[llvm-commits] [llvm] r166943 - in /llvm/trunk: lib/Target/PowerPC/PPCISelLowering.cpp test/CodeGen/PowerPC/pr12757.ll

[Ulrich Weigand]

Author: uweigand
Date: Mon Oct 29 12:49:34 2012
New Revision: 166943

URL: http://llvm.org/viewvc/llvm-project?rev=166943&view=rev
Log:
Allow i32/i64 for 'f' constraint on PowerPC.
This fixes PR12757.

Added:
    llvm/trunk/test/CodeGen/PowerPC/pr12757.ll
Modified:
    llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp

Modified: llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp?rev=166943&r1=166942&r2=166943&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp Mon Oct 29 12:49:34 2012
@@ -6449,9 +6449,9 @@
         return std::make_pair(0U, &PPC::G8RCRegClass);
       return std::make_pair(0U, &PPC::GPRCRegClass);
     case 'f':
-      if (VT == MVT::f32)
+      if (VT == MVT::f32 || VT == MVT::i32)
         return std::make_pair(0U, &PPC::F4RCRegClass);
-      if (VT == MVT::f64)
+      if (VT == MVT::f64 || VT == MVT::i64)
         return std::make_pair(0U, &PPC::F8RCRegClass);
       break;
     case 'v':

Added: llvm/trunk/test/CodeGen/PowerPC/pr12757.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/PowerPC/pr12757.ll?rev=166943&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/PowerPC/pr12757.ll (added)
+++ llvm/trunk/test/CodeGen/PowerPC/pr12757.ll Mon Oct 29 12:49:34 2012
@@ -0,0 +1,14 @@
+; RUN: llc < %s | FileCheck %s
+target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
+target triple = "powerpc64-unknown-linux-gnu"
+
+define i32 @__flt_rounds() nounwind {
+entry:
+  %0 = tail call i64 asm sideeffect "mffs $0", "=f"() nounwind
+  %conv = trunc i64 %0 to i32
+  ret i32 %conv
+}
+
+; CHECK: @__flt_rounds
+; CHECK: mffs
+