1*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=arm64 -mtriple=arm64-apple-darwin < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; Check that the peephole optimizer knows about sext and zext instructions. 3*9880d681SAndroid Build Coastguard Worker; CHECK: test1sext 4*9880d681SAndroid Build Coastguard Workerdefine i32 @test1sext(i64 %A, i64 %B, i32* %P, i64 *%P2) nounwind { 5*9880d681SAndroid Build Coastguard Worker %C = add i64 %A, %B 6*9880d681SAndroid Build Coastguard Worker ; CHECK: add x[[SUM:[0-9]+]], x0, x1 7*9880d681SAndroid Build Coastguard Worker %D = trunc i64 %C to i32 8*9880d681SAndroid Build Coastguard Worker %E = shl i64 %C, 32 9*9880d681SAndroid Build Coastguard Worker %F = ashr i64 %E, 32 10*9880d681SAndroid Build Coastguard Worker ; CHECK: sxtw x[[EXT:[0-9]+]], w[[SUM]] 11*9880d681SAndroid Build Coastguard Worker store volatile i64 %F, i64 *%P2 12*9880d681SAndroid Build Coastguard Worker ; CHECK: str x[[EXT]] 13*9880d681SAndroid Build Coastguard Worker store volatile i32 %D, i32* %P 14*9880d681SAndroid Build Coastguard Worker ; Reuse low bits of extended register, don't extend live range of SUM. 15*9880d681SAndroid Build Coastguard Worker ; CHECK: str w[[SUM]] 16*9880d681SAndroid Build Coastguard Worker ret i32 %D 17*9880d681SAndroid Build Coastguard Worker} 18