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* [WebAssembly] Disable MachineBlockPlacement passHeejin Ahn2019-03-051-20/+9
| | | | | | | | | | | | | | | | | Summary: This pass hurts code size for wasm and sometimes generates irreducible control flow. Context: https://github.com/emscripten-core/emscripten/pull/8233 Reviewers: kripken, dschuff Subscribers: sunfish, sbc100, jgravelle-google, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D58953 llvm-svn: 355437
* [WebAssembly] Emit a splat for v128 IMPLICIT_DEFThomas Lively2018-12-201-2/+2
| | | | | | | | | | | | | | Summary: This is a code size savings and is also important to get runnable code while engines do not support v128.const. Reviewers: aheejin, dschuff Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D55910 llvm-svn: 349724
* [WebAssembly] Handle vector IMPLICIT_DEFs.Thomas Lively2018-10-311-34/+117
| | | | | | | | | | | | | | Summary: Also reduce the test case for implicit defs and test it with all register classes. Reviewers: aheejin, dschuff Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D53855 llvm-svn: 345794
* [WebAssembly] Added default stack-only instruction mode for MC.Wouter van Oortmerssen2018-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | Summary: Made it convert from register to stack based instructions, and removed the registers. Fixes to related code that was expecting register based instructions. Added the correct testing flag to all tests, depending on what the format they were expecting so far. Translated one test to stack format as example: reg-stackify-stack.ll tested: llvm-lit -v `find test -name WebAssembly` unittests/MC/* Reviewers: dschuff, sunfish Subscribers: sbc100, jgravelle-google, eraman, aheejin, llvm-commits, jfb Differential Revision: https://reviews.llvm.org/D51241 llvm-svn: 340750
* Revert "[WebAssembly] Added default stack-only instruction mode for MC."Wouter van Oortmerssen2018-08-131-1/+1
| | | | | | This reverts commit 917a99b71ce21c975be7bfbf66f4040f965d9f3c. llvm-svn: 339630
* [WebAssembly] Added default stack-only instruction mode for MC.Wouter van Oortmerssen2018-08-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Summary: Moved Explicit Locals pass to last. Made that pass obligatory. Made it convert from register to stack based instructions, and removed the registers. Fixes to related code that was expecting register based instructions. Added the correct testing flag to all tests, depending on what the format they were expecting so far. Translated one test to stack format as example: reg-stackify-stack.ll tested: llvm-lit -v `find test -name WebAssembly` unittests/MC/* Reviewers: dschuff, sunfish Subscribers: jfb, llvm-commits, aheejin, eraman, jgravelle-google, sbc100 Differential Revision: https://reviews.llvm.org/D50568 llvm-svn: 339474
* Revert "[WebAssembly] Added default stack-only instruction mode for MC."Wouter van Oortmerssen2018-07-271-1/+1
| | | | | | | This reverts commit d3c9af4179eae7793d1487d652e2d4e23844555f. (SVN revision 338164) llvm-svn: 338176
* [WebAssembly] Added default stack-only instruction mode for MC.Wouter van Oortmerssen2018-07-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Summary: Moved Explicit Locals pass to last. Made that pass obligatory. Made it convert from register to stack based instructions, and removed the registers. Fixes to related code that was expecting register based instructions. Added the correct testing flag to all tests, depending on what the format they were expecting so far. Translated one test to stack format as example: reg-stackify-stack.ll tested: llvm-lit -v `find test -name WebAssembly` unittests/MC/* Reviewers: dschuff, sunfish Subscribers: sbc100, jgravelle-google, eraman, aheejin, llvm-commits Differential Revision: https://reviews.llvm.org/D49160 llvm-svn: 338164
* [WebAsembly] Update default triple in test files to wasm32-unknown-unkown.Sam Clegg2018-05-101-1/+1
| | | | | | | | | | Summary: The final -wasm component has been the default for some time now. Subscribers: jfb, dschuff, jgravelle-google, eraman, aheejin, JDevlieghere, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D46342 llvm-svn: 332007
* [WebAssembly] Switch to *-wasm as the default target triple.Dan Gohman2018-01-231-1/+1
| | | | | | | | This makes wasm32-unknown-unknown-wasm the default, which supports the .o file writer and the new linking ABI. To enable s2wasm-compatible output, use the wasm32-unknown-unknown-elf triple. llvm-svn: 323220
* [WebAssembly] Basic support for Wasm object file encoding.Dan Gohman2017-02-241-1/+1
| | | | | | | | | With the "wasm32-unknown-unknown-wasm" triple, this allows writing out simple wasm object files, and is another step in a larger series toward migrating from ELF to general wasm object support. Note that this code and the binary format itself is still experimental. llvm-svn: 296190
* [WebAssembly] Convert stackified IMPLICIT_DEF into constant 0.Dan Gohman2016-11-081-0/+50
Since IMPLIFIT_DEF instructions are omitted in the output, when the output of an IMPLICIT_DEF instruction is stackified, the resulting register lacks an explicit push, leading to a push/pop mismatch. Fix this by converting such IMPLICIT_DEFs into CONST_I32 0 instructions so that they have explicit pushes. llvm-svn: 286274
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