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| author | Jingyue Wu <jingyue@google.com> | 2016-01-22 19:47:26 +0000 |
|---|---|---|
| committer | Jingyue Wu <jingyue@google.com> | 2016-01-22 19:47:26 +0000 |
| commit | e250d8d1e8d98d9fb2140064e33e3f200ae92a7d (patch) | |
| tree | a53acbc2aaf6aaac9bc3e8718725c01753b16f40 /test/CodeGen/NVPTX/arithmetic-int.ll | |
| parent | e18fd5205301dff025bcac91af795bdd2162f1e2 (diff) | |
[NVPTX] expand mul_lohi to mul_lo and mul_hi
Summary: Fixes PR26186.
Reviewers: grosser, jholewinski
Subscribers: jholewinski, llvm-commits
Differential Revision: http://reviews.llvm.org/D16479
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258536 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/NVPTX/arithmetic-int.ll')
| -rw-r--r-- | test/CodeGen/NVPTX/arithmetic-int.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/CodeGen/NVPTX/arithmetic-int.ll b/test/CodeGen/NVPTX/arithmetic-int.ll index b5a2872299b..e7c968c4c0b 100644 --- a/test/CodeGen/NVPTX/arithmetic-int.ll +++ b/test/CodeGen/NVPTX/arithmetic-int.ll @@ -29,6 +29,30 @@ define i64 @mul_i64(i64 %a, i64 %b) { ret i64 %ret } +define i64 @umul_lohi_i64(i64 %a) { +; CHECK-LABEL: umul_lohi_i64( +entry: + %0 = zext i64 %a to i128 + %1 = mul i128 %0, 288 +; CHECK: mul.lo.{{u|s}}64 +; CHECK: mul.hi.{{u|s}}64 + %2 = lshr i128 %1, 1 + %3 = trunc i128 %2 to i64 + ret i64 %3 +} + +define i64 @smul_lohi_i64(i64 %a) { +; CHECK-LABEL: smul_lohi_i64( +entry: + %0 = sext i64 %a to i128 + %1 = mul i128 %0, 288 +; CHECK: mul.lo.{{u|s}}64 +; CHECK: mul.hi.{{u|s}}64 + %2 = ashr i128 %1, 1 + %3 = trunc i128 %2 to i64 + ret i64 %3 +} + define i64 @sdiv_i64(i64 %a, i64 %b) { ; CHECK: div.s64 %rd{{[0-9]+}}, %rd{{[0-9]+}}, %rd{{[0-9]+}} ; CHECK: ret |