[llvm] r272295 - [NVPTX] Mark bar.sync intrinsic as convergent.

[Justin Lebar via llvm-commits]

Author: jlebar
Date: Thu Jun  9 14:49:26 2016
New Revision: 272295

URL: http://llvm.org/viewvc/llvm-project?rev=272295&view=rev
Log:
[NVPTX] Mark bar.sync intrinsic as convergent.

Summary:
__syncthreads, which corresponds to bar.sync 0, is already convergent.
This makes the more general bar.sync n likewise convergent.

Reviewers: tra

Subscribers: llvm-commits, jholewinski

Differential Revision: http://reviews.llvm.org/D21161

Modified:
    llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td

Modified: llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td?rev=272295&r1=272294&r2=272295&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td (original)
+++ llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td Thu Jun  9 14:49:26 2016
@@ -3744,5 +3744,5 @@ def int_ptx_read_pm2         : PTXReadSp
 def int_ptx_read_pm3         : PTXReadSpecialRegisterIntrinsic_r32
                                <"__builtin_ptx_read_pm3">;
 
-def int_ptx_bar_sync : Intrinsic<[], [llvm_i32_ty], []>,
+def int_ptx_bar_sync : Intrinsic<[], [llvm_i32_ty], [IntrConvergent]>,
                        GCCBuiltin<"__builtin_ptx_bar_sync">;