[ARM] Change a couple of instances of LiveRegs.contains to !LiveRegs.available

This changes a couple of calls to LiveRegs.contains to
!LiveRegs.available, one in Thumb1FrameLoweringInfo (which modifies a
test to look more correct to me, given r7 should be the frame pointer so
is not available), and another in the ARMLoadStoreOptimizer, that I
don't have a test for, it was just found by inspection.

Differential Revision: https://reviews.llvm.org/D107454

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index fd06bfd..6b114f8 100644
--- a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -587,7 +587,7 @@ unsigned ARMLoadStoreOpt::findFreeReg(const TargetRegisterClass &RegClass) {
   }
 
   for (unsigned Reg : RegClassInfo.getOrder(&RegClass))
-    if (!LiveRegs.contains(Reg))
+    if (LiveRegs.available(MF->getRegInfo(), Reg))
       return Reg;
   return 0;
 }