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author | Dimitry Andric <dim@FreeBSD.org> | 2016-01-16 17:57:54 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2016-01-16 17:57:54 +0000 |
commit | 5673a0f9182b84022657990fbb01ca6cf91cf94f (patch) | |
tree | 4dda31822cfd7a15653eb970741984eb54e02b62 /contrib | |
parent | 42d8074a701c411b0446ad3eaf0af17a66a8d654 (diff) | |
download | src-5673a0f9182b84022657990fbb01ca6cf91cf94f.tar.gz src-5673a0f9182b84022657990fbb01ca6cf91cf94f.zip |
Undo r289072, which reverted upstream llvm trunk r240144. This is going
to be fixed for real by importing upstream llvm trunk r257902.
Notes
Notes:
svn path=/projects/clang380-import/; revision=294175
Diffstat (limited to 'contrib')
-rw-r--r-- | contrib/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp | 6 | ||||
-rw-r--r-- | contrib/llvm/patches/patch-07-undo-llvm-r240144-iostream-sigbus.diff | 50 |
2 files changed, 4 insertions, 52 deletions
diff --git a/contrib/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/contrib/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp index 27d3337f1351..f69a4e52c7e1 100644 --- a/contrib/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp +++ b/contrib/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp @@ -1691,8 +1691,10 @@ bool BoUpSLP::isFullyVectorizableTinyTree() { if (VectorizableTree.size() != 2) return false; - // Handle splat stores. - if (!VectorizableTree[0].NeedToGather && isSplat(VectorizableTree[1].Scalars)) + // Handle splat and all-constants stores. + if (!VectorizableTree[0].NeedToGather && + (allConstant(VectorizableTree[1].Scalars) || + isSplat(VectorizableTree[1].Scalars))) return true; // Gathering cost would be too much for tiny trees. diff --git a/contrib/llvm/patches/patch-07-undo-llvm-r240144-iostream-sigbus.diff b/contrib/llvm/patches/patch-07-undo-llvm-r240144-iostream-sigbus.diff deleted file mode 100644 index da3e6b09a81e..000000000000 --- a/contrib/llvm/patches/patch-07-undo-llvm-r240144-iostream-sigbus.diff +++ /dev/null @@ -1,50 +0,0 @@ -Temporarily revert upstream llvm trunk r240144 (by Michael Zolotukhin): - - [SLP] Vectorize for all-constant entries. - -This should fix libc++'s iostream initialization SIGBUSing whenever the -global cout symbol is not aligned to 16 bytes. - -Introduced here: http://svnweb.freebsd.org/changeset/base/289072 - -Index: lib/Transforms/Vectorize/SLPVectorizer.cpp -=================================================================== ---- lib/Transforms/Vectorize/SLPVectorizer.cpp -+++ lib/Transforms/Vectorize/SLPVectorizer.cpp -@@ -1642,10 +1642,8 @@ bool BoUpSLP::isFullyVectorizableTinyTree() { - if (VectorizableTree.size() != 2) - return false; - -- // Handle splat and all-constants stores. -- if (!VectorizableTree[0].NeedToGather && -- (allConstant(VectorizableTree[1].Scalars) || -- isSplat(VectorizableTree[1].Scalars))) -+ // Handle splat stores. -+ if (!VectorizableTree[0].NeedToGather && isSplat(VectorizableTree[1].Scalars)) - return true; - - // Gathering cost would be too much for tiny trees. -Index: test/Transforms/SLPVectorizer/X86/tiny-tree.ll -=================================================================== ---- test/Transforms/SLPVectorizer/X86/tiny-tree.ll -+++ test/Transforms/SLPVectorizer/X86/tiny-tree.ll -@@ -153,19 +153,3 @@ define void @store_splat(float*, float) { - store float %1, float* %6, align 4 - ret void - } -- -- --; CHECK-LABEL: store_const --; CHECK: store <4 x i32> --define void @store_const(i32* %a) { --entry: -- %ptr0 = getelementptr inbounds i32, i32* %a, i64 0 -- store i32 10, i32* %ptr0, align 4 -- %ptr1 = getelementptr inbounds i32, i32* %a, i64 1 -- store i32 30, i32* %ptr1, align 4 -- %ptr2 = getelementptr inbounds i32, i32* %a, i64 2 -- store i32 20, i32* %ptr2, align 4 -- %ptr3 = getelementptr inbounds i32, i32* %a, i64 3 -- store i32 40, i32* %ptr3, align 4 -- ret void --} |