http://llvm.org/bugs/show_bug.cgi?id=22207
Bug ID: 22207
Summary: Segfault/invalid free in llc for R600
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Unit test llvm.dev.src/test/CodeGen/R600/infinite-loop-evergreen.ll segfaults.
If a new llvm is built with the first llvm, then the same unit test segfaults
with a glibc invalid pointer error.
All builds are in Release mode.
Steps to reproduce the error:
1. Build LLVM r225260 and Clang r225247 into directory e.g. obj1
2. Build a new LLVM/Clang with the previously built compiler into e.g. obj2
3. obj1/bin/llc -march=r600 -mcpu=cypress
llvm.dev.src/test/CodeGen/R600/infinite-loop-evergreen.ll
4. obj2/bin/llc -march=r600 -mcpu=cypress
llvm.dev.src/test/CodeGen/R600/infinite-loop-evergreen.ll
Step 3 segfaults, Step 4 segfaults and shows the glibc error.
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