Express Registers_*::lastDwarfReg using _LIBUNWIND_HIGHEST_DWARF_REGISTER
This avoids having to keep the same information duplicated in multiple
places.
Adjust _LIBUNWIND_HIGHEST_DWARF_REGISTER to actually have the value
of the highest used register and only use the value
_LIBUNWIND_HIGHEST_DWARF_REGISTER + 1 (kMaxRegisterNumber + 1) for
allocating the savedRegisters array.
Differential Revision: https://reviews.llvm.org/D39281
llvm-svn: 316745
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 62dd9d20d5dc37bf5dfda14f40fd6c7013a24096
diff --git a/src/DwarfInstructions.hpp b/src/DwarfInstructions.hpp
index a428633..bd1448b 100644
--- a/src/DwarfInstructions.hpp
+++ b/src/DwarfInstructions.hpp
@@ -167,7 +167,7 @@
R newRegisters = registers;
pint_t returnAddress = 0;
const int lastReg = R::lastDwarfRegNum();
- assert((int)CFI_Parser<A>::kMaxRegisterNumber > lastReg &&
+ assert(static_cast<int>(CFI_Parser<A>::kMaxRegisterNumber) >= lastReg &&
"register range too large");
assert(lastReg >= (int)cieInfo.returnAddressRegister &&
"register range does not contain return address register");