[ARM] Remove -fno-unsafe-math from a number of tests. NFC

llvm.convert/to.fp16 and from.fp16 are no longer used / deprecated and do not
need to be tested any more.

Author: davemgreen

llvm/test/CodeGen/ARM/2009-10-02-NEONSubregsBug.ll

@@ -1,4 +1,4 @@
-; RUN: llc -mtriple=armv7-eabi -mcpu=cortex-a8 -enable-unsafe-fp-math < %s
+; RUN: llc -mtriple=armv7-eabi -mcpu=cortex-a8 < %s
 ; PR5367
 
 define arm_aapcs_vfpcc void @_Z27Benchmark_SceDualQuaternionPvm(ptr nocapture %pBuffer, i32 %numItems) nounwind {

llvm/test/CodeGen/ARM/2012-04-10-DAGCombine.ll

@@ -1,4 +1,4 @@
-; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a9 -enable-unsafe-fp-math %s -o /dev/null
+; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a9 %s -o /dev/null
 ;target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32-S64"
 ;target triple = "armv7-none-linux-gnueabi"
 

llvm/test/CodeGen/ARM/fnmul.ll

@@ -1,15 +1,30 @@
-; RUN: llc -mtriple=arm-eabi -mattr=+v6,+vfp2 %s -o -                        | FileCheck %s -check-prefix STRICT
-
-; RUN: llc -mtriple=arm-eabi -mattr=+v6,+vfp2 -enable-unsafe-fp-math %s -o - | FileCheck %s -check-prefix UNSAFE
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=arm-eabi -mattr=+v6,+vfp2 %s -o - | FileCheck %s
 
 define double @t1(double %a, double %b) {
-; STRICT:    vnmul.f64
-;
-; UNSAFE:    vnmul.f64
+; CHECK-LABEL: t1:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmov d0, r2, r3
+; CHECK-NEXT:    vmov d1, r0, r1
+; CHECK-NEXT:    vnmul.f64 d0, d1, d0
+; CHECK-NEXT:    vmov r0, r1, d0
+; CHECK-NEXT:    bx lr
 entry:
-        %tmp2 = fsub double -0.000000e+00, %a            ; <double> [#uses=1]
-        %tmp4 = fmul double %tmp2, %b            ; <double> [#uses=1]
-        ret double %tmp4
+  %tmp2 = fsub double -0.000000e+00, %a
+  %tmp4 = fmul double %tmp2, %b
+  ret double %tmp4
 }
 
-
+define double @tfast(double %a, double %b) {
+; CHECK-LABEL: tfast:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    vmov d0, r2, r3
+; CHECK-NEXT:    vmov d1, r0, r1
+; CHECK-NEXT:    vnmul.f64 d0, d1, d0
+; CHECK-NEXT:    vmov r0, r1, d0
+; CHECK-NEXT:    bx lr
+entry:
+  %tmp2 = fsub fast double -0.000000e+00, %a
+  %tmp4 = fmul fast double %tmp2, %b
+  ret double %tmp4
+}