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crash compiling inline asm #1421

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asl opened this issue Dec 15, 2006 · 4 comments
Closed

crash compiling inline asm #1421

asl opened this issue Dec 15, 2006 · 4 comments
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@lattner
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bugzilla Issues migrated from bugzilla compile-fail Use [accepts-invalid] and [rejects-valid] instead llvm:codegen

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@asl
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asl commented Dec 15, 2006

Bugzilla Link 1049
Resolution FIXED
Resolved on Feb 22, 2010 12:50
Version 1.8
OS Linux
Blocks #1234
Attachments Failed bytecode

Extended Description

Qt-compiling series is continuing...

Attached bytecode forces llc to crash with assertion:

./llc bugpoint-reduced-simplified.bc
llc: /home/asl/proj/llvm/src/include/llvm/Support/Casting.h:199: typename
llvm::cast_retty<To, From>::ret_type llvm::cast(const Y&) [with X =
llvm::ConstantSDNode, Y = llvm::SDOperand]: Assertion `isa(Val) &&
"cast() argument of incompatible type!"' failed.
./llc((anonymous namespace)::PrintStackTrace()+0x1f)[0x85a8cef]
/lib/libc.so.6(abort+0xeb)[0xb7d6d133]
/lib/libc.so.6(__assert_fail+0xeb)[0xb7d654f3]
./llc(llvm::ScheduleDAG::EmitNode(llvm::SDNode*, std::map<llvm::SDNode*,
unsigned int, std::lessllvm::SDNode*, std::allocator<std::pair<llvm::SDNode*
const, unsigned int> > >&)+0x1079)[0x840dcd9]
@asl
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asl commented Dec 15, 2006

assigned to @lattner

@lattner
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lattner commented Dec 16, 2006

This looks like an inline asm bug.

@lattner
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lattner commented Dec 16, 2006

Fixed. This was a subtle nasty bug with a simple fix. Patch here:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20061211/041497.html

Testcase here:
CodeGen/Generic/2006-12-16-InlineAsmCrash.ll

Thanks!

-Chris

@asl
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asl commented Nov 27, 2021

mentioned in issue #1234

@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 3, 2021
This issue was closed.
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bugzilla Issues migrated from bugzilla compile-fail Use [accepts-invalid] and [rejects-valid] instead llvm:codegen
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