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2021-04-17Don't set `fast`(-math) for certain simd opsSimonas Kazlauskas-2/+4
`fast-math` implies things like functions not being able to accept as an argument or return as a result, say, `inf` which made these functions confusingly named or behaving incorrectly, depending on how you interpret it. Since the time when these intrinsics have been implemented the intrinsics user's (stdsimd) approach has changed significantly and so now it is required that these intrinsics operate normally rather than in "whatever" way. Fixes #84268
2021-04-03Manually set dso_local when its valid to do soSimonas Kazlauskas-0/+4
This should have no real effect in most cases, as e.g. `hidden` visibility already implies `dso_local` (or at least LLVM IR does not preserve the `dso_local` setting if the item is already `hidden`), but it should fix `-Crelocation-model=static` and improve codegen in executables. Note that this PR does not exhaustively port the logic in [clang]. Only the obviously correct portion and what is necessary to fix a regression from LLVM 12 that relates to `-Crelocation_model=static`. Fixes #83335 [clang]: https://github.com/llvm/llvm-project/blob/3001d080c813da20b329303bf8f45451480e5905/clang/lib/CodeGen/CodeGenModule.cpp#L945-L1039
2021-03-25Auto merge of #83387 - cuviper:min-llvm-10, r=nagisabors-38/+0
Update the minimum external LLVM to 10 r? `@nikic`
2021-03-22cleanup: add some comments per review feedbackAugie Fackler-0/+3
2021-03-22Update the minimum external LLVM to 10Josh Stone-38/+0
2021-03-19fix: I meant LLVM version 13, not 12Augie Fackler-1/+1
2021-03-16llvm-wrapper: add alignment argument to CreateAtomicCmpXchgAugie Fackler-0/+6
As far as I can tell what we've been getting is llvm::MaybeAlign(), so just use that for now. This is required sometime after 24539f1ef2471d07bd87f833cb0288fc0f251f4b.
2021-03-01Mark pure asm as willreturnNikita Popov-0/+2
2021-02-28Support LLVM 12 in rustcNikita Popov-4/+49
2021-02-07HWASan supportTri Vo-0/+2
2021-02-02Add a new ABI to support cmse_nonsecure_callHugues de Valon-0/+8
This commit adds a new ABI to be selected via `extern "C-cmse-nonsecure-call"` on function pointers in order for the compiler to apply the corresponding cmse_nonsecure_call callsite attribute. For Armv8-M targets supporting TrustZone-M, this will perform a non-secure function call by saving, clearing and calling a non-secure function pointer using the BLXNS instruction. See the page on the unstable book for details. Signed-off-by: Hugues de Valon <hugues.devalon@arm.com>
2021-01-14Use probe-stack=inline-asm in LLVM 11+Erik Desjardins-0/+2
2021-01-13Remove the unused context from CreateDebugLocationJosh Stone-4/+2
This went unused in commit 88d874de6395, part of #68965.
2020-12-16llvm: update ffi bindings for split dwarfDavid Wood-2/+3
This commit modifies the FFI bindings to LLVM required for Split DWARF support in rustc. In particular: - `addPassesToEmitFile`'s wrapper, `LLVMRustWriteOutputFile` now takes a `DwoPath` `const char*`. When disabled, `nullptr` should be provided which will preserve existing behaviour. When enabled, the path to the `.dwo` file should be provided. - `createCompileUnit`'s wrapper, `LLVMRustDIBuilderCreateCompileUnit` now has two additional arguments, for the `DWOId` and to enable `SplitDebugInlining`. `DWOId` should always be zero. - `createTargetMachine`'s wrapper, `LLVMRustCreateTargetMachine` has an additional argument which should be provided the path to the `.dwo` when enabled. Signed-off-by: David Wood <david@davidtw.co>
2020-11-23Upgrades the coverage map to Version 4Rich Kadel-1/+1
Changes the coverage map injected into binaries compiled with `-Zinstrument-coverage` to LLVM Coverage Mapping Format, Version 4 (from Version 3). Note, binaries compiled with this version will require LLVM tools from at least LLVM Version 11.
2020-11-12fully exploited the dropped support of LLVM 8DevJPM-16/+0
This commit grepped for LLVM_VERSION_GE, LLVM_VERSION_LT, get_major_version and min-llvm-version and statically evaluated every expression possible (and sensible) assuming that the LLVM version is >=9 now
2020-11-03Rollup merge of #77950 - arlosi:sha256, r=eddybMara Bos-0/+5
Add support for SHA256 source file hashing Adds support for `-Z src-hash-algorithm sha256`, which became available in LLVM 11. Using an older version of LLVM will cause an error `invalid checksum kind` if the hash algorithm is set to sha256. r? `@eddyb` cc #70401 `@est31`
2020-11-01Auto merge of #78531 - cuviper:unwrap-metadata, r=tmandrybors-1/+1
rustc_llvm: unwrap LLVMMetadataRef before casting Directly casting the opaque pointer was [reported] to cause an "incomplete type" error with GCC 9.3: ``` llvm-wrapper/RustWrapper.cpp:939:31: required from here /usr/include/c++/9.3/type_traits:1301:12: error: invalid use of incomplete type 'struct LLVMOpaqueMetadata' 1301 | struct is_base_of | ^~~~~~~~~~ In file included from [...]/rust/src/llvm-project/llvm/include/llvm-c/BitReader.h:23, from llvm-wrapper/LLVMWrapper.h:1, from llvm-wrapper/RustWrapper.cpp:1: [...]/rust/src/llvm-project/llvm/include/llvm-c/Types.h:89:16: note: forward declaration of 'struct LLVMOpaqueMetadata' 89 | typedef struct LLVMOpaqueMetadata *LLVMMetadataRef; | ^~~~~~~~~~~~~~~~~~ ``` [reported]: https://zulip-archive.rust-lang.org/182449tcompilerhelp/12215halprustcllvmbuildfail.html#214915124 A simple `unwrap` fixes the issue. r? `@eddyb`
2020-10-29rustc_llvm: unwrap LLVMMetadataRef before castingJosh Stone-1/+1
Directly casting the opaque pointer was [reported] to cause an "incomplete type" error with GCC 9.3: ``` llvm-wrapper/RustWrapper.cpp:939:31: required from here /usr/include/c++/9.3/type_traits:1301:12: error: invalid use of incomplete type 'struct LLVMOpaqueMetadata' 1301 | struct is_base_of | ^~~~~~~~~~ In file included from [...]/rust/src/llvm-project/llvm/include/llvm-c/BitReader.h:23, from llvm-wrapper/LLVMWrapper.h:1, from llvm-wrapper/RustWrapper.cpp:1: [...]/rust/src/llvm-project/llvm/include/llvm-c/Types.h:89:16: note: forward declaration of 'struct LLVMOpaqueMetadata' 89 | typedef struct LLVMOpaqueMetadata *LLVMMetadataRef; | ^~~~~~~~~~~~~~~~~~ ``` [reported]: https://zulip-archive.rust-lang.org/182449tcompilerhelp/12215halprustcllvmbuildfail.html#214915124 A simple `unwrap` fixes the issue.
2020-10-29Rollup merge of #78462 - danielframpton:fixnullisa, r=nagisaJonas Schievink-1/+1
Use unwrapDIPtr because the Scope may be null. I ran into an assertion when using debug information on Windows with LLVM assertions enabled. It seems like we are using unwrap here (which in turn calls isa and requires the pointer to be non-null) but we expect the value to be null because that is what we are passing from rustc. This change uses unwrapDIPtr which explicitly allows nullptr. The FFI prototype for this method on the rust side has the `LLVMMetadataRef` parameter as `Scope: Option<&'a DIScope>`, and we always pass `None` when `msvc_like_names` is true.
2020-10-27Use unwrapDIPtr because the Scope may be passed as NoneDaniel Frampton-1/+1
2020-10-21rustc_codegen_llvm: avoid converting between DILocation and Value.Eduard-Mihai Burtescu-4/+4
2020-10-21rustc_codegen_llvm: move DISubprogram creation to a dbg_scope_fn method.Eduard-Mihai Burtescu-2/+3
2020-10-14Add support for SHA256 source file hashing for LLVM 11+.Arlo Siemsen-0/+5
2020-09-30Update LLVM and add Unsupported diagnosticHugues de Valon-0/+3
Secure entry functions do not support if arguments are passed on the stack. An "unsupported" diagnostic will be emitted by LLVM if that is the case. This commits adds support in Rust for that diagnostic so that an error will be output if that is the case! Signed-off-by: Hugues de Valon <hugues.devalon@arm.com>
2020-09-09Move `rustllvm` into `rustc_llvm`Vadim Petrochenkov-0/+1721
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