diff options
| author | Frits van Bommel <fvbommel@gmail.com> | 2011-03-27 14:26:13 +0000 |
|---|---|---|
| committer | Frits van Bommel <fvbommel@gmail.com> | 2011-03-27 14:26:13 +0000 |
| commit | 0bb2ad2cf7f8032492401d82e0cb6be6b98406a0 (patch) | |
| tree | 6e79e42f5d24f438eb4fa23cf16a41fe102df8d8 /llvm/test/Transforms | |
| parent | d5f631cd2a518f615020c42635a818259dd0f445 (diff) | |
| download | bcm5719-llvm-0bb2ad2cf7f8032492401d82e0cb6be6b98406a0.tar.gz bcm5719-llvm-0bb2ad2cf7f8032492401d82e0cb6be6b98406a0.zip | |
Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.
llvm-svn: 128379
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/ConstProp/overflow-ops.ll | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/llvm/test/Transforms/ConstProp/overflow-ops.ll b/llvm/test/Transforms/ConstProp/overflow-ops.ll index 5587e9b6233..d1cc2eb90a8 100644 --- a/llvm/test/Transforms/ConstProp/overflow-ops.ll +++ b/llvm/test/Transforms/ConstProp/overflow-ops.ll @@ -2,6 +2,14 @@ %i8i1 = type {i8, i1} +declare {i8, i1} @llvm.uadd.with.overflow.i8(i8, i8) +declare {i8, i1} @llvm.usub.with.overflow.i8(i8, i8) +declare {i8, i1} @llvm.umul.with.overflow.i8(i8, i8) + +declare {i8, i1} @llvm.sadd.with.overflow.i8(i8, i8) +declare {i8, i1} @llvm.ssub.with.overflow.i8(i8, i8) +declare {i8, i1} @llvm.smul.with.overflow.i8(i8, i8) + ;;----------------------------- ;; uadd ;;----------------------------- @@ -47,6 +55,28 @@ entry: } ;;----------------------------- +;; umul +;;----------------------------- + +define {i8, i1} @umul_1() nounwind { +entry: + %t = call {i8, i1} @llvm.umul.with.overflow.i8(i8 100, i8 3) + ret {i8, i1} %t + +; CHECK: @umul_1 +; CHECK: ret %i8i1 { i8 44, i1 true } +} + +define {i8, i1} @umul_2() nounwind { +entry: + %t = call {i8, i1} @llvm.umul.with.overflow.i8(i8 100, i8 2) + ret {i8, i1} %t + +; CHECK: @umul_2 +; CHECK: ret %i8i1 { i8 -56, i1 false } +} + +;;----------------------------- ;; sadd ;;----------------------------- @@ -163,14 +193,9 @@ entry: ; CHECK: ret %i8i1 { i8 -10, i1 false } } - - -declare {i8, i1} @llvm.uadd.with.overflow.i8(i8, i8) -declare {i8, i1} @llvm.usub.with.overflow.i8(i8, i8) - -declare {i8, i1} @llvm.sadd.with.overflow.i8(i8, i8) -declare {i8, i1} @llvm.ssub.with.overflow.i8(i8, i8) -declare {i8, i1} @llvm.smul.with.overflow.i8(i8, i8) +;;----------------------------- +;; smul +;;----------------------------- ; rdar://8501501 define {i8, i1} @smul_1() nounwind { |
