[LLVMbugs] [Bug 6503] New: ice: replaceAllUses of value with new value of different type!

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=6503

           Summary: ice: replaceAllUses of value with new value of
                    different type!
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: regehr at cs.utah.edu
                CC: llvmbugs at cs.uiuc.edu, chenyang at cs.utah.edu


Created an attachment (id=4394)
 --> (http://llvm.org/bugs/attachment.cgi?id=4394)
failure-inducing input

Seen on x86.

regehr at john-home:~/volatile/bugs/tmp274$ clang -v
clang version 1.1 (trunk)
Target: i386-pc-linux-gnu
Thread model: posix

regehr at john-home:~/volatile/bugs/tmp274$ clang -O2 small.c

clang: Value.cpp:317: void llvm::Value::replaceAllUsesWith(llvm::Value*):
Assertion `New->getType() == getType() && "replaceAllUses of value with new
value of different type!"' failed.
0  clang 0x08edbe18
Stack dump:
0.    Program arguments:
/home/regehr/z/compiler-install/llvm-gcc-r97760-install/bin/clang -cc1 -triple
i386-pc-linux-gnu -S -disable-free -main-file-name small.c -mrelocation-model
static -mdisable-fp-elim -mconstructor-aliases -target-cpu pentium4
-resource-dir
/home/regehr/z/compiler-install/llvm-gcc-r97760-install/lib/clang/1.1 -O2
-fmessage-length 85 -fgnu-runtime -fdiagnostics-show-option -fcolor-diagnostics
-o /tmp/cc-mau7RF.s -x c small.c 
1.    <eof> parser at end of file
2.    Per-function optimization
3.    Running pass 'Combine redundant instructions' on function '@int327'
clang: error: compiler command failed due to signal 6 (use -v to see
invocation)

regehr at john-home:~/volatile/bugs/tmp274$ clang small.c -emit-llvm -S

regehr at john-home:~/volatile/bugs/tmp274$ opt -O2 small.s -o /dev/null

opt: Value.cpp:317: void llvm::Value::replaceAllUsesWith(llvm::Value*):
Assertion `New->getType() == getType() && "replaceAllUses of value with new
value of different type!"' failed.
0  opt 0x084aaae8
Stack dump:
0.    Program arguments: opt -O2 small.s -o /dev/null 
1.    Running pass 'Combine redundant instructions' on function '@int327'
Aborted

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