[NFC] Rename minnan and maxnan to minimum and maximum

Summary:
Changes all uses of minnan/maxnan to minimum/maximum
globally. These names emphasize that the semantic difference between
these operations is more than just NaN-propagation.

Reviewers: arsenm, aheejin, dschuff, javed.absar

Subscribers: jholewinski, sdardis, wdng, sbc100, jgravelle-google, jrtc27, atanasyan, llvm-commits

Differential Revision: https://reviews.llvm.org/D53112

llvm-svn: 345218
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 7ab4024..53cd21c 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -452,29 +452,29 @@
     setOperationAction(ISD::FROUND, MVT::v4f32, Legal);
 
     setOperationAction(ISD::FMAXNUM, MVT::f64, Legal);
-    setOperationAction(ISD::FMAXNAN, MVT::f64, Legal);
+    setOperationAction(ISD::FMAXIMUM, MVT::f64, Legal);
     setOperationAction(ISD::FMINNUM, MVT::f64, Legal);
-    setOperationAction(ISD::FMINNAN, MVT::f64, Legal);
+    setOperationAction(ISD::FMINIMUM, MVT::f64, Legal);
 
     setOperationAction(ISD::FMAXNUM, MVT::v2f64, Legal);
-    setOperationAction(ISD::FMAXNAN, MVT::v2f64, Legal);
+    setOperationAction(ISD::FMAXIMUM, MVT::v2f64, Legal);
     setOperationAction(ISD::FMINNUM, MVT::v2f64, Legal);
-    setOperationAction(ISD::FMINNAN, MVT::v2f64, Legal);
+    setOperationAction(ISD::FMINIMUM, MVT::v2f64, Legal);
 
     setOperationAction(ISD::FMAXNUM, MVT::f32, Legal);
-    setOperationAction(ISD::FMAXNAN, MVT::f32, Legal);
+    setOperationAction(ISD::FMAXIMUM, MVT::f32, Legal);
     setOperationAction(ISD::FMINNUM, MVT::f32, Legal);
-    setOperationAction(ISD::FMINNAN, MVT::f32, Legal);
+    setOperationAction(ISD::FMINIMUM, MVT::f32, Legal);
 
     setOperationAction(ISD::FMAXNUM, MVT::v4f32, Legal);
-    setOperationAction(ISD::FMAXNAN, MVT::v4f32, Legal);
+    setOperationAction(ISD::FMAXIMUM, MVT::v4f32, Legal);
     setOperationAction(ISD::FMINNUM, MVT::v4f32, Legal);
-    setOperationAction(ISD::FMINNAN, MVT::v4f32, Legal);
+    setOperationAction(ISD::FMINIMUM, MVT::v4f32, Legal);
 
     setOperationAction(ISD::FMAXNUM, MVT::f128, Legal);
-    setOperationAction(ISD::FMAXNAN, MVT::f128, Legal);
+    setOperationAction(ISD::FMAXIMUM, MVT::f128, Legal);
     setOperationAction(ISD::FMINNUM, MVT::f128, Legal);
-    setOperationAction(ISD::FMINNAN, MVT::f128, Legal);
+    setOperationAction(ISD::FMINIMUM, MVT::f128, Legal);
   }
 
   // We have fused multiply-addition for f32 and f64 but not f128.