Commit Graph

7 Commits

Author SHA1 Message Date
Thomas Lively ca9ba76481 [WebAssembly] Replace all calls with generalized multivalue calls
Summary:
Extends the multivalue call infrastructure to tail calls, removes all
legacy calls specialized for particular result types, and removes the
CallIndirectFixup pass, since all indirect call arguments are now
fixed up directly in the post-insertion hook.

In order to keep supporting pretty-printed defs and uses in test
expectations, MCInstLower now inserts an immediate containing the
number of defs for each call and call_indirect. The InstPrinter is
updated to query this immediate if it is present and determine which
MCOperands are defs and uses accordingly.

Depends on D72902.

Reviewers: aheejin

Subscribers: dschuff, mgorny, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74192
2020-02-18 15:55:20 -08:00
Krzysztof Parzyszek 43144ffa91 LiveIntervals: Split live intervals on multiple dead defs
This is a follow-up to D67448.

Split live intervals with multiple dead defs during the initial
execution of the live interval analysis, but do it outside of the
function createAndComputeVirtRegInterval.

Differential Revision: https://reviews.llvm.org/D68666
2019-10-30 08:50:46 -05:00
Thomas Lively 00f9e5aa76 [WebAssembly] Make returns variadic
Summary:
This is necessary and sufficient to get simple cases of multiple
return working with multivalue enabled. More complex cases will
require block and loop signatures to be generalized to potentially be
type indices as well.

Reviewers: aheejin, dschuff

Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68684

llvm-svn: 374235
2019-10-09 21:42:08 +00:00
Dmitri Gribenko 8a4595199a Revert "Fix test failures after r371640"
This reverts commit r371645, because r371640 was reverted.

llvm-svn: 371824
2019-09-13 08:26:59 +00:00
Matt Arsenault f5c3bb60b3 Fix test failures after r371640
r371640 evidently fixed bug 39481

llvm-svn: 371645
2019-09-11 18:55:20 +00:00
Thomas Lively a1d97a960e [WebAssembly] Implement tail calls and unify tablegen call classes
Summary:
Implements direct and indirect tail calls enabled by the 'tail-call'
feature in both DAG ISel and FastISel. Updates existing call tests and
adds new tests including a binary encoding test.

Reviewers: aheejin

Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62877

llvm-svn: 364445
2019-06-26 16:17:15 +00:00
Yury Delendik be24c02003 [WebAssembly] Fix updating/moving DBG_VALUEs in RegStackify
Summary:
As described in PR40209, there can be issues in DBG_VALUEs handling when multiple defs present in a BB. This patch
adds logic for detection of related to def DBG_VALUEs and localizes register update and movement to found DBG_VALUEs.

Reviewers: aheejin

Subscribers: mgorny, dschuff, sbc100, jgravelle-google, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D56401

llvm-svn: 351216
2019-01-15 18:14:12 +00:00