commit 823e2a670a9da8e5cd8beed108355a168ca1a23b
author Sander de Smalen <sander.desmalen@arm.com> Fri Apr 24 11:31:34 2020 +0100
committer Sander de Smalen <sander.desmalen@arm.com> Fri Apr 24 11:35:59 2020 +0100
tree c2731a8542c5955ae34e90fd642291af2ad72ab6
parent 9cd4debd5ae43b03c96a2f8f24c73c5fd317d8ac

[SveEmitter] Add builtins for contiguous prefetches

This patch also adds the enum `sv_prfop` for the prefetch operation specifier
and checks to ensure the passed enum values are valid.

Reviewers: SjoerdMeijer, efriedma, ctetreau

Reviewed By: efriedma

Tags: #clang

Differential Revision: https://reviews.llvm.org/D78674

clang/utils/TableGen/SveEmitter.cpp

diff --git a/clang/utils/TableGen/SveEmitter.cpp b/clang/utils/TableGen/SveEmitter.cpp
index 13e1be6..8c8b415 100644
--- a/clang/utils/TableGen/SveEmitter.cpp
+++ b/clang/utils/TableGen/SveEmitter.cpp
@@ -536,6 +536,15 @@
     Immediate = true;
     PredicatePattern = true;
     break;
+  case 'J':
+    Predicate = false;
+    Float = false;
+    ElementBitwidth = Bitwidth = 32;
+    NumVectors = 0;
+    Signed = true;
+    Immediate = true;
+    PrefetchOp = true;
+    break;
   case 'k':
     Predicate = false;
     Signed = true;
@@ -703,6 +712,9 @@
       if (T.isPredicatePattern())
         ImmChecks.emplace_back(
             I - 1, Emitter.getEnumValueForImmCheck("ImmCheck0_31"));
+      else if (T.isPrefetchOp())
+        ImmChecks.emplace_back(
+            I - 1, Emitter.getEnumValueForImmCheck("ImmCheck0_13"));
     }
   }
 
@@ -1005,6 +1017,22 @@
   OS << "  SV_ALL = 31\n";
   OS << "} sv_pattern;\n\n";
 
+  OS << "typedef enum\n";
+  OS << "{\n";
+  OS << "  SV_PLDL1KEEP = 0,\n";
+  OS << "  SV_PLDL1STRM = 1,\n";
+  OS << "  SV_PLDL2KEEP = 2,\n";
+  OS << "  SV_PLDL2STRM = 3,\n";
+  OS << "  SV_PLDL3KEEP = 4,\n";
+  OS << "  SV_PLDL3STRM = 5,\n";
+  OS << "  SV_PSTL1KEEP = 8,\n";
+  OS << "  SV_PSTL1STRM = 9,\n";
+  OS << "  SV_PSTL2KEEP = 10,\n";
+  OS << "  SV_PSTL2STRM = 11,\n";
+  OS << "  SV_PSTL3KEEP = 12,\n";
+  OS << "  SV_PSTL3STRM = 13\n";
+  OS << "} sv_prfop;\n\n";
+
   OS << "/* Function attributes */\n";
   OS << "#define __aio static inline __attribute__((__always_inline__, "
         "__nodebug__, __overloadable__))\n\n";