Backport fixes to LLVM 4.0 ARM codegen bugs #42740
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arielb1
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alexcrichton
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@bors: r+ |
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📌 Commit 6d6ca10 has been approved by |
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I believe it's just the sha ref not existing, I think it should be rust-lang/llvm@5415ff0 |
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Yeah, clicking through to the llvm submodule difference shows github doesn't recognise something about the commits - rust-lang/llvm@ee545e1...12b268e (I believe the snapshots are generated on the fly and then cached and served out of a CDN for a while, not sure it'd make sense to generate AOT) |
So ARM had quite a few codegen bugs on LLVM 4.0 which are fixed on LLVM
trunk. This backports 5 of them:
r297871 - ARM: avoid clobbering register in v6 jump-table expansion.
- fixes rust-lang#42248
r294949 - [Thumb-1] TBB generation: spot redefinitions of index
r295816 - [ARM] Fix constant islands pass.
r300870 - [Thumb-1] Fix corner cases for compressed jump tables
r302650 - [IfConversion] Add missing check in
IfConversion/canFallThroughTo
- unblocks rust-lang#39409
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@bors r=alexcrichton |
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📌 Commit 207951b has been approved by |
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Backport fixes to LLVM 4.0 ARM codegen bugs So ARM had quite a few codegen bugs on LLVM 4.0 which are fixed on LLVM trunk. This backports 5 of them: r297871 - ARM: avoid clobbering register in v6 jump-table expansion. - fixes #42248 r294949 - [Thumb-1] TBB generation: spot redefinitions of index r295816 - [ARM] Fix constant islands pass. r300870 - [Thumb-1] Fix corner cases for compressed jump tables r302650 - [IfConversion] Add missing check in IfConversion/canFallThroughTo - unblocks #39409 r? @alexcrichton beta-nominating because this fixes regressions introduced by LLVM 4.0.
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☀️ Test successful - status-appveyor, status-travis |
This was referenced Jun 22, 2017
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[beta] backports - #42785 - #42740 - #42735 - #42728 - #42695 - #42659 - #42634 - #42566 I just unilaterally accepted all the non-accepted nominations. Everything picked cleanly. Still testing locally. cc @rust-lang/compiler r? @alexcrichton
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[beta] backports - #42785 - #42740 - #42735 - #42728 - #42695 - #42659 - #42634 - #42566 I just unilaterally accepted all the non-accepted nominations. Everything picked cleanly. Still testing locally. cc @rust-lang/compiler r? @alexcrichton
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So ARM had quite a few codegen bugs on LLVM 4.0 which are fixed on LLVM
trunk. This backports 5 of them:
r297871 - ARM: avoid clobbering register in v6 jump-table expansion.
- fixes #42248
r294949 - [Thumb-1] TBB generation: spot redefinitions of index
r295816 - [ARM] Fix constant islands pass.
r300870 - [Thumb-1] Fix corner cases for compressed jump tables
r302650 - [IfConversion] Add missing check in
IfConversion/canFallThroughTo
- unblocks #39409
r? @alexcrichton
beta-nominating because this fixes regressions introduced by LLVM 4.0.