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SPARC and IA64 backend: assertion fails when compiling switch-case #1775

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llvmbot opened this issue May 9, 2007 · 4 comments
Closed

SPARC and IA64 backend: assertion fails when compiling switch-case #1775

llvmbot opened this issue May 9, 2007 · 4 comments
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@llvmbot
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llvmbot commented May 9, 2007

Bugzilla Link 1403
Resolution FIXED
Resolved on Feb 22, 2010 12:49
Version unspecified
OS Linux
Attachments testcase to reproduce the assertion, llc debug output
Reporter LLVM Bugzilla Contributor
CC @asl

Extended Description

The following assertion fails with 2.0 CVS branch when compiling a simple
switch-case with four cases. At least IA64 and Sparc backends are affected.
Compiles fine with x86 and PPC backends.

llc: SelectionDAGISel.cpp:1626: bool
llvm::SelectionDAGLowering::handleBTSplitSwitchCase(llvm::SelectionDAGLowering::CaseRec&,
std::vector<llvm::SelectionDAGLowering::CaseRec,
std::allocatorllvm::SelectionDAGLowering::CaseRec >&, llvm::Value*,
llvm::MachineBasicBlock*): Assertion `(FMetric > 0) && "Should handle dense
range earlier!"' failed.
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llvmbot commented May 9, 2007

assigned to @asl

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asl commented May 9, 2007

Mine

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asl commented May 9, 2007

I suppose, the problem is that there are no jump tables on these systems, am I
right?

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asl commented May 9, 2007

Fixed with:

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049462.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049463.html

Thanks!

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