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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 | 585ec8671dd5eb52ab0628611e550edd4ee532dc (patch) | |
| tree | 05bec92f6830ae36ab92b098169f5fb406266d95 /llvm/test | |
| parent | d5607d35d4f170a8d95a61ef1ee4c37343df0e26 (diff) | |
| download | bcm5719-llvm-585ec8671dd5eb52ab0628611e550edd4ee532dc.tar.gz bcm5719-llvm-585ec8671dd5eb52ab0628611e550edd4ee532dc.zip | |
[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
llvm-svn: 258536
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/NVPTX/arithmetic-int.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/NVPTX/arithmetic-int.ll b/llvm/test/CodeGen/NVPTX/arithmetic-int.ll index b5a2872299b..e7c968c4c0b 100644 --- a/llvm/test/CodeGen/NVPTX/arithmetic-int.ll +++ b/llvm/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 |
