commit d31327d50562e8f15035f8b4781241e0dc3be92b
author Elena Demikhovsky <elena.demikhovsky@intel.com> Sun May 13 07:45:58 2018 +0000
committer Elena Demikhovsky <elena.demikhovsky@intel.com> Sun May 13 07:45:58 2018 +0000
tree 8ef7737fc0f1f7d5a4e05400daefa2eb84560a15
parent 71540f51976302a702eb6fee58a6088661fac8c5

Added atomic_fetch_min, max, umin, umax intrinsics to clang.

These intrinsics work exactly as all other atomic_fetch_* intrinsics and allow to create *atomicrmw* with ordering.
Updated the clang-extensions document.

Differential Revision: https://reviews.llvm.org/D46386

llvm-svn: 332193

clang/lib/CodeGen/CGAtomic.cpp

diff --git a/clang/lib/CodeGen/CGAtomic.cpp b/clang/lib/CodeGen/CGAtomic.cpp
index f526eb4..b34bcdc 100644
--- a/clang/lib/CodeGen/CGAtomic.cpp
+++ b/clang/lib/CodeGen/CGAtomic.cpp
@@ -591,11 +591,13 @@
     break;
 
   case AtomicExpr::AO__opencl_atomic_fetch_min:
+  case AtomicExpr::AO__atomic_fetch_min:
     Op = E->getValueType()->isSignedIntegerType() ? llvm::AtomicRMWInst::Min
                                                   : llvm::AtomicRMWInst::UMin;
     break;
 
   case AtomicExpr::AO__opencl_atomic_fetch_max:
+  case AtomicExpr::AO__atomic_fetch_max:
     Op = E->getValueType()->isSignedIntegerType() ? llvm::AtomicRMWInst::Max
                                                   : llvm::AtomicRMWInst::UMax;
     break;
@@ -859,6 +861,8 @@
   case AtomicExpr::AO__atomic_or_fetch:
   case AtomicExpr::AO__atomic_xor_fetch:
   case AtomicExpr::AO__atomic_nand_fetch:
+  case AtomicExpr::AO__atomic_fetch_min:
+  case AtomicExpr::AO__atomic_fetch_max:
     Val1 = EmitValToTemp(*this, E->getVal1());
     break;
   }
@@ -913,6 +917,8 @@
     case AtomicExpr::AO__atomic_or_fetch:
     case AtomicExpr::AO__atomic_sub_fetch:
     case AtomicExpr::AO__atomic_xor_fetch:
+    case AtomicExpr::AO__atomic_fetch_min:
+    case AtomicExpr::AO__atomic_fetch_max:
       // For these, only library calls for certain sizes exist.
       UseOptimizedLibcall = true;
       break;
@@ -1095,6 +1101,7 @@
       AddDirectArgument(*this, Args, UseOptimizedLibcall, Val1.getPointer(),
                         MemTy, E->getExprLoc(), sizeChars);
       break;
+    case AtomicExpr::AO__atomic_fetch_min:
     case AtomicExpr::AO__opencl_atomic_fetch_min:
       LibCallName = E->getValueType()->isSignedIntegerType()
                         ? "__atomic_fetch_min"
@@ -1102,6 +1109,7 @@
       AddDirectArgument(*this, Args, UseOptimizedLibcall, Val1.getPointer(),
                         LoweredMemTy, E->getExprLoc(), sizeChars);
       break;
+    case AtomicExpr::AO__atomic_fetch_max:
     case AtomicExpr::AO__opencl_atomic_fetch_max:
       LibCallName = E->getValueType()->isSignedIntegerType()
                         ? "__atomic_fetch_max"