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[AArch64] Expand vector SDIVREM/UDIVREM operations. 

http://reviews.llvm.org/D15214
Patch by Ana Pazos <apazos@codeaurora.org>!

llvm-svn: 254773
This commit is contained in:
Chad Rosier 2015-12-04 21:38:44 +00:00
parent efadacfb14
commit f3491496dc
2 changed files with 26 additions and 0 deletions
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4
llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
View File

@ -237,6 +237,10 @@ AArch64TargetLowering::AArch64TargetLowering(const TargetMachine &TM,
setOperationAction(ISD::SDIVREM, MVT::i32, Expand);
setOperationAction(ISD::SDIVREM, MVT::i64, Expand);
for (MVT VT : MVT::vector_valuetypes()) {
setOperationAction(ISD::SDIVREM, VT, Expand);
setOperationAction(ISD::UDIVREM, VT, Expand);
}
setOperationAction(ISD::SREM, MVT::i32, Expand);
setOperationAction(ISD::SREM, MVT::i64, Expand);
setOperationAction(ISD::UDIVREM, MVT::i32, Expand);

22
llvm/test/CodeGen/AArch64/divrem.ll Normal file
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@ -0,0 +1,22 @@
; RUN: llc -mtriple=aarch64-none-linux-gnu < %s -mattr=+neon | FileCheck %s
; SDIVREM/UDIVREM DAG nodes are generated but expanded when lowering and
; should not generate select error.
define <2 x i32> @test_udivrem(<2 x i32> %x, < 2 x i32> %y, < 2 x i32>* %z) {
; CHECK-LABEL: test_udivrem
; CHECK-DAG: udivrem
; CHECK-NOT: LLVM ERROR: Cannot select
%div = udiv <2 x i32> %x, %y
store <2 x i32> %div, <2 x i32>* %z
%1 = urem <2 x i32> %x, %y
ret <2 x i32> %1
}
define <4 x i32> @test_sdivrem(<4 x i32> %x, <4 x i32>* %y) {
; CHECK-LABEL: test_sdivrem
; CHECK-DAG: sdivrem
%div = sdiv <4 x i32> %x, < i32 20, i32 20, i32 20, i32 20 >
store <4 x i32> %div, <4 x i32>* %y
%1 = srem <4 x i32> %x, < i32 20, i32 20, i32 20, i32 20 >
ret <4 x i32> %1
}