[LLVMbugs] [Bug 22342] New: Assertion `StringIndexMap.count(s) && "String is not in table!"' failed.

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Jan 26 20:09:15 PST 2015


            Bug ID: 22342
           Summary: Assertion `StringIndexMap.count(s) && "String is not
                    in table!"' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: kamatsuka.shun at jp.fujitsu.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 13739
  --> http://llvm.org/bugs/attachment.cgi?id=13739&action=edit
Obtained by clang -O0 -S -save-temps


Clang fails to compile the attached code, which includes a function whose
section and name is the same, and specified as an alias. 

void sub1(void) __attribute__(( section("sub1"), alias("sub2") ));
void sub2(void) { return; }

% clang ./section.c -O0 -c
clang: /home/kama/llvm/include/llvm/MC/StringTableBuilder.h:53: size_t
llvm::StringTableBuilder::getOffset(llvm::StringRef): Assertion
`StringIndexMap.count(s) && "String is not in table!"' failed.

Clang is able to emit an assembler file, but fails to emit an object while gcc
Adding to this, there is a difference in assembler files of gcc and clang.
The section of function b code is in .section a by clang and .text by gcc.

I don'n know which section is correct, but at least the assertion must be

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