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| author | Duncan Sands <baldrick@free.fr> | 2011-01-25 15:14:15 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2011-01-25 15:14:15 +0000 |
| commit | 227fba11ca168225d913d1cea94a05b883092e76 (patch) | |
| tree | d6136703e166796c5838748f745ad92d120fe0be /test/Transforms/InstSimplify | |
| parent | afde5188f2a97bd776e1349fe78801d67e187136 (diff) | |
| download | llvm-227fba11ca168225d913d1cea94a05b883092e76.tar.gz llvm-227fba11ca168225d913d1cea94a05b883092e76.tar.bz2 llvm-227fba11ca168225d913d1cea94a05b883092e76.tar.xz | |
In which I discover that zero+zero is zero, d'oh!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124188 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstSimplify')
| -rw-r--r-- | test/Transforms/InstSimplify/2011-01-18-Compare.ll | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/test/Transforms/InstSimplify/2011-01-18-Compare.ll b/test/Transforms/InstSimplify/2011-01-18-Compare.ll index 705f354249..c905c443d2 100644 --- a/test/Transforms/InstSimplify/2011-01-18-Compare.ll +++ b/test/Transforms/InstSimplify/2011-01-18-Compare.ll @@ -61,11 +61,14 @@ define i1 @sext3() { } define i1 @add(i32 %x, i32 %y) { +; CHECK: @add %l = lshr i32 %x, 1 - %r = lshr i32 %y, 1 + %q = lshr i32 %y, 1 + %r = or i32 %q, 1 %s = add i32 %l, %r %c = icmp eq i32 %s, 0 ret i1 %c +; CHECK: ret i1 false } define i1 @add2(i8 %x, i8 %y) { @@ -78,6 +81,16 @@ define i1 @add2(i8 %x, i8 %y) { ; CHECK: ret i1 false } +define i1 @add3(i8 %x, i8 %y) { +; CHECK: @add3 + %l = zext i8 %x to i32 + %r = zext i8 %y to i32 + %s = add i32 %l, %r + %c = icmp eq i32 %s, 0 + ret i1 %c +; CHECK: ret i1 %c +} + define i1 @addpowtwo(i32 %x, i32 %y) { ; CHECK: @addpowtwo %l = lshr i32 %x, 1 |