
Hardware: Macintosh
OS: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: s...@rogue-research.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
If the optimizer decides to remove a loop that's tagged with "#pragma clang
loop vectorize(enable)", then some kind of diagnostic should be issued, instead
of silence as the case currently.
If/since the pragma is explicitly there, the programmer is obviously
expecting/requiring vectorization, so if that's not performed, she should be
warned.
This is related to PR28374.
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