1*9880d681SAndroid Build Coastguard Worker; RUN: llc -O3 -march=arm64 -mtriple arm64-apple-ios5.0.0 < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; <rdar://problem/15992732> 3*9880d681SAndroid Build Coastguard Worker; Zero truncation is not necessary when the values are extended properly 4*9880d681SAndroid Build Coastguard Worker; already. 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker@block = common global i8* null, align 8 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Workerdefine zeroext i8 @foo(i32 %i1, i32 %i2) { 9*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: foo: 10*9880d681SAndroid Build Coastguard Worker; CHECK: cset 11*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: and 12*9880d681SAndroid Build Coastguard Workerentry: 13*9880d681SAndroid Build Coastguard Worker %idxprom = sext i32 %i1 to i64 14*9880d681SAndroid Build Coastguard Worker %0 = load i8*, i8** @block, align 8 15*9880d681SAndroid Build Coastguard Worker %arrayidx = getelementptr inbounds i8, i8* %0, i64 %idxprom 16*9880d681SAndroid Build Coastguard Worker %1 = load i8, i8* %arrayidx, align 1 17*9880d681SAndroid Build Coastguard Worker %idxprom1 = sext i32 %i2 to i64 18*9880d681SAndroid Build Coastguard Worker %arrayidx2 = getelementptr inbounds i8, i8* %0, i64 %idxprom1 19*9880d681SAndroid Build Coastguard Worker %2 = load i8, i8* %arrayidx2, align 1 20*9880d681SAndroid Build Coastguard Worker %cmp = icmp eq i8 %1, %2 21*9880d681SAndroid Build Coastguard Worker br i1 %cmp, label %return, label %if.then 22*9880d681SAndroid Build Coastguard Worker 23*9880d681SAndroid Build Coastguard Workerif.then: ; preds = %entry 24*9880d681SAndroid Build Coastguard Worker %cmp7 = icmp ugt i8 %1, %2 25*9880d681SAndroid Build Coastguard Worker %conv9 = zext i1 %cmp7 to i8 26*9880d681SAndroid Build Coastguard Worker br label %return 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Workerreturn: ; preds = %entry, %if.then 29*9880d681SAndroid Build Coastguard Worker %retval.0 = phi i8 [ %conv9, %if.then ], [ 1, %entry ] 30*9880d681SAndroid Build Coastguard Worker ret i8 %retval.0 31*9880d681SAndroid Build Coastguard Worker} 32