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| author | Sam Parker <sam.parker@arm.com> | 2016-06-20 16:47:09 +0000 |
|---|---|---|
| committer | Sam Parker <sam.parker@arm.com> | 2016-06-20 16:47:09 +0000 |
| commit | a02f69b1c10ad38d6f9e6f1cf189d6279df7227a (patch) | |
| tree | e7cc15e7e9d1e8d87712fb7b1ca98706f519c06d /test/CodeGen/ARM/longMAC.ll | |
| parent | 5b2db1b4cc404a3fc6bf9075087b73406683e2cf (diff) | |
[ARM] Enable isel of UMAAL
TargetLowering and DAGToDAG are used to combine ADDC, ADDE and UMLAL
dags into UMAAL. Selection is split into the two phases because it
is easier to match the two patterns at those different times.
Differential Revision: http://http://reviews.llvm.org/D21461
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273165 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM/longMAC.ll')
| -rw-r--r-- | test/CodeGen/ARM/longMAC.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/longMAC.ll b/test/CodeGen/ARM/longMAC.ll index 3f30fd40b7e..cc2d745aae8 100644 --- a/test/CodeGen/ARM/longMAC.ll +++ b/test/CodeGen/ARM/longMAC.ll @@ -116,3 +116,32 @@ define i64 @MACLongTest8(i64 %acc, i32 %lhs, i32 %rhs) { ret i64 %add } +define i64 @MACLongTest9(i32 %lhs, i32 %rhs, i32 %lo, i32 %hi) { +;CHECK-LABEL: MACLongTest9: +;CHECK-V7-LE:umaal +;CHECK-V7-BE:umaal +;CHECK-NOT:umaal + %conv = zext i32 %lhs to i64 + %conv1 = zext i32 %rhs to i64 + %mul = mul nuw i64 %conv1, %conv + %conv2 = zext i32 %lo to i64 + %add = add i64 %mul, %conv2 + %conv3 = zext i32 %hi to i64 + %add2 = add i64 %add, %conv3 + ret i64 %add2 +} + +define i64 @MACLongTest10(i32 %lhs, i32 %rhs, i32 %lo, i32 %hi) { +;CHECK-LABEL: MACLongTest10: +;CHECK-V7-LE:umaal +;CHECK-V7-BE:umaal +;CHECK-NOT:umaal + %conv = zext i32 %lhs to i64 + %conv1 = zext i32 %rhs to i64 + %mul = mul nuw i64 %conv1, %conv + %conv2 = zext i32 %lo to i64 + %conv3 = zext i32 %hi to i64 + %add = add i64 %conv2, %conv3 + %add2 = add i64 %add, %mul + ret i64 %add2 +} |