rust/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp, branch 1.65.0

Rollup merge of #99207 - 5225225:msan-eager-checks, r=jackh726

2022-09-09T05:02:30+00:00

Enable eager checks for memory sanitizer Fixes #99179

llvm-wrapper: adapt for LLVM API changes

2022-09-07T13:37:59+00:00

No functional changes intended. Adapts PassWrapper for two recent LLVM API changes: * https://github.com/llvm/llvm-project/commit/e7bac3b9fa739f8d167a390a547068aad1d424a7 * https://github.com/llvm/llvm-project/commit/93600eb50ceeec83c488ded24fa0fd25f997fec6 * https://github.com/llvm/llvm-project/commit/5e38b2a456df6e263a509af60a731cec57310498

llvm-wrapper: use new pass manager for thin lto with LLVM version 15

2022-08-17T09:16:37+00:00

No functional changes intended. LLVM commit https://github.com/llvm/llvm-project/commit/633f5663c37a670e28040cadd938200abd854483 removed `createWriteThinLTOBitcodePass`. This adapts PassWrapper similarly to the example mentioned upstream: https://github.com/llvm/llvm-project/commit/633f5663c37a670e28040cadd938200abd854483.

Rollup merge of #100460 - cuviper:drop-llvm-12, r=nagisa

2022-08-16T04:05:57+00:00

Update the minimum external LLVM to 13 With this change, we'll have stable support for LLVM 13 through 15 (pending release). For reference, the previous increase to LLVM 12 was #90175. r? `@nagisa`

Update the minimum external LLVM to 13

2022-08-14T20:46:51+00:00

Enable eager checks for memory sanitizer

2022-08-14T09:37:03+00:00

Add support for generating unique *.profraw files by default when using the `-C instrument-coverage` flag.

2022-08-11T23:04:08+00:00

Respond to PR comments.

Remove dead code from cg_llvm

2022-07-26T11:29:18+00:00

Auto merge of #98162 - nextsilicon:support_lto_embed_bitcode, r=davidtwco

2022-07-21T10:13:59+00:00

Allow to disable thinLTO buffer to support lto-embed-bitcode lld feature Hello This change is to fix issue (https://github.com/rust-lang/rust/issues/84395) in which passing "-lto-embed-bitcode=optimized" to lld when linking rust code via linker-plugin-lto doesn't produce the expected result. Instead of emitting a single unified module into a llvmbc section of the linked elf, it emits multiple submodules. This is caused because rustc emits the BC modules after running llvm `createWriteThinLTOBitcodePass` pass. Which in turn triggers a thinLTO linkage and causes the said issue. This patch allows via compiler flag (-Cemit-thin-lto=) to select between running `createWriteThinLTOBitcodePass` and `createBitcodeWriterPass`. Note this pattern of selecting between those 2 passes is common inside of LLVM code. The default is to match the old behavior.

Auto merge of #95685 - oxidecomputer:restore-static-dwarf, r=pnkfelix

2022-07-16T00:18:54+00:00

Revert "Work around invalid DWARF bugs for fat LTO" Since September, the toolchain has not been generating reliable DWARF information for static variables when LTO is on. This has affected projects in the embedded space where the use of LTO is typical. In our case, it has kept us from bumping past the 2021-09-22 nightly toolchain lest our debugger break. This has been a pretty dramatic regression for people using debuggers and static variables. See #90357 for more info and a repro case. This commit is a mechanical revert of d5de680e20def848751cb3c11e1182408112b1d3 from PR #89041, which caused the issue. (Note on that PR that the commit's author has requested it be reverted.) I have locally verified that this fixes #90357 by restoring the functionality of both the repro case I posted on that bug, and debugger behavior on real programs. There do not appear to be test cases for this in the toolchain; if I've missed them, point me at 'em and I'll update them.