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* [WebAssembly] Fix miscompile of select with andThomas Lively2019-11-151-15/+60
| | | | | | | | | | | | | | | | | Summary: Rolls back the remaining bad optimizations introduced in eb15d00193f. Some of them were already rolled back in e661f946a7db and this finishes the job. Fixes https://bugs.llvm.org/show_bug.cgi?id=44012. Reviewers: dschuff, aheejin Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70347
* [WebAssembly] Fix select of and (PR40805)Nikita Popov2019-02-231-4/+21
| | | | | | | | | | | | | Fixes https://bugs.llvm.org/show_bug.cgi?id=40805 introduced by patterns added in D53676. I'm removing the patterns entirely here, as they are not correct in the general case. If necessary something more specific can be added in the future. Differential Revision: https://reviews.llvm.org/D58575 llvm-svn: 354733
* [WebAssembly] replaced .param/.result by .functypeWouter van Oortmerssen2018-11-191-32/+16
| | | | | | | | | | | | | | | | | | | | | Summary: This makes it easier/cleaner to generate a single signature from this directive. Also: - Adds the symbol name, such that we don't depend on the location of this directive anymore. - Actually constructs the signature in the assembler, and make the assembler own it. - Refactor the use of MVT vs ValType in the streamer and assembler to require less conversions overall. - Changed 700 or so tests to use it. Reviewers: sbc100, dschuff Subscribers: jgravelle-google, eraman, aheejin, sunfish, jfb, llvm-commits Differential Revision: https://reviews.llvm.org/D54652 llvm-svn: 347228
* [WebAssembly] Lower away condition truncations for scalar selectsThomas Lively2018-10-291-1/+41
| | | | | | | | | | Reviewers: aheejin, dschuff Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D53676 llvm-svn: 345521
* [WebAssembly] Added default stack-only instruction mode for MC.Wouter van Oortmerssen2018-08-271-2/+2
| | | | | | | | | | | | | | | | | | | | | 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 Oortmerssen2018-08-131-2/+2
| | | | | | This reverts commit 917a99b71ce21c975be7bfbf66f4040f965d9f3c. llvm-svn: 339630
* [WebAssembly] Added default stack-only instruction mode for MC.Wouter van Oortmerssen2018-08-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | 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 Oortmerssen2018-07-271-2/+2
| | | | | | | This reverts commit d3c9af4179eae7793d1487d652e2d4e23844555f. (SVN revision 338164) llvm-svn: 338176
* [WebAssembly] Added default stack-only instruction mode for MC.Wouter van Oortmerssen2018-07-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | 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] Convert the remaining unit tests to the new wasm-object-file ↵Dan Gohman2017-02-281-3/+3
| | | | | | | | | | | target. To facilitate this, add a new hidden command-line option to disable the explicit-locals pass. That causes llc to emit invalid code that doesn't have all locals converted to get_local/set_local, however it simplifies testwriting in many cases. llvm-svn: 296540
* [WebAssembly] Optimize away return instructions using fallthroughs.Dan Gohman2016-05-211-2/+2
| | | | | | | | | 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
* [WebAssembly] Fast-isel support for calls, arguments, and selects.Dan Gohman2016-05-121-1/+1
| | | | llvm-svn: 269273
* [WebAssembly] Update the select instructions' operand orders to match the spec.Dan Gohman2016-02-051-12/+12
| | | | llvm-svn: 259893
* [WebAssembly] Add -m:e to the target triple.Dan Gohman2016-01-071-1/+1
| | | | | | | This enables ELF-style name mangling, which primarily means using ".L" for private symbols. llvm-svn: 257020
* [WebAssembly] Fold setne and seteq comparisons into selects.Dan Gohman2015-11-251-34/+126
| | | | llvm-svn: 254104
* [WebAssembly] Suffix output operands with '='.Dan Gohman2015-11-231-8/+8
| | | | | | | | This distinguishes input operands from output operands. This is something of a syntactic experiment to see whether the mild amount of clutter this adds is outweighed by the extra information it conveys to the reader. llvm-svn: 253922
* [WebAssembly] Enable register coloring and register stackifying.Dan Gohman2015-11-181-12/+8
| | | | | | | | | | | | | | | | 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 $pop7. And, this begins an experiment with making get_local and set_local implicit when an operation directly uses or defines a register. This greatly reduces clutter. If this experiment succeeds, it may make sense to do this for const instructions as well. And, this introduces more special code for ARGUMENTS; hopefully this code will soon be obviated by proper support for live-in virtual registers. llvm-svn: 253465
* [WebAssembly] Make indentation consistent with the other testcases. NFC.Dan Gohman2015-11-141-12/+12
| | | | llvm-svn: 253149
* [WebAssembly] Reapply r252858, with svn add for the new file.Dan Gohman2015-11-121-28/+12
| | | | | | | | | | | | | | | | | | | | | | Switch to MC for instruction printing. This encompasses several changes which are all interconnected: - Use the MC framework for printing almost all instructions. - AsmStrings are now live. - This introduces an indirection between LLVM vregs and WebAssembly registers, and a new pass, WebAssemblyRegNumbering, for computing a basic the mapping. This addresses some basic issues with argument registers and unused registers. - The way ARGUMENT instructions are handled no longer generates redundant get_local+set_local for every argument. This also changes the assembly syntax somewhat; most notably, MC's printing does not use sigils on label names, so those are no longer present, and push/pop now have a sigil to keep them unambiguous. The usage of set_local/get_local/$push/$pop will continue to evolve significantly. This patch is just one step of a larger change. llvm-svn: 252910
* Revert r252858: "[WebAssembly] Switch to MC for instruction printing."Hans Wennborg2015-11-121-12/+28
| | | | | | | | It broke the CMake build: "Cannot find source file: WebAssemblyRegNumbering.cpp" llvm-svn: 252897
* [WebAssembly] Switch to MC for instruction printing.Dan Gohman2015-11-121-28/+12
| | | | | | | | | | | | | | | | | | | | This encompasses several changes which are all interconnected: - Use the MC framework for printing almost all instructions. - AsmStrings are now live. - This introduces an indirection between LLVM vregs and WebAssembly registers, and a new pass, WebAssemblyRegNumbering, for computing a basic the mapping. This addresses some basic issues with argument registers and unused registers. - The way ARGUMENT instructions are handled no longer generates redundant get_local+set_local for every argument. This also changes the assembly syntax somewhat; most notably, MC's printing use sigils on label names, so those are no longer present, and push/pop now have a sigil to keep them unambiguous. The usage of set_local/get_local/$push/$pop will continue to evolve significantly. This patch is just one step of a larger change. llvm-svn: 252858
* [WebAssembly] Add more explicit pushes to the tests.Dan Gohman2015-11-061-8/+8
| | | | llvm-svn: 252344
* [WebAssembly] Make expression-stack pushing explicitDan Gohman2015-11-061-8/+8
| | | | | | | | | Modelling of the expression stack is evolving. This patch takes another step by making pushes explicit. Differential Revision: http://reviews.llvm.org/D14338 llvm-svn: 252334
* Address nitDerek Schuff2015-11-031-32/+32
| | | | llvm-svn: 252004
* [WebAssembly] Support wasm select operatorDerek Schuff2015-11-031-0/+63
Summary: Add support for wasm's select operator, and lower LLVM's select DAG node to it. Reviewers: sunfish Subscribers: dschuff, llvm-commits, jfb Differential Revision: http://reviews.llvm.org/D14295 llvm-svn: 252002
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