LLVM Bugzilla is read-only and represents the historical archive of all LLVM issues filled before November 26, 2021. Use github to submit LLVM bugs

Bug 640 - [instcombine] Invalid sink of vaarg
Summary: [instcombine] Invalid sink of vaarg
Status: RESOLVED FIXED
Alias: None
Product: libraries
Classification: Unclassified
Component: Scalar Optimizations (show other bugs)
Version: 1.5
Hardware: All All
: P normal
Assignee: Chris Lattner
URL:
Keywords: miscompilation, regression
Depends on:
Blocks:
 
Reported: 2005-10-27 02:18 PDT by Markus F.X.J. Oberhumer
Modified: 2010-02-22 12:54 PST (History)
1 user (show)

See Also:
Fixed By Commit(s):

Attachments
stdarg_bug.c (1.21 KB, text/plain)
2005-10-27 02:18 PDT, Markus F.X.J. Oberhumer 		Details
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Markus F.X.J. Oberhumer 2005-10-27 02:18:22 PDT 
As of CVS 20051027 the test program (stdarg_bug.c) seems broken with both the C
and i386 backends.
Comment 1 Markus F.X.J. Oberhumer 2005-10-27 02:18:50 PDT 
Created attachment 274 [details]
stdarg_bug.c
Comment 2 Chris Lattner 2005-10-27 12:15:40 PDT 
Very nice catch.  Patch here:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20051024/029118.html

Testcase here:
 llvm-test/SingleSource/Regression/C/PR640.c

Thanks again!

-Chris