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| author | Sumanth Gundapaneni <sgundapa@codeaurora.org> | 2017-10-18 18:07:07 +0000 |
|---|---|---|
| committer | Sumanth Gundapaneni <sgundapa@codeaurora.org> | 2017-10-18 18:07:07 +0000 |
| commit | 7a600d312f9920ecafebcc6ede242f2b6a66cd9d (patch) | |
| tree | b99842749409b5172f6a0957cb9805def7afb39e /test/CodeGen/Hexagon/builtin-expect.ll | |
| parent | a05cf7b27d896a8deba5a08559e95cdff3668c79 (diff) | |
[Hexagon] New HVX target features.
This patch lets the llvm tools handle the new HVX target features that
are added by frontend (clang). The target-features are of the form
"hvx-length64b" for 64 Byte HVX mode, "hvx-length128b" for 128 Byte mode HVX.
"hvx-double" is an alias to "hvx-length128b" and is soon will be deprecated.
The hvx version target feature is upgated form "+hvx" to "+hvxv{version_number}.
Eg: "+hvxv62"
For the correct HVX code generation, the user must use the following
target features.
For 64B mode: "+hvxv62" "+hvx-length64b"
For 128B mode: "+hvxv62" "+hvx-length128b"
Clang picks a default length if none is specified. If for some reason,
no hvx-length is specified to llvm, the compilation will bail out.
There is a corresponding clang patch.
Differential Revision: https://reviews.llvm.org/D38851
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316101 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Hexagon/builtin-expect.ll')
| -rw-r--r-- | test/CodeGen/Hexagon/builtin-expect.ll | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/test/CodeGen/Hexagon/builtin-expect.ll b/test/CodeGen/Hexagon/builtin-expect.ll index 9945da1782b..9fed28760ad 100644 --- a/test/CodeGen/Hexagon/builtin-expect.ll +++ b/test/CodeGen/Hexagon/builtin-expect.ll @@ -39,6 +39,6 @@ b14: ; preds = %b13, %b10 declare i32 @bar(i32) local_unnamed_addr #0 -attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvx,-hvx-double,-long-calls" } +attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b,-long-calls" } !0 = !{!"branch_weights", i32 1, i32 2000} |