http://llvm.org/bugs/show_bug.cgi?id=4542
Summary: target-dependent optimization with unspecified target
Product: new-bugs
Version: unspecified
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Created an attachment (id=3183)
--> (http://llvm.org/bugs/attachment.cgi?id=3183)
example
hi,
while migrating my program that utilizes the llvm toolchain from version 2.3 to
2.5, opt introduces a optimization of GEPs that seems to be target-dependent,
but neither the target is specified in the IR nor on the command-line nor does
it match the pointer-size of the current platform.
I'm using the precompiled "LLVM Binaries for Mingw32/x86" on 32-bit Windows.
As an example I've attached the source IR and the optimized version with and
without a target datalayout.
best regards
tobias
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