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[AMDGPU] Add convergent attribute to WWM. 

Add the convergent attribute to the WWM intrinsic to stop it ever being
sunk out of cfg.

Differential Revision: https://reviews.llvm.org/D59536

llvm-svn: 356470
This commit is contained in:
Neil Henning 2019-03-19 16:32:24 +00:00
parent 66158c00f9
commit 47c2bd2b34
1 changed files with 1 additions and 1 deletions
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2
llvm/include/llvm/IR/IntrinsicsAMDGPU.td
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@ -1361,7 +1361,7 @@ def int_amdgcn_kill : Intrinsic<[], [llvm_i1_ty], []>;
// enabled, with a few exceptions: - Phi nodes with require WWM return an
// undefined value.
def int_amdgcn_wwm : Intrinsic<[llvm_any_ty],
[LLVMMatchType<0>], [IntrNoMem, IntrSpeculatable]
[LLVMMatchType<0>], [IntrNoMem, IntrSpeculatable, IntrConvergent]
>;
// Given a value, copies it while setting all the inactive lanes to a given