[AArch64][test] Add new tests for (add (mul x, c1), c2)

[dmgreen]

Sounds good.

llvm/test/CodeGen/AArch64/addimm-mulimm.ll

+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-linux-gnu | FileCheck %s
+
+define i64 @addimm_mulimm_accept_00(i64 %a) {
+; CHECK-LABEL: addimm_mulimm_accept_00:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w8, #37
+; CHECK-NEXT:    mul x8, x0, x8
+; CHECK-NEXT:    add x0, x8, #1147
+; CHECK-NEXT:    ret
+  %tmp0 = add i64 %a, 31
+  %tmp1 = mul i64 %tmp0, 37
+  ret i64 %tmp1
+}
+
+define i64 @addimm_mulimm_accept_01(i64 %a) {
+; CHECK-LABEL: addimm_mulimm_accept_01:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w8, #37
+; CHECK-NEXT:    mul x8, x0, x8
+; CHECK-NEXT:    sub x0, x8, #1147
+; CHECK-NEXT:    ret
+  %tmp0 = add i64 %a, -31
+  %tmp1 = mul i64 %tmp0, 37
+  ret i64 %tmp1
+}
+
+define signext i32 @addimm_mulimm_accept_02(i32 signext %a) {
+; CHECK-LABEL: addimm_mulimm_accept_02:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w8, #37
+; CHECK-NEXT:    mul w8, w0, w8
+; CHECK-NEXT:    add w0, w8, #1147
+; CHECK-NEXT:    ret
+  %tmp0 = add i32 %a, 31
+  %tmp1 = mul i32 %tmp0, 37
+  ret i32 %tmp1
+}
+
+define signext i32 @addimm_mulimm_accept_03(i32 signext %a) {
+; CHECK-LABEL: addimm_mulimm_accept_03:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w8, #37
+; CHECK-NEXT:    mul w8, w0, w8
+; CHECK-NEXT:    sub w0, w8, #1147
+; CHECK-NEXT:    ret
+  %tmp0 = add i32 %a, -31
+  %tmp1 = mul i32 %tmp0, 37
+  ret i32 %tmp1
+}
+
+define i64 @addimm_mulimm_accept_10(i64 %a) {
+; CHECK-LABEL: addimm_mulimm_accept_10:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w9, #32888
+; CHECK-NEXT:    mov w8, #37
+; CHECK-NEXT:    movk w9, #17, lsl #16
+; CHECK-NEXT:    madd x0, x0, x8, x9
+; CHECK-NEXT:    ret
+  %tmp0 = add i64 %a, 31000
+  %tmp1 = mul i64 %tmp0, 37
+  ret i64 %tmp1
+}
+
+define i64 @addimm_mulimm_accept_11(i64 %a) {
+; CHECK-LABEL: addimm_mulimm_accept_11:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov x9, #-32888
+; CHECK-NEXT:    mov w8, #37
+; CHECK-NEXT:    movk x9, #65518, lsl #16
+; CHECK-NEXT:    madd x0, x0, x8, x9
+; CHECK-NEXT:    ret
+  %tmp0 = add i64 %a, -31000
+  %tmp1 = mul i64 %tmp0, 37
+  ret i64 %tmp1
+}
+
+define signext i32 @addimm_mulimm_accept_12(i32 signext %a) {
+; CHECK-LABEL: addimm_mulimm_accept_12:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w9, #32888
+; CHECK-NEXT:    mov w8, #37
+; CHECK-NEXT:    movk w9, #17, lsl #16
+; CHECK-NEXT:    madd w0, w0, w8, w9
+; CHECK-NEXT:    ret
+  %tmp0 = add i32 %a, 31000
+  %tmp1 = mul i32 %tmp0, 37
+  ret i32 %tmp1
+}
+
+define signext i32 @addimm_mulimm_accept_13(i32 signext %a) {
+; CHECK-LABEL: addimm_mulimm_accept_13:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w9, #32648
+; CHECK-NEXT:    mov w8, #37
+; CHECK-NEXT:    movk w9, #65518, lsl #16
+; CHECK-NEXT:    madd w0, w0, w8, w9
+; CHECK-NEXT:    ret
+  %tmp0 = add i32 %a, -31000
+  %tmp1 = mul i32 %tmp0, 37
+  ret i32 %tmp1
+}
+
+define i64 @addimm_mulimm_reject_00(i64 %a) {
+; CHECK-LABEL: addimm_mulimm_reject_00:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w9, #1200
+; CHECK-NEXT:    mov w8, #3700
+; CHECK-NEXT:    movk w9, #175, lsl #16
+; CHECK-NEXT:    madd x0, x0, x8, x9
+; CHECK-NEXT:    ret
+  %tmp0 = add i64 %a, 3100
+  %tmp1 = mul i64 %tmp0, 3700
+  ret i64 %tmp1
+}
+
+define i64 @addimm_mulimm_reject_01(i64 %a) {
+; CHECK-LABEL: addimm_mulimm_reject_01:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov x9, #-1200
+; CHECK-NEXT:    mov w8, #3700
+; CHECK-NEXT:    movk x9, #65360, lsl #16
+; CHECK-NEXT:    madd x0, x0, x8, x9
+; CHECK-NEXT:    ret
+  %tmp0 = add i64 %a, -3100
+  %tmp1 = mul i64 %tmp0, 3700
+  ret i64 %tmp1
+}
+
+define signext i32 @addimm_mulimm_reject_02(i32 signext %a) {
+; CHECK-LABEL: addimm_mulimm_reject_02:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w9, #1200
+; CHECK-NEXT:    mov w8, #3700
+; CHECK-NEXT:    movk w9, #175, lsl #16
+; CHECK-NEXT:    madd w0, w0, w8, w9
+; CHECK-NEXT:    ret
+  %tmp0 = add i32 %a, 3100
+  %tmp1 = mul i32 %tmp0, 3700
+  ret i32 %tmp1
+}
+
+define signext i32 @addimm_mulimm_reject_03(i32 signext %a) {
+; CHECK-LABEL: addimm_mulimm_reject_03:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w9, #64336
+; CHECK-NEXT:    mov w8, #3700
+; CHECK-NEXT:    movk w9, #65360, lsl #16
+; CHECK-NEXT:    madd w0, w0, w8, w9
+; CHECK-NEXT:    ret
+  %tmp0 = add i32 %a, -3100
+  %tmp1 = mul i32 %tmp0, 3700
+  ret i32 %tmp1
+}