Commit Graph

6 Commits

Author SHA1 Message Date
Dan Gohman 3acb187d95 [WebAssembly] Implement more WebAssembly binary encoding.
This changes locals from being declared by the emitLocal hook in
WebAssemblyTargetStreamer, rather than with an instruction. After exploring
the infastructure in LLVM more, this seems to make more sense since
declaring locals doesn't use an encoded opcode.

This also adds more 0xd opcodes, type encodings, and miscellaneous
binary encoding bits.

llvm-svn: 285040
2016-10-24 23:27:49 +00:00
Nirav Dave 8603062ee4 Fix branch relaxation in 16-bit mode.
Thread through MCSubtargetInfo to relaxInstruction function allowing relaxation
to generate jumps with 16-bit sized immediates in 16-bit mode.

This fixes PR22097.

Reviewers: dwmw2, tstellarAMD, craig.topper, jyknight

Subscribers: jfb, arsenm, jyknight, llvm-commits, dsanders

Differential Revision: http://reviews.llvm.org/D20830

llvm-svn: 275068
2016-07-11 14:23:53 +00:00
Dan Gohman a39ca60126 [WebAssembly] Add an assertion to catch unexpected MCFixupKindInfo flags.
llvm-svn: 257657
2016-01-13 19:31:57 +00:00
Dan Gohman 938ff9f0aa [WebAssembly] MCFixupKindInfo's TargetSize is in bits rather than bytes.
llvm-svn: 257655
2016-01-13 19:29:37 +00:00
Dan Gohman cceedf79b4 [WebAssembly] Remove unused arguments, unused functions. NFC.
llvm-svn: 257125
2016-01-08 00:43:54 +00:00
Dan Gohman 05ac43fec3 [WebAssembly] Experimental ELF writer support
This creates the initial infrastructure for writing ELF output files. It
doesn't yet have any implementation for encoding instructions.

Differential Revision: http://reviews.llvm.org/D15555

llvm-svn: 255869
2015-12-17 01:39:00 +00:00