Commit Graph

2 Commits

Author SHA1 Message Date
Craig Topper ad923edfc1 [RISCV] Add support for printing pcrel immediates as absolute addresses in llvm-objdump
This makes the llvm-objdump output much more readable and closer to binutils objdump. This builds on D76591

It requires changing the OperandType for certain immediates to "OPERAND_PCREL" so tablegen will generate code to pass the instruction's address. This means we can't do the generic check on these instructions in verifyInstruction any more. Should I add it back with explicit opcode checks? Or should we add a new operand flag to control the passing of address instead of matching the name?

Differential Revision: https://reviews.llvm.org/D92147
2020-12-04 10:34:12 -08:00
Simon Cook 2df6a02fd7 [RISCV] Implement evaluateBranch
This implements the instruction analysis required to print branch
targets as part of llvm-objdump's disassembly.

Note, this only handles those branches which can be analyzed in a single
instruction, a future patch will handle multiple-instruction patterns,
such as AUIPC/LUI+JALR instruction pairs.

Differential Revision: https://reviews.llvm.org/D77567
2020-04-09 15:11:55 +01:00