Commit Graph

14 Commits

Author SHA1 Message Date
Dan Gohman 7f1bdb2e02 [WebAssembly] Remove the output operand from stores.
Per spec changes, store instructions in WebAssembly no longer have a return
value. Update the instruction descriptions.

Differential Revision: https://reviews.llvm.org/D25122

llvm-svn: 283501
2016-10-06 22:08:28 +00:00
Dan Gohman b7c2400fa7 [WebAssembly] Optimize away return instructions using fallthroughs.
This saves a small amount of code size, and is a first small step toward
passing values on the stack across block boundaries.

Differential Review: http://reviews.llvm.org/D20450

llvm-svn: 270294
2016-05-21 00:21:56 +00:00
Dan Gohman 7100809080 [WebAssembly] Rename $discard to $drop in the assembly output.
llvm-svn: 269862
2016-05-17 23:19:03 +00:00
Dan Gohman 0c6e316e89 [WebAssembly] Fix a test to work even when the integrated assembler is enabled.
Add -no-integrated-as to this test, since it's testing inline asm strings
that aren't actually valid assembly syntax.

llvm-svn: 257519
2016-01-12 21:01:30 +00:00
Dan Gohman 0c6f5ac50a [WebAssembly] Add -m:e to the target triple.
This enables ELF-style name mangling, which primarily means using ".L" for
private symbols.

llvm-svn: 257020
2016-01-07 03:19:23 +00:00
Dan Gohman e2831b4e27 [WebAssembly] Use the new offset syntax for memory operands in inline asm.
llvm-svn: 255788
2015-12-16 18:14:49 +00:00
Dan Gohman 30a42bf585 [WebAssembly] Support more kinds of inline asm operands
llvm-svn: 255782
2015-12-16 17:15:17 +00:00
Dan Gohman 28818d7840 [WebAssembly] Tighten up several CHECK tests.
llvm-svn: 255255
2015-12-10 14:52:34 +00:00
Dan Gohman 284384b640 [WebAssembly] Support inline asm constraints of type i16 and similar.
llvm-svn: 254861
2015-12-05 20:03:44 +00:00
Dan Gohman a774d719a0 [WebAssembly] Fix inline asm support for i64 operands.
llvm-svn: 254106
2015-11-25 22:28:50 +00:00
Dan Gohman 53828fd777 [WebAssembly] Emit .param, .result, and .local through MC.
This eliminates one of the main remaining uses of EmitRawText.

llvm-svn: 253878
2015-11-23 16:50:18 +00:00
Dan Gohman 3d4a20662a [WebAssembly] Make bogus inline asm strings in tests be comments.
These tests aren't testing that the result is valid syntax; they're testing
that the compiler emits the inline asm operands correctly.

llvm-svn: 253469
2015-11-18 16:28:58 +00:00
Dan Gohman 4ba4816b97 [WebAssembly] Enable register coloring and register stackifying.
This also takes the push/pop syntax another step forward, introducing stack
slot numbers to make it easier to see how expressions are connected. For
example, the value pushed in $push7 is popped in $pop7.

And, this begins an experiment with making get_local and set_local implicit
when an operation directly uses or defines a register. This greatly reduces
clutter. If this experiment succeeds, it may make sense to do this for
const instructions as well.

And, this introduces more special code for ARGUMENTS; hopefully this code
will soon be obviated by proper support for live-in virtual registers.

llvm-svn: 253465
2015-11-18 16:12:01 +00:00
Dan Gohman f19ed56288 [WebAssembly] Inline asm support.
llvm-svn: 252997
2015-11-13 01:42:29 +00:00