1 ; RUN: llc -verify-machineinstrs -o - %s -mtriple=arm64-apple-ios7.0 | FileCheck %s 2 3 define i64 @test_free_zext(i8* %a, i16* %b) { 4 ; CHECK-LABEL: test_free_zext 5 ; CHECK-DAG: ldrb w[[A:[0-9]+]], [x0] 6 ; CHECK: ldrh w[[B:[0-9]+]], [x1] 7 ; CHECK: add x0, x[[B]], x[[A]] 8 %1 = load i8, i8* %a, align 1 9 %conv = zext i8 %1 to i64 10 %2 = load i16, i16* %b, align 2 11 %conv1 = zext i16 %2 to i64 12 %add = add nsw i64 %conv1, %conv 13 ret i64 %add 14 } 15
