commit c3c9c486e48fd8fe4ab9929b1aa614dd6e613d2c
author Dan Gohman <gohman@apple.com> Wed Aug 05 05:33:42 2009 +0000
committer Dan Gohman <gohman@apple.com> Wed Aug 05 05:33:42 2009 +0000
tree e3dd0d133962bf2f4910bf3638ae60a607efca3d
parent 26d054d903488d956c23a17d78b6bc8cbd9553cb

Teach X86FastISel how to handle CCValAssign::BCvt, which is used for
MMX arguments. This fixes PR4684.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78163 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86FastISel.cpp

diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp
index de519e4..a4bb1be 100644
--- a/lib/Target/X86/X86FastISel.cpp
+++ b/lib/Target/X86/X86FastISel.cpp
@@ -1351,6 +1351,14 @@
       ArgVT = VA.getLocVT();
       break;
     }
+    case CCValAssign::BCvt: {
+      unsigned BC = FastEmit_r(ArgVT.getSimpleVT(), VA.getLocVT().getSimpleVT(),
+                               ISD::BIT_CONVERT, Arg);
+      assert(BC != 0 && "Failed to emit a bitcast!");
+      Arg = BC;
+      ArgVT = VA.getLocVT();
+      break;
+    }
     }
     
     if (VA.isRegLoc()) {