Auto merge of #83030 - nikic:update-llvm, r=nagisa

Update llvm-project submodule Fixes #82833. Fixes #82859. Probably also `fixes` #83025. This also merges in the current upstream 12.x branch. r? `@nagisa`
rust-lang · Mar 12, 2021 · 215ebc3 · 215ebc3
2 parents 338647d + ef269ac
commit 215ebc3
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Showing 3 changed files with 37 additions and 1 deletion.
diff --git a/src/llvm-project b/src/llvm-project
diff --git a/src/test/ui/issues/issue-82833-slice-miscompile.rs b/src/test/ui/issues/issue-82833-slice-miscompile.rs
@@ -0,0 +1,17 @@
+// run-pass
+// compile-flags: -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Copt-level=0 -Cdebuginfo=2
+// ignore-tidy-linelength
+
+// Make sure LLVM does not miscompile this.
+
+fn make_string(ch: char) -> String {
+    let mut bytes = [0u8; 4];
+    ch.encode_utf8(&mut bytes).into()
+}
+
+fn main() {
+    let ch = '😃';
+    dbg!(ch);
+    let string = make_string(ch);
+    dbg!(string);
+}
diff --git a/src/test/ui/issues/issue-82859-slice-miscompile.rs b/src/test/ui/issues/issue-82859-slice-miscompile.rs
@@ -0,0 +1,19 @@
+// run-pass
+// compile-flags: -Copt-level=0 -Cdebuginfo=2
+
+// Make sure LLVM does not miscompile this.
+
+fn indirect_get_slice() -> &'static [usize] {
+    &[]
+}
+
+#[inline(always)]
+fn get_slice() -> &'static [usize] {
+    let ret = indirect_get_slice();
+    ret
+}
+
+fn main() {
+    let output = get_slice().len();
+    assert_eq!(output, 0);
+}
+10 −0		clang-tools-extra/docs/ReleaseNotes.rst
+3 −17		clang-tools-extra/docs/clang-tidy/checks/readability-deleted-default.rst
+41 −1		clang/docs/ReleaseNotes.rst
+2 −0		clang/docs/analyzer/checkers.rst
+1 −1		clang/lib/Frontend/InitPreprocessor.cpp
+2 −1		clang/test/Lexer/cxx-features.cpp
+7 −1		compiler-rt/lib/builtins/CMakeLists.txt
+0 −1		llvm/include/llvm/Analysis/AliasSetTracker.h
+4 −1		llvm/include/llvm/CodeGen/FastISel.h
+1 −0		llvm/lib/Analysis/AliasSetTracker.cpp
+11 −4		llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+7 −3		llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
+29 −0		llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+4 −3		llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
+6 −2		llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
+3 −10		llvm/lib/Transforms/Scalar/LICM.cpp
+23 −1		llvm/lib/Transforms/Utils/Local.cpp
+4 −0		llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h
+9 −2		llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+61 −1		llvm/test/CodeGen/AArch64/vecreduce-fmax-legalization.ll
+61 −1		llvm/test/CodeGen/AArch64/vecreduce-fmin-legalization.ll
+55 −0		llvm/test/CodeGen/X86/pr49393.ll
+27 −0		llvm/test/CodeGen/X86/pr49467.ll
+29 −15		llvm/test/CodeGen/X86/shift-double.ll
+38 −0		llvm/test/Transforms/InstCombine/select-imm-canon.ll
+34 −0		llvm/test/Transforms/LICM/promote-atomic.ll
+24 −24		llvm/test/Transforms/LoopVectorize/X86/masked_load_store.ll
+6 −6		llvm/test/Transforms/LoopVectorize/X86/x86-interleaved-accesses-masked-group.ll
+1 −1		llvm/test/Transforms/LoopVectorize/if-conversion-nest.ll
+1 −1		llvm/test/Transforms/LoopVectorize/if-pred-non-void.ll
+4 −4		llvm/test/Transforms/LoopVectorize/if-reduction.ll
+40 −0		llvm/test/Transforms/LoopVectorize/pr48832.ll
+2 −2		llvm/test/Transforms/LoopVectorize/reduction-inloop-pred.ll
+2 −2		llvm/test/Transforms/LoopVectorize/reduction-inloop.ll
+200 −0		llvm/test/Transforms/SimplifyCFG/poison-merge.ll
+1 −1		openmp/libomptarget/deviceRTLs/nvptx/CMakeLists.txt
+148 −0		openmp/libomptarget/test/offloading/bug49334.cpp
+5 −0		openmp/runtime/cmake/config-ix.cmake
+2 −1		openmp/runtime/src/kmp_tasking.cpp