Commit Graph

5 Commits

Author SHA1 Message Date
Kuba Mracek 5c393d2565 Get rid of some more "%T" expansions, see <https://reviews.llvm.org/D35396>.
llvm-svn: 311293
2017-08-20 17:00:08 +00:00
Rafael Espindola 9f92995781 Don't pass the code model to MC
I was surprised to see the code model being passed to MC. After all,
it assembles code, it doesn't create it.

The one place it is used is in the expansion of .cfi directives to
handle .eh_frame being more that 2gb away from the code.

As far as I can tell, gnu assembler doesn't even have an option to
enable this. Compiling a c file with gcc -mcmodel=large produces a
regular looking .eh_frame. This is probably because in practice linker
parse and recreate .eh_frames.

In llvm this is used because the JIT can place the code and .eh_frame
very far apart. Ideally we would fix the jit and delete this
option. This is hard.

Apart from confusion another problem with the current interface is
that most callers pass CodeModel::Default, which is bad since MC has
no way to map it to the target default if it actually needed to.

This patch then replaces the argument with a boolean with a default
value. The vast majority of users don't ever need to look at it. In
fact, only CodeGen and llvm-mc use it and llvm-mc just to enable more
testing.

llvm-svn: 309884
2017-08-02 20:32:26 +00:00
Sagar Thakur 672c710de4 [MIPS][LLVM-MC] Fix Disassemble of Negative Offset
Patch by Nitesh Jain.

Summary: The type of Imm in MipsDisassembler.cpp was incorrect since SignExtend64 return int64_t type.As per the MIPSr6 doc ,the offset is added to the address of the instruction following the branch (not the branch itself), to form a PC-relative effective target address hence “4” is added to the offset. The offset of some test case are update to reflect the changes due to “ + 4 ” offset and new test case for negative offset are added.

Reviewers: dsanders, vkalintiris
Differential Revision: http://reviews.llvm.org/D17540

llvm-svn: 270542
2016-05-24 09:57:10 +00:00
Rafael Espindola cdb2a15d9d Don't pass relocation-model= to tests that don't need it.
Very few things in MC itself use the option. Most of the code that that
uses it could be move to CodeGen.

llvm-svn: 269871
2016-05-18 00:27:17 +00:00
Petar Jovanovic 207a191a98 [mips64][mcjit] Add N64R6 relocations tests and fix N64R2 tests
This patch adds a test for MIPS64R6 relocations, it corrects check
expressions for R_MIPS_26 and R_MIPS_PC16 relocations in MIPS64R2 test, and
it adds run for big endian in MIPS64R2 test.

Patch by Vladimir Radosavljevic.

Differential Revision: http://reviews.llvm.org/D11217

llvm-svn: 246311
2015-08-28 18:02:53 +00:00