; Pin: LowerMUL_I32's strength reductions.  A product known to fit 16
; bits -- a u8 index times a 6-byte record's size, the address math of
; `sim->spr[idx]` -- is a 16-bit multiply, here shifts and adds
; ((i << 3) - (i << 1)), not a __umulhisi3 call per access.  A 32-bit
; multiply by a constant of two signed digits (2^N +- 2^M: 6, 10, 12, 24,
; ...) is two inlined shifts and an add or subtract instead of __mulsi3;
; a constant of more digits keeps the call.
;
; RUN: llc -mtriple=w65816 -O2 < %s | FileCheck %s
; RUN: env W65816_DISABLE_MUL_SHIFT_ADD=1 llc -mtriple=w65816 -O2 < %s | FileCheck %s --check-prefix=OFF

target datalayout = "e-m:e-p:32:16-i16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16"

define zeroext i8 @recordField(ptr %s, i8 zeroext %idx) {
; CHECK-LABEL: recordField:
; CHECK-NOT:   jsl
; CHECK:       and #0xff
; CHECK-NEXT:  asl a
; CHECK-NEXT:  sta 0x1, s
; CHECK-NEXT:  asl a
; CHECK-NEXT:  asl a
; CHECK-NEXT:  sec
; CHECK-NEXT:  sbc 0x1, s
; CHECK:       lda [0xe0], y
; CHECK:       rtl
; OFF-LABEL:   recordField:
; OFF:         jsl __umulhisi3
  %i = zext i8 %idx to i32
  %rec = getelementptr inbounds [6 x i8], ptr %s, i32 %i
  %f = getelementptr inbounds i8, ptr %rec, i32 2
  %v = load i8, ptr %f, align 1
  ret i8 %v
}

define i32 @longTimes6(i32 %x) {
; CHECK-LABEL: longTimes6:
; CHECK-NOT:   jsl
; CHECK:       sbc
; CHECK:       rtl
; OFF-LABEL:   longTimes6:
; OFF:         jsl __mulsi3
  %m = mul i32 %x, 6
  ret i32 %m
}

define i32 @longTimes1000(i32 %x) {
; CHECK-LABEL: longTimes1000:
; CHECK:       jsl __mulsi3
  %m = mul i32 %x, 1000
  ret i32 %m
}