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| 1 | define i32 @test1(i32 %x, i32 %y) nounwind uwtable readnone ssp {
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| 2 | entry: | |
| 3 | %and = and i32 %y, %x | |
| 4 | %cmp = icmp eq i32 %and, 0 | |
| 5 | br i1 %cmp, label %if.then, label %if.end | |
| 6 | ||
| 7 | if.then: ; preds = %entry | |
| 8 | %neg = xor i32 %y, -1 | |
| 9 | %and4 = and i32 %neg, %x | |
| 10 | br label %if.end | |
| 11 | ||
| 12 | if.end: ; preds = %if.then, %entry | |
| 13 | %x.addr.0 = phi i32 [ %and4, %if.then ], [ %x, %entry ] | |
| 14 | ret i32 %x.addr.0 | |
| 15 | } | |
| 16 | ||
| 17 | define i32 @test2(i32 %x, i32 %y) nounwind uwtable readnone ssp {
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| 18 | entry: | |
| 19 | %and = and i32 %y, %x | |
| 20 | %cmp = icmp eq i32 %and, 0 | |
| 21 | %neg = xor i32 %y, -1 | |
| 22 | %and4 = and i32 %neg, %x | |
| 23 | br i1 %cmp, label %if.then, label %if.end | |
| 24 | ||
| 25 | if.then: ; preds = %entry | |
| 26 | br label %if.end | |
| 27 | ||
| 28 | if.end: ; preds = %if.then, %entry | |
| 29 | %x.addr.0 = select i1 %cmp, i32 %and4, i32 %x | |
| 30 | ret i32 %x.addr.0 | |
| 31 | } | |
| 32 | ||
| 33 | Try: | |
| 34 | opt -O2 x.ll -S -o - | |
| 35 | and | |
| 36 | opt -O2 x.ll -S -o - | llvm-commit/Debug+Asserts/bin/llc -O2 -o - |
