From: Li Jia He <hljhehlj@cn.ibm.com>
Date: Thu, 1 Nov 2018 02:32:49 +0000 (+0000)
Subject: [Clang][PowerPC] Support constraint 'wi' in asm
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4ddbc316e2f505a52102642c899015af41acc04f;p=clang

[Clang][PowerPC] Support constraint 'wi' in asm
  From the gcc manual, we can see that the specific limit of wi inline asm is “FP or VSX register to hold 64-bit integers for VSX insns or NO_REGS”. The link is https://gcc.gnu.org/onlinedocs/gcc-8.2.0/gcc/Machine-Constraints.html#Machine-Constraints. We should accept this constraint.

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D53265


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@345809 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/Targets/PPC.h b/lib/Basic/Targets/PPC.h
index 439c73a0e3..97d04af998 100644
--- a/lib/Basic/Targets/PPC.h
+++ b/lib/Basic/Targets/PPC.h
@@ -201,6 +201,7 @@ public:
       case 's': // VSX vector register to hold scalar float data
       case 'a': // Any VSX register
       case 'c': // An individual CR bit
+      case 'i': // FP or VSX register to hold 64-bit integers data
         break;
       default:
         return false;