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7c40b1a7bc
The global-merge pass was crashing because it assumes that all ConstantExprs (reached via the global variables that they use) have at least one user. I haven't worked out a way to test this, as an unused ConstantExpr cannot be represented by serialised IR, and global-merge can only be run in llc, which does not run any passes which can make a ConstantExpr dead. This (reduced to the point of silliness) C code triggers this bug when compiled for arm-none-eabi at -O1: static a = 7; static volatile b[10] = {&a}; c; main() { c = 0; for (; c < 10;) printf(b[c]); } Differential Revision: http://reviews.llvm.org/D10314 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239308 91177308-0d34-0410-b5e6-96231b3b80d8 |
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Analysis | ||
AsmParser | ||
Bitcode | ||
CodeGen | ||
DebugInfo | ||
ExecutionEngine | ||
Fuzzer | ||
IR | ||
IRReader | ||
LineEditor | ||
Linker | ||
LTO | ||
MC | ||
Object | ||
Option | ||
Passes | ||
ProfileData | ||
Support | ||
TableGen | ||
Target | ||
Transforms | ||
CMakeLists.txt | ||
LLVMBuild.txt | ||
Makefile |