Fix vector load/stores in the ARM assembler.

tests_lit/assembler/arm32/vldr-vector.ll

 ; Show that we know how to translate vector load instructions.
 
+; Note: Uses -O2 to remove unnecessary loads/stores, resulting in only one VLD1
+; instruction per function.
+
 ; REQUIRES: allow_dump
 
 ; Compile using standalone assembler.
 ; RUN: %p2i --filetype=asm -i %s --target=arm32 --args -O2 \
+; RUN:   -reg-use=q11,r5 \
 ; RUN:   | FileCheck %s --check-prefix=ASM
 
 ; Show bytes in assembled standalone code.
 ; RUN: %p2i --filetype=asm -i %s --target=arm32 --assemble --disassemble \
 ; RUN:   --args -O2 \
+; RUN:   -reg-use=q11,r5 \
 ; RUN:   | FileCheck %s --check-prefix=DIS
 
 ; Compile using integrated assembler.
 ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --args -O2 \
+; RUN:   -reg-use=q11,r5 \
 ; RUN:   | FileCheck %s --check-prefix=IASM
 
 ; Show bytes in assembled integrated code.
 ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --assemble --disassemble \
 ; RUN:   --args -O2 \
+; RUN:   -reg-use=q11,r5 \
 ; RUN:   | FileCheck %s --check-prefix=DIS
 
 define internal <4 x float> @testDerefFloat4(<4 x float> *%p) {
 ; ASM-LABEL: testDerefFloat4:
-; DIS-LABEL: 00000000 <testDerefFloat4>:
+; DIS-LABEL: {{.+}} <testDerefFloat4>:
 ; IASM-LABEL: testDerefFloat4:
 
 entry:
   %ret = load <4 x float>, <4 x float>* %p, align 4
-; ASM:     vld1.64      q0, [r0]
-; DIS:   0:       f4200acf
+; ASM:   vld1.32        q11, [r5]
+; DIS:   {{.*}}:        f4656a8f
+; IASM-NOT:  vld1.32
 
   ret <4 x float> %ret
 }
 
 define internal <4 x i32> @testDeref4i32(<4 x i32> *%p) {
 ; ASM-LABEL: testDeref4i32:
-; DIS-LABEL: 00000010 <testDeref4i32>:
+; DIS-LABEL: {{.+}} <testDeref4i32>:
 ; IASM-LABEL: testDeref4i32:
 
 entry:
   %ret = load <4 x i32>, <4 x i32>* %p, align 4
-; ASM:     vld1.64      q0, [r0]
-; DIS:   10:       f4200acf
+; ASM:   vld1.32        q11, [r5]
+; DIS:   {{.+}}:        f4656a8f
+; IASM-NOT:  vld1.32
 
   ret <4 x i32> %ret
 }
 
 define internal <8 x i16> @testDeref8i16(<8 x i16> *%p) {
 ; ASM-LABEL: testDeref8i16:
-; DIS-LABEL: 00000020 <testDeref8i16>:
+; DIS-LABEL: {{.+}} <testDeref8i16>:
 ; IASM-LABEL: testDeref8i16:
 
 entry:
   %ret = load <8 x i16>, <8 x i16>* %p, align 2
-; ASM:     vld1.64      q0, [r0]
-; DIS:   20:       f4200acf
+; ASM:   vld1.16        q11, [r5]
+; DIS:   {{.+}}:        f4656a4f
+; IASM-NOT:  vld1.16
 
   ret <8 x i16> %ret
 }
 
 define internal <16 x i8> @testDeref16i8(<16 x i8> *%p) {
 ; ASM-LABEL: testDeref16i8:
-; DIS-LABEL: 00000030 <testDeref16i8>:
+; DIS-LABEL: {{.+}} <testDeref16i8>:
 ; IASM-LABEL: testDeref16i8:
 
 entry:
   %ret = load <16 x i8>, <16 x i8>* %p, align 1
-; ASM:     vld1.64      q0, [r0]
-; DIS:   30:       f4200acf
+; ASM:   vld1.8         q11, [r5]
+; DIS:   {{.+}}:        f4656a0f
+; IASM-NOT:  vld1.8
 
   ret <16 x i8> %ret
 }