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AArch64: add support for llvm.aarch64.hint intrinsic

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This adds a llvm.aarch64.hint intrinsic to mirror the llvm.arm.hint in order to
support the various hint intrinsic functions in the ACLE.

Add an optional pattern field that permits the subclass to specify the pattern
that matches the selection.  The intrinsic pattern is set as mayLoad, mayStore,
so overload the value for the definition of the hint instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212883 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool
2014-07-12 21:20:49 +00:00
parent 1bbed94228
commit 01c06d7954
3 changed files with 89 additions and 11 deletions
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5
include/llvm/IR/IntrinsicsAArch64.td
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@@ -32,6 +32,11 @@ def int_aarch64_sdiv : Intrinsic<[llvm_anyint_ty], [LLVMMatchType<0>,
def int_aarch64_udiv : Intrinsic<[llvm_anyint_ty], [LLVMMatchType<0>,
LLVMMatchType<0>], [IntrNoMem]>;
//===----------------------------------------------------------------------===//
// HINT
def int_aarch64_hint : Intrinsic<[], [llvm_i32_ty]>;
//===----------------------------------------------------------------------===//
// RBIT