Change register allocation order for ARM VFP and NEON registers to put the

callee-saved registers at the end of the lists.  Also prefer to avoid using
the low registers that are in register subclasses required by certain
instructions, so that those registers will more likely be available when needed.
This change makes a huge improvement in spilling in some cases.  Thanks to
Jakob for helping me realize the problem.

Most of this patch is fixing the testsuite.  There are quite a few places
where we're checking for specific registers.  I changed those to wildcards
in places where that doesn't weaken the tests.  The spill-q.ll and
thumb2-spill-q.ll tests stopped spilling with this change, so I added a bunch
of live values to force spills on those tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116055 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 30 insertions, 30 deletions

diff --git a/test/CodeGen/ARM/vmov.ll b/test/CodeGen/ARM/vmov.ll
index 8cd94576b0c..4d654d771f4 100644
--- a/test/CodeGen/ARM/vmov.ll
+++ b/test/CodeGen/ARM/vmov.ll
@@ -2,169 +2,169 @@
 
 define <8 x i8> @v_movi8() nounwind {
 ;CHECK: v_movi8:
-;CHECK: vmov.i8 d0, #0x8
+;CHECK: vmov.i8 d{{.*}}, #0x8
 	ret <8 x i8> < i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8 >
 }
 
 define <4 x i16> @v_movi16a() nounwind {
 ;CHECK: v_movi16a:
-;CHECK: vmov.i16 d0, #0x10
+;CHECK: vmov.i16 d{{.*}}, #0x10
 	ret <4 x i16> < i16 16, i16 16, i16 16, i16 16 >
 }
 
 define <4 x i16> @v_movi16b() nounwind {
 ;CHECK: v_movi16b:
-;CHECK: vmov.i16 d0, #0x1000
+;CHECK: vmov.i16 d{{.*}}, #0x1000
 	ret <4 x i16> < i16 4096, i16 4096, i16 4096, i16 4096 >
 }
 
 define <4 x i16> @v_mvni16a() nounwind {
 ;CHECK: v_mvni16a:
-;CHECK: vmvn.i16 d0, #0x10
+;CHECK: vmvn.i16 d{{.*}}, #0x10
 	ret <4 x i16> < i16 65519, i16 65519, i16 65519, i16 65519 >
 }
 
 define <4 x i16> @v_mvni16b() nounwind {
 ;CHECK: v_mvni16b:
-;CHECK: vmvn.i16 d0, #0x1000
+;CHECK: vmvn.i16 d{{.*}}, #0x1000
 	ret <4 x i16> < i16 61439, i16 61439, i16 61439, i16 61439 >
 }
 
 define <2 x i32> @v_movi32a() nounwind {
 ;CHECK: v_movi32a:
-;CHECK: vmov.i32 d0, #0x20
+;CHECK: vmov.i32 d{{.*}}, #0x20
 	ret <2 x i32> < i32 32, i32 32 >
 }
 
 define <2 x i32> @v_movi32b() nounwind {
 ;CHECK: v_movi32b:
-;CHECK: vmov.i32 d0, #0x2000
+;CHECK: vmov.i32 d{{.*}}, #0x2000
 	ret <2 x i32> < i32 8192, i32 8192 >
 }
 
 define <2 x i32> @v_movi32c() nounwind {
 ;CHECK: v_movi32c:
-;CHECK: vmov.i32 d0, #0x200000
+;CHECK: vmov.i32 d{{.*}}, #0x200000
 	ret <2 x i32> < i32 2097152, i32 2097152 >
 }
 
 define <2 x i32> @v_movi32d() nounwind {
 ;CHECK: v_movi32d:
-;CHECK: vmov.i32 d0, #0x20000000
+;CHECK: vmov.i32 d{{.*}}, #0x20000000
 	ret <2 x i32> < i32 536870912, i32 536870912 >
 }
 
 define <2 x i32> @v_movi32e() nounwind {
 ;CHECK: v_movi32e:
-;CHECK: vmov.i32 d0, #0x20FF
+;CHECK: vmov.i32 d{{.*}}, #0x20FF
 	ret <2 x i32> < i32 8447, i32 8447 >
 }
 
 define <2 x i32> @v_movi32f() nounwind {
 ;CHECK: v_movi32f:
-;CHECK: vmov.i32 d0, #0x20FFFF
+;CHECK: vmov.i32 d{{.*}}, #0x20FFFF
 	ret <2 x i32> < i32 2162687, i32 2162687 >
 }
 
 define <2 x i32> @v_mvni32a() nounwind {
 ;CHECK: v_mvni32a:
-;CHECK: vmvn.i32 d0, #0x20
+;CHECK: vmvn.i32 d{{.*}}, #0x20
 	ret <2 x i32> < i32 4294967263, i32 4294967263 >
 }
 
 define <2 x i32> @v_mvni32b() nounwind {
 ;CHECK: v_mvni32b:
-;CHECK: vmvn.i32 d0, #0x2000
+;CHECK: vmvn.i32 d{{.*}}, #0x2000
 	ret <2 x i32> < i32 4294959103, i32 4294959103 >
 }
 
 define <2 x i32> @v_mvni32c() nounwind {
 ;CHECK: v_mvni32c:
-;CHECK: vmvn.i32 d0, #0x200000
+;CHECK: vmvn.i32 d{{.*}}, #0x200000
 	ret <2 x i32> < i32 4292870143, i32 4292870143 >
 }
 
 define <2 x i32> @v_mvni32d() nounwind {
 ;CHECK: v_mvni32d:
-;CHECK: vmvn.i32 d0, #0x20000000
+;CHECK: vmvn.i32 d{{.*}}, #0x20000000
 	ret <2 x i32> < i32 3758096383, i32 3758096383 >
 }
 
 define <2 x i32> @v_mvni32e() nounwind {
 ;CHECK: v_mvni32e:
-;CHECK: vmvn.i32 d0, #0x20FF
+;CHECK: vmvn.i32 d{{.*}}, #0x20FF
 	ret <2 x i32> < i32 4294958848, i32 4294958848 >
 }
 
 define <2 x i32> @v_mvni32f() nounwind {
 ;CHECK: v_mvni32f:
-;CHECK: vmvn.i32 d0, #0x20FFFF
+;CHECK: vmvn.i32 d{{.*}}, #0x20FFFF
 	ret <2 x i32> < i32 4292804608, i32 4292804608 >
 }
 
 define <1 x i64> @v_movi64() nounwind {
 ;CHECK: v_movi64:
-;CHECK: vmov.i64 d0, #0xFF0000FF0000FFFF
+;CHECK: vmov.i64 d{{.*}}, #0xFF0000FF0000FFFF
 	ret <1 x i64> < i64 18374687574888349695 >
 }
 
 define <16 x i8> @v_movQi8() nounwind {
 ;CHECK: v_movQi8:
-;CHECK: vmov.i8 q0, #0x8
+;CHECK: vmov.i8 q{{.*}}, #0x8
 	ret <16 x i8> < i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8, i8 8 >
 }
 
 define <8 x i16> @v_movQi16a() nounwind {
 ;CHECK: v_movQi16a:
-;CHECK: vmov.i16 q0, #0x10
+;CHECK: vmov.i16 q{{.*}}, #0x10
 	ret <8 x i16> < i16 16, i16 16, i16 16, i16 16, i16 16, i16 16, i16 16, i16 16 >
 }
 
 define <8 x i16> @v_movQi16b() nounwind {
 ;CHECK: v_movQi16b:
-;CHECK: vmov.i16 q0, #0x1000
+;CHECK: vmov.i16 q{{.*}}, #0x1000
 	ret <8 x i16> < i16 4096, i16 4096, i16 4096, i16 4096, i16 4096, i16 4096, i16 4096, i16 4096 >
 }
 
 define <4 x i32> @v_movQi32a() nounwind {
 ;CHECK: v_movQi32a:
-;CHECK: vmov.i32 q0, #0x20
+;CHECK: vmov.i32 q{{.*}}, #0x20
 	ret <4 x i32> < i32 32, i32 32, i32 32, i32 32 >
 }
 
 define <4 x i32> @v_movQi32b() nounwind {
 ;CHECK: v_movQi32b:
-;CHECK: vmov.i32 q0, #0x2000
+;CHECK: vmov.i32 q{{.*}}, #0x2000
 	ret <4 x i32> < i32 8192, i32 8192, i32 8192, i32 8192 >
 }
 
 define <4 x i32> @v_movQi32c() nounwind {
 ;CHECK: v_movQi32c:
-;CHECK: vmov.i32 q0, #0x200000
+;CHECK: vmov.i32 q{{.*}}, #0x200000
 	ret <4 x i32> < i32 2097152, i32 2097152, i32 2097152, i32 2097152 >
 }
 
 define <4 x i32> @v_movQi32d() nounwind {
 ;CHECK: v_movQi32d:
-;CHECK: vmov.i32 q0, #0x20000000
+;CHECK: vmov.i32 q{{.*}}, #0x20000000
 	ret <4 x i32> < i32 536870912, i32 536870912, i32 536870912, i32 536870912 >
 }
 
 define <4 x i32> @v_movQi32e() nounwind {
 ;CHECK: v_movQi32e:
-;CHECK: vmov.i32 q0, #0x20FF
+;CHECK: vmov.i32 q{{.*}}, #0x20FF
 	ret <4 x i32> < i32 8447, i32 8447, i32 8447, i32 8447 >
 }
 
 define <4 x i32> @v_movQi32f() nounwind {
 ;CHECK: v_movQi32f:
-;CHECK: vmov.i32 q0, #0x20FFFF
+;CHECK: vmov.i32 q{{.*}}, #0x20FFFF
 	ret <4 x i32> < i32 2162687, i32 2162687, i32 2162687, i32 2162687 >
 }
 
 define <2 x i64> @v_movQi64() nounwind {
 ;CHECK: v_movQi64:
-;CHECK: vmov.i64 q0, #0xFF0000FF0000FFFF
+;CHECK: vmov.i64 q{{.*}}, #0xFF0000FF0000FFFF
 	ret <2 x i64> < i64 18374687574888349695, i64 18374687574888349695 >
 }
 
@@ -173,7 +173,7 @@ define <2 x i64> @v_movQi64() nounwind {
 define void @vdupn128(%struct.int8x8_t* noalias nocapture sret %agg.result) nounwind {
 entry:
 ;CHECK: vdupn128:
-;CHECK: vmov.i8 d0, #0x80
+;CHECK: vmov.i8 d{{.*}}, #0x80
   %0 = getelementptr inbounds %struct.int8x8_t* %agg.result, i32 0, i32 0 ; <<8 x i8>*> [#uses=1]
   store <8 x i8> <i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128>, <8 x i8>* %0, align 8
   ret void
@@ -182,7 +182,7 @@ entry:
 define void @vdupnneg75(%struct.int8x8_t* noalias nocapture sret %agg.result) nounwind {
 entry:
 ;CHECK: vdupnneg75:
-;CHECK: vmov.i8 d0, #0xB5
+;CHECK: vmov.i8 d{{.*}}, #0xB5
   %0 = getelementptr inbounds %struct.int8x8_t* %agg.result, i32 0, i32 0 ; <<8 x i8>*> [#uses=1]
   store <8 x i8> <i8 -75, i8 -75, i8 -75, i8 -75, i8 -75, i8 -75, i8 -75, i8 -75>, <8 x i8>* %0, align 8
   ret void