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getCopyRegToReg() does not support ST(1) as dest register #2627

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asl opened this issue Apr 28, 2008 · 4 comments
Closed

getCopyRegToReg() does not support ST(1) as dest register #2627

asl opened this issue Apr 28, 2008 · 4 comments
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backend:X86 bugzilla Issues migrated from bugzilla

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@asl
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asl commented Apr 28, 2008

Bugzilla Link 2255
Resolution FIXED
Resolved on Jan 01, 2010 12:45
Version trunk
OS Linux
Attachments Test bytecode
CC @edwintorok,@pwo

Extended Description

Consider attached testcase. I'm having:

llc: /home/asl/proj/llvm/src/lib/Target/X86/X86InstrInfo.cpp:1593: virtual void llvm::X86InstrInfo::copyRegToReg(llvm::MachineBasicBlock&, llvm::ilist_iteratorllvm::MachineInstr, unsigned int, unsigned int, const llvm::TargetRegisterClass*, const llvm::TargetRegisterClass*) const: Assertion `DestReg == X86::ST0 && "Can only copy to TOS right now"' failed.

This currently prevents mingw64 CRT bootstrap with llvm-gcc

@edwintorok
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edwintorok commented May 1, 2008

*** Bug llvm/llvm-bugzilla-archive#2269 has been marked as a duplicate of this bug. ***

@pwo
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pwo commented May 27, 2009

I can not reproduce this with r72485. Fixed ?

@lattner
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lattner commented Jan 1, 2010

Yep, looks fixed.

@edwintorok
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edwintorok commented Nov 26, 2021

mentioned in issue llvm/llvm-bugzilla-archive#2269

@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 3, 2021
This issue was closed.
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Labels
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