https://llvm.org/bugs/show_bug.cgi?id=24628
Bug ID: 24628
Summary: Variable length allocas with large alignments have
improper stack probes
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: Common Code Generator Code
Assignee: unassignedb...@nondot.org
Reporter: john.kare.alsa...@gmail.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Allocas are aligned after allocation, which means that there are up to
<alignment - 1> bytes potentially unprobed.
See http://reviews.llvm.org/D11881 for a failed patch.
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