[LLVMbugs] [Bug 4634] New: code gen issue for array arithmetic with casts
bugzilla-daemon at cs.uiuc.edu
bugzilla-daemon at cs.uiuc.edu
Mon Jul 27 15:46:42 PDT 2009
http://llvm.org/bugs/show_bug.cgi?id=4634
Summary: code gen issue for array arithmetic with casts
Product: libraries
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Backend: ARM
AssignedTo: unassignedbugs at nondot.org
ReportedBy: robert at muth.org
CC: llvmbugs at cs.uiuc.edu
Created an attachment (id=3248)
--> (http://llvm.org/bugs/attachment.cgi?id=3248)
source code for reproducer
The attached code is a reproducer for this bug.
In essence, the following macro returns a constant value:
#define bin_at(i) ((mbinptr)((char*)&(Xav[2*(i) + 2]) - 2*sizeof(int)))
no matter what the value of i.
Disclaimer:
The problem occurred on an svn revision a couple of weeks old
on a linux cross-compilation environment.
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