1 ; RUN: llc -O3 -mtriple arm64-apple-ios5.0.0 < %s | FileCheck %s
2 ; <rdar://problem/15992732>
3 ; Zero truncation is not necessary when the values are extended properly
6 @block = common global ptr null, align 8
8 define zeroext i8 @foo(i32 %i1, i32 %i2) {
13 %idxprom = sext i32 %i1 to i64
14 %0 = load ptr, ptr @block, align 8
15 %arrayidx = getelementptr inbounds i8, ptr %0, i64 %idxprom
16 %1 = load i8, ptr %arrayidx, align 1
17 %idxprom1 = sext i32 %i2 to i64
18 %arrayidx2 = getelementptr inbounds i8, ptr %0, i64 %idxprom1
19 %2 = load i8, ptr %arrayidx2, align 1
20 %cmp = icmp eq i8 %1, %2
21 br i1 %cmp, label %return, label %if.then
23 if.then: ; preds = %entry
24 %cmp7 = icmp ugt i8 %1, %2
25 %conv9 = zext i1 %cmp7 to i8
28 return: ; preds = %entry, %if.then
29 %retval.0 = phi i8 [ %conv9, %if.then ], [ 1, %entry ]