llvm-6502/test/CodeGen/ARM64/fold-lsl.ll

; RUN: llc < %s -march=arm64 -arm64-neon-syntax=apple | FileCheck %s
;
; <rdar://problem/14486451>

%struct.a = type [256 x i16]
%struct.b = type [256 x i32]
%struct.c = type [256 x i64]

define i16 @load_halfword(%struct.a* %ctx, i32 %xor72) nounwind {
; CHECK-LABEL: load_halfword:
; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8
; CHECK: ldrh w0, [x0, [[REG]], lsl #1]
  %shr81 = lshr i32 %xor72, 9
  %conv82 = zext i32 %shr81 to i64
  %idxprom83 = and i64 %conv82, 255
  %arrayidx86 = getelementptr inbounds %struct.a* %ctx, i64 0, i64 %idxprom83
  %result = load i16* %arrayidx86, align 2
  ret i16 %result
}

define i32 @load_word(%struct.b* %ctx, i32 %xor72) nounwind {
; CHECK-LABEL: load_word:
; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8
; CHECK: ldr w0, [x0, [[REG]], lsl #2]
  %shr81 = lshr i32 %xor72, 9
  %conv82 = zext i32 %shr81 to i64
  %idxprom83 = and i64 %conv82, 255
  %arrayidx86 = getelementptr inbounds %struct.b* %ctx, i64 0, i64 %idxprom83
  %result = load i32* %arrayidx86, align 4
  ret i32 %result
}

define i64 @load_doubleword(%struct.c* %ctx, i32 %xor72) nounwind {
; CHECK-LABEL: load_doubleword:
; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8
; CHECK: ldr x0, [x0, [[REG]], lsl #3]
  %shr81 = lshr i32 %xor72, 9
  %conv82 = zext i32 %shr81 to i64
  %idxprom83 = and i64 %conv82, 255
  %arrayidx86 = getelementptr inbounds %struct.c* %ctx, i64 0, i64 %idxprom83
  %result = load i64* %arrayidx86, align 8
  ret i64 %result
}

define void @store_halfword(%struct.a* %ctx, i32 %xor72, i16 %val) nounwind {
; CHECK-LABEL: store_halfword:
; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8
; CHECK: strh w2, [x0, [[REG]], lsl #1]
  %shr81 = lshr i32 %xor72, 9
  %conv82 = zext i32 %shr81 to i64
  %idxprom83 = and i64 %conv82, 255
  %arrayidx86 = getelementptr inbounds %struct.a* %ctx, i64 0, i64 %idxprom83
  store i16 %val, i16* %arrayidx86, align 8
  ret void
}

define void @store_word(%struct.b* %ctx, i32 %xor72, i32 %val) nounwind {
; CHECK-LABEL: store_word:
; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8
; CHECK: str w2, [x0, [[REG]], lsl #2]
  %shr81 = lshr i32 %xor72, 9
  %conv82 = zext i32 %shr81 to i64
  %idxprom83 = and i64 %conv82, 255
  %arrayidx86 = getelementptr inbounds %struct.b* %ctx, i64 0, i64 %idxprom83
  store i32 %val, i32* %arrayidx86, align 8
  ret void
}

define void @store_doubleword(%struct.c* %ctx, i32 %xor72, i64 %val) nounwind {
; CHECK-LABEL: store_doubleword:
; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8
; CHECK: str x2, [x0, [[REG]], lsl #3]
  %shr81 = lshr i32 %xor72, 9
  %conv82 = zext i32 %shr81 to i64
  %idxprom83 = and i64 %conv82, 255
  %arrayidx86 = getelementptr inbounds %struct.c* %ctx, i64 0, i64 %idxprom83
  store i64 %val, i64* %arrayidx86, align 8
  ret void
}