llvm-project.git/llvm/test/CodeGen/WebAssembly/stack-insts.ll, branch users/nico/python-2 Unnamed repository; edit this file 'description' to name the repository. [WebAssembly] Remove datalayout strings from llc tests 2021-07-14T18:17:08+00:00 Thomas Lively tlively@google.com 2021-07-14T18:17:08+00:00 122b0220fd45ee71acda912b0b712bb8edb6ba46 The data layout strings do not have any effect on llc tests and will become misleadingly out of date as we continue to update the canonical data layout, so remove them from the tests. Differential Revision: https://reviews.llvm.org/D105842 
The data layout strings do not have any effect on llc tests and will become
misleadingly out of date as we continue to update the canonical data layout, so
remove them from the tests.

Differential Revision: https://reviews.llvm.org/D105842
Reland "[WebAssembly] Eliminate range checks on br_tables" 2020-06-03T21:04:59+00:00 Thomas Lively tlively@google.com 2020-06-03T21:04:59+00:00 7f50c15be5c020b2789f83dc3c87d28f8294664f This reverts commit 755a89591528b692315ad0325347e2fd4637271b. Although I was not able to reproduce any test failures locally, aheejin was able to reproduce them and found a fix, applied here. 
This reverts commit 755a89591528b692315ad0325347e2fd4637271b.
Although I was not able to reproduce any test failures locally,
aheejin was able to reproduce them and found a fix, applied here.
Revert "[WebAssembly] Eliminate range checks on br_tables" 2020-06-03T08:26:53+00:00 Thomas Lively tlively@google.com 2020-06-03T08:26:53+00:00 755a89591528b692315ad0325347e2fd4637271b This reverts commit f99d5f8c32a822580a732d15a34e8197da55d22b. The change was causing UBSan and other failures on some bots. 
This reverts commit f99d5f8c32a822580a732d15a34e8197da55d22b.
The change was causing UBSan and other failures on some bots.
[WebAssembly] Eliminate range checks on br_tables 2020-06-02T20:14:27+00:00 Thomas Lively tlively@google.com 2020-06-02T20:14:27+00:00 f99d5f8c32a822580a732d15a34e8197da55d22b Summary: Jump tables for most targets cannot handle out of range indices by themselves, so LLVM emits range checks to guard the jump tables. WebAssembly, on the other hand, implements jump tables using the br_table instruction, which takes a default branch target as an operand, making the range checks redundant. This patch introduces a new MachineFunction pass in the WebAssembly backend to find and eliminate the redundant range checks. Reviewers: aheejin, dschuff Subscribers: mgorny, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D80863 
Summary:
Jump tables for most targets cannot handle out of range indices by
themselves, so LLVM emits range checks to guard the jump
tables. WebAssembly, on the other hand, implements jump tables using
the br_table instruction, which takes a default branch target as an
operand, making the range checks redundant. This patch introduces a
new MachineFunction pass in the WebAssembly backend to find and
eliminate the redundant range checks.

Reviewers: aheejin, dschuff

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

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D80863
[WebAssembly] Fix assembler parsing of br_table. 2018-12-17T22:04:44+00:00 Wouter van Oortmerssen aardappel@gmail.com 2018-12-17T22:04:44+00:00 d3c544aa6ec94aaf143a092cbd1058890863c7dc Summary: We use `variable_ops` in the tablegen defs to denote the list of branch targets in `br_table`, but unlike other uses of `variable_ops` (e.g. call) the these branch targets need to actually be encoded in the instruction. The existing tables for `variable_ops` cause not operands to be accepted by the assembly matcher. Following the example of ARM: https://github.com/llvm-mirror/llvm/blob/2cc0a7da876c1d8c32775b0119e1e15aaa759b9e/lib/Target/ARM/ARMInstrInfo.td#L550-L555 we introduce a new operand type to capture this list, and we use the same {} syntax as ARM as well to differentiate them from regular integer operands. Also removed definition and use of TSFlags in tablegen defs, since `br_table` now has a non-variable_ops immediate operand, so the previous logic of only the variable_ops arguments being labels didn't make sense anymore. Reviewers: dschuff, aheejin, sunfish Subscribers: javed.absar, sbc100, jgravelle-google, kristof.beyls, llvm-commits Differential Revision: https://reviews.llvm.org/D55401 llvm-svn: 349405 
Summary:
We use `variable_ops` in the tablegen defs to denote the list of
branch targets in `br_table`, but unlike other uses of `variable_ops`
(e.g. call) the these branch targets need to actually be encoded in the
instruction. The existing tables for `variable_ops` cause not operands
to be accepted by the assembly matcher.

Following the example of ARM:
https://github.com/llvm-mirror/llvm/blob/2cc0a7da876c1d8c32775b0119e1e15aaa759b9e/lib/Target/ARM/ARMInstrInfo.td#L550-L555
we introduce a new operand type to capture this list, and we use the
same {} syntax as ARM as well to differentiate them from regular
integer operands.

Also removed definition and use of TSFlags in tablegen defs, since
`br_table` now has a non-variable_ops immediate operand, so the
previous logic of only the variable_ops arguments being labels didn't
make sense anymore.

Reviewers: dschuff, aheejin, sunfish

Subscribers: javed.absar, sbc100, jgravelle-google, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D55401

llvm-svn: 349405
[WebAssembly] Fix assembly printing of br_table 2018-10-23T00:28:14+00:00 Heejin Ahn aheejin@gmail.com 2018-10-23T00:28:14+00:00 a40303aa0395822ab14a84d557ce0dff86261af6 Summary: In `br_table's stack version asm string, \t was missing. Reviewers: aardappel Subscribers: dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D53516 llvm-svn: 344981 
Summary: In `br_table's stack version asm string, \t was missing.

Reviewers: aardappel

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

Differential Revision: https://reviews.llvm.org/D53516

llvm-svn: 344981