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; RUN: llc -verify-machineinstrs -o - %s -mtriple=arm64-apple-ios7.0 | FileCheck %s
define i64 @test_free_zext(i8* %a, i16* %b) {
; CHECK-LABEL: test_free_zext:
; CHECK-DAG: ldrb w[[A:[0-9]+]], [x0]
; CHECK: ldrh w[[B:[0-9]+]], [x1]
; CHECK: add x0, x[[B]], x[[A]]
%1 = load i8, i8* %a, align 1
%conv = zext i8 %1 to i64
%2 = load i16, i16* %b, align 2
%conv1 = zext i16 %2 to i64
%add = add nsw i64 %conv1, %conv
ret i64 %add
}
define void @test_free_zext2(i32* %ptr, i32* %dst1, i64* %dst2) {
; CHECK-LABEL: test_free_zext2:
; CHECK: ldrh w[[A:[0-9]+]], [x0]
; CHECK-NOT: and x
; CHECK: str w[[A]], [x1]
; CHECK: str x[[A]], [x2]
%load = load i32, i32* %ptr, align 8
%load16 = and i32 %load, 65535
%load64 = zext i32 %load16 to i64
store i32 %load16, i32* %dst1, align 4
store i64 %load64, i64* %dst2, align 8
ret void
}
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