[llvm-commits] [llvm] r63911 - in /llvm/branches/Apple/Dib: lib/CodeGen/SimpleRegisterCoalescing.cpp test/CodeGen/X86/2009-02-05-CoalescerBug.ll

[Bill Wendling]

Author: void
Date: Thu Feb  5 20:10:38 2009
New Revision: 63911

URL: http://llvm.org/viewvc/llvm-project?rev=63911&view=rev
Log:
Pull r63890 into Dib.

Added:
    llvm/branches/Apple/Dib/test/CodeGen/X86/2009-02-05-CoalescerBug.ll
Modified:
    llvm/branches/Apple/Dib/lib/CodeGen/SimpleRegisterCoalescing.cpp

Modified: llvm/branches/Apple/Dib/lib/CodeGen/SimpleRegisterCoalescing.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Dib/lib/CodeGen/SimpleRegisterCoalescing.cpp?rev=63911&r1=63910&r2=63911&view=diff

==============================================================================
--- llvm/branches/Apple/Dib/lib/CodeGen/SimpleRegisterCoalescing.cpp (original)
+++ llvm/branches/Apple/Dib/lib/CodeGen/SimpleRegisterCoalescing.cpp Thu Feb  5 20:10:38 2009
@@ -558,6 +558,9 @@
   const TargetInstrDesc &TID = DefMI->getDesc();
   if (!TID.isAsCheapAsAMove())
     return false;
+  if (!DefMI->getDesc().isRematerializable() ||
+      !tii_->isTriviallyReMaterializable(DefMI))
+    return false;
   bool SawStore = false;
   if (!DefMI->isSafeToMove(tii_, SawStore))
     return false;

Added: llvm/branches/Apple/Dib/test/CodeGen/X86/2009-02-05-CoalescerBug.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Dib/test/CodeGen/X86/2009-02-05-CoalescerBug.ll?rev=63911&view=auto

==============================================================================
--- llvm/branches/Apple/Dib/test/CodeGen/X86/2009-02-05-CoalescerBug.ll (added)
+++ llvm/branches/Apple/Dib/test/CodeGen/X86/2009-02-05-CoalescerBug.ll Thu Feb  5 20:10:38 2009
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep movss  | count 2
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep movaps | count 4
+
+define i1 @cfft2_bb12_bb12_2E_ce([2 x float]* %y, [2 x float]* %w, i32, [2 x float]* %x.pn59, i32 %smax190, i32 %j.1180, <4 x float> %wu.2179, <4 x float> %wr.2178, <4 x float>* %tmp89.out, <4 x float>* %tmp107.out, i32* %indvar.next218.out) nounwind {
+newFuncRoot:
+	%tmp82 = insertelement <4 x float> %wr.2178, float 0.000000e+00, i32 0		; <<4 x float>> [#uses=1]
+	%tmp85 = insertelement <4 x float> %tmp82, float 0.000000e+00, i32 1		; <<4 x float>> [#uses=1]
+	%tmp87 = insertelement <4 x float> %tmp85, float 0.000000e+00, i32 2		; <<4 x float>> [#uses=1]
+	%tmp89 = insertelement <4 x float> %tmp87, float 0.000000e+00, i32 3		; <<4 x float>> [#uses=1]
+	store <4 x float> %tmp89, <4 x float>* %tmp89.out
+	ret i1 false
+}