[X86] Create mergeable constant pool entries for AVX

We supported creating mergeable constant pool entries for smaller
constants but not for 32-byte AVX constants.

llvm-svn: 261584

2 files changed, 8 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/MachineFunction.cpp b/llvm/lib/CodeGen/MachineFunction.cpp
index a2823500fa6..e93299fccb2 100644
--- a/llvm/lib/CodeGen/MachineFunction.cpp
+++ b/llvm/lib/CodeGen/MachineFunction.cpp
@@ -852,6 +852,8 @@ MachineConstantPoolEntry::getSectionKind(const DataLayout *DL) const {
     return SectionKind::getMergeableConst8();
   case 16:
     return SectionKind::getMergeableConst16();
+  case 32:
+    return SectionKind::getMergeableConst32();
   default:
     return SectionKind::getReadOnly();
   }
diff --git a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 624eaec73b4..4229741cf5a 100644
--- a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -270,9 +270,11 @@ selectELFSectionForGlobal(MCContext &Ctx, const GlobalValue *GV,
       EntrySize = 4;
     } else if (Kind.isMergeableConst8()) {
       EntrySize = 8;
-    } else {
-      assert(Kind.isMergeableConst16() && "unknown data width");
+    } else if (Kind.isMergeableConst16()) {
       EntrySize = 16;
+    } else {
+      assert(Kind.isMergeableConst32() && "unknown data width");
+      EntrySize = 32;
     }
   }
 
@@ -375,6 +377,8 @@ MCSection *TargetLoweringObjectFileELF::getSectionForConstant(
     return MergeableConst8Section;
   if (Kind.isMergeableConst16() && MergeableConst16Section)
     return MergeableConst16Section;
+  if (Kind.isMergeableConst32() && MergeableConst32Section)
+    return MergeableConst32Section;
   if (Kind.isReadOnly())
     return ReadOnlySection;