Add EOR(register) and EOR(immediate) to ARM integrated assembler.

tests_lit/assembler/arm32/eor.ll

+; Show that we know how to translate eor.
+
+; NOTE: We use -O2 to get rid of memory stores.
+
+; REQUIRES: allow_dump
+
+; Compile using standalone assembler.
+; RUN: %p2i --filetype=asm -i %s --target=arm32 --args -O2 \
+; 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 | FileCheck %s --check-prefix=DIS
+
+; Compile using integrated assembler.
+; RUN: %p2i --filetype=iasm -i %s --target=arm32 --args -O2 \
+; 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 | FileCheck %s --check-prefix=DIS
+
+define internal i32 @Eor1WithR0(i32 %p) {
+  %v = xor i32 %p, 1
+  ret i32 %v
+}
+
+; ASM-LABEL:Eor1WithR0:
+; ASM-NEXT:.LEor1WithR0$__0:
+; ASM-NEXT:     eor     r0, r0, #1
+
+; DIS-LABEL:00000000 <Eor1WithR0>:
+; DIS-NEXT:   0:        e2200001
+
+; IASM-LABEL:Eor1WithR0:
+; IASM-NEXT:.LEor1WithR0$__0:
+; IASM-NEXT:    .byte 0x1
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x20
+; IASM-NEXT:    .byte 0xe2
+
+define internal i32 @Eor2Regs(i32 %p1, i32 %p2) {
+  %v = xor i32 %p1, %p2
+  ret i32 %v
+}
+
+; ASM-LABEL:Eor2Regs:
+; ASM-NEXT:.LEor2Regs$__0:
+; ASM-NEXT:     eor     r0, r0, r1
+
+; DIS-LABEL:00000010 <Eor2Regs>:
+; DIS-NEXT:  10:        e0200001
+
+; IASM-LABEL:Eor2Regs:
+; IASM-NEXT:.LEor2Regs$__0:
+; IASM-NEXT:    .byte 0x1
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x20
+; IASM-NEXT:    .byte 0xe0
+
+define internal i64 @EorI64WithR0R1(i64 %p) {
+  %v = xor i64 %p, 1
+  ret i64 %v
+}
+
+; ASM-LABEL:EorI64WithR0R1:
+; ASM-NEXT:.LEorI64WithR0R1$__0:
+; ASM-NEXT:     eor     r0, r0, #1
+; ASM-NEXT:     eor     r1, r1, #0
+
+; DIS-LABEL:00000020 <EorI64WithR0R1>:
+; DIS-NEXT:  20:        e2200001
+; DIS-NEXT:  24:        e2211000
+
+; IASM-LABEL:EorI64WithR0R1:
+; IASM-NEXT:.LEorI64WithR0R1$__0:
+; IASM-NEXT:    .byte 0x1
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x20
+; IASM-NEXT:    .byte 0xe2
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x21
+; IASM-NEXT:    .byte 0xe2
+
+define internal i64 @EorI64Regs(i64 %p1, i64 %p2) {
+  %v = xor i64 %p1, %p2
+  ret i64 %v
+}
+
+; ASM-LABEL:EorI64Regs:
+; ASM-NEXT:.LEorI64Regs$__0:
+; ASM-NEXT:     eor     r0, r0, r2
+; ASM-NEXT:     eor     r1, r1, r3
+
+; DIS-LABEL:00000030 <EorI64Regs>:
+; DIS-NEXT:  30:        e0200002
+; DIS-NEXT:  34:        e0211003
+
+; IASM-LABEL:EorI64Regs:
+; IASM-NEXT:.LEorI64Regs$__0:
+; IASM-NEXT:    .byte 0x2
+; IASM-NEXT:    .byte 0x0
+; IASM-NEXT:    .byte 0x20
+; IASM-NEXT:    .byte 0xe0
+; IASM-NEXT:    .byte 0x3
+; IASM-NEXT:    .byte 0x10
+; IASM-NEXT:    .byte 0x21
+; IASM-NEXT:    .byte 0xe0