commit f7bf6de0afc88a919742f8131210526fef3fb19a
author Craig Topper <craig.topper@gmail.com> Fri Jul 08 06:14:47 2016 +0000
committer Craig Topper <craig.topper@gmail.com> Fri Jul 08 06:14:47 2016 +0000
tree b34afb63f24c955e9d9aa4292c65343abfebcc7f
parent 4f826b7ae519c495e1070e19ccca664d43266827

[AVX512] Remove and autoupgrade a duplicate set of 512-bit masked shift intrinsics.

I'm not sure if clang ever used these builtin names or not.

llvm-svn: 274827

llvm/lib/IR/AutoUpgrade.cpp

diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
index 4686443..7e52bdb 100644
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -342,6 +342,23 @@
                                         Intrinsic::x86_xop_vfrcz_sd);
       return true;
     }
+    if (IsX86 && (Name.startswith("avx512.mask.pslli.") ||
+                  Name.startswith("avx512.mask.psrai.") ||
+                  Name.startswith("avx512.mask.psrli."))) {
+      F->setName("llvm.x86." + Name + ".old");
+      Intrinsic::ID ShiftID;
+      if (Name.slice(12, 16) == "psll")
+        ShiftID = Name[18] == 'd' ? Intrinsic::x86_avx512_mask_psll_di_512
+                                  : Intrinsic::x86_avx512_mask_psll_qi_512;
+      else if (Name.slice(12, 16) == "psra")
+        ShiftID = Name[18] == 'd' ? Intrinsic::x86_avx512_mask_psra_di_512
+                                  : Intrinsic::x86_avx512_mask_psra_qi_512;
+      else
+        ShiftID = Name[18] == 'd' ? Intrinsic::x86_avx512_mask_psrl_di_512
+                                  : Intrinsic::x86_avx512_mask_psrl_qi_512;
+      NewFn = Intrinsic::getDeclaration(F->getParent(), ShiftID);
+      return true;
+    }
     // Fix the FMA4 intrinsics to remove the 4
     if (IsX86 && Name.startswith("fma4.")) {
       F->setName("llvm.x86.fma" + Name.substr(5));
@@ -353,7 +370,7 @@
       auto Params = F->getFunctionType()->params();
       auto Idx = Params[2];
       if (Idx->getScalarType()->isFloatingPointTy()) {
-        F->setName(Name + ".old");
+        F->setName("llvm.x86." + Name + ".old");
         unsigned IdxSize = Idx->getPrimitiveSizeInBits();
         unsigned EltSize = Idx->getScalarSizeInBits();
         Intrinsic::ID Permil2ID;
@@ -1179,6 +1196,12 @@
   default:
     llvm_unreachable("Unknown function for CallInst upgrade.");
 
+  case Intrinsic::x86_avx512_mask_psll_di_512:
+  case Intrinsic::x86_avx512_mask_psra_di_512:
+  case Intrinsic::x86_avx512_mask_psrl_di_512:
+  case Intrinsic::x86_avx512_mask_psll_qi_512:
+  case Intrinsic::x86_avx512_mask_psra_qi_512:
+  case Intrinsic::x86_avx512_mask_psrl_qi_512:
   case Intrinsic::arm_neon_vld1:
   case Intrinsic::arm_neon_vld2:
   case Intrinsic::arm_neon_vld3: