[PowerPC] Support @h modifier

This adds necessary infrastructure to support the @h modifier.
Note that all required relocation types were already present
(and unused).

This patch provides support for using @h in the assembler;
it would also be possible to now use this feature in code
generated by the compiler, but this is not done yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184548 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp b/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
index 752b6f7..964f272 100644
--- a/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
+++ b/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
@@ -546,7 +546,7 @@ ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) {
 }
 
 /// Extract @l/@ha modifier from expression.  Recursively scan
-/// the expression and check for VK_PPC_LO / VK_PPC_HA
+/// the expression and check for VK_PPC_LO/HI/HA
 /// symbol variants.  If all symbols with modifier use the same
 /// variant, return the corresponding PPCMCExpr::VariantKind,
 /// and a modified expression using the default symbol variant.
@@ -569,6 +569,9 @@ ExtractModifierFromExpr(const MCExpr *E,
     case MCSymbolRefExpr::VK_PPC_LO:
       Variant = PPCMCExpr::VK_PPC_LO;
       break;
+    case MCSymbolRefExpr::VK_PPC_HI:
+      Variant = PPCMCExpr::VK_PPC_HI;
+      break;
     case MCSymbolRefExpr::VK_PPC_HA:
       Variant = PPCMCExpr::VK_PPC_HA;
       break;