[LLVMbugs] [Bug 21210] New: revision 219282 miscompiles clang/llvm

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Oct 8 07:42:20 PDT 2014


            Bug ID: 21210
           Summary: revision 219282 miscompiles clang/llvm
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: hjl.tools at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

clang with this checkin:

commit f8b5847bc420e40a9b7fbdd24cd9f946059345a9
Author: Gerolf Hoflehner <ghoflehner at apple.com>
Date:   Wed Oct 8 06:42:19 2014 +0000

    [InstCombine] re-commit r218721 with fix for pr21199

    The icmp-select-icmp optimization targets select-icmp.eq
    only. This is now ensured by testing the branch predicate
    explictly. This commit also includes the test case for pr21199.

    git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219282

miscompiles clang/llvm on Linux/x86 with:

Failing Tests (7): 
    Clang :: Parser/cxx-template-decl.cpp
    Clang :: SemaObjC/instancetype.m
    Clang :: SemaObjC/related-result-type-inference.m
    Clang :: SemaObjCXX/instancetype.mm
    Clang :: SemaTemplate/class-template-decl.cpp
    Clang :: SemaTemplate/friend-template.cpp
    LLVM :: CodeGen/R600/cvt_f32_ubyte.ll

and on Linux/x86-64 with

    LLVM :: CodeGen/R600/cvt_f32_ubyte.ll

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