diff options
| author | Nadav Rotem <nrotem@apple.com> | 2012-11-05 21:11:10 +0000 |
|---|---|---|
| committer | Nadav Rotem <nrotem@apple.com> | 2012-11-05 21:11:10 +0000 |
| commit | 75138f58b0abaff54270481e879bc770df88114c (patch) | |
| tree | 6087626bcd7bc842cc0cc8304e7741dbc2bb2508 | |
| parent | 28989889bf3aa3314562d438aece245b71176ec4 (diff) | |
Cost Model: teach the cost model about expanding integers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167401 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/TargetTransformImpl.cpp | 5 | ||||
| -rw-r--r-- | test/Analysis/CostModel/X86/i32.ll | 9 |
2 files changed, 12 insertions, 2 deletions
diff --git a/lib/Target/TargetTransformImpl.cpp b/lib/Target/TargetTransformImpl.cpp index a9f02edaae..4b427a2b6d 100644 --- a/lib/Target/TargetTransformImpl.cpp +++ b/lib/Target/TargetTransformImpl.cpp @@ -143,7 +143,8 @@ VectorTargetTransformImpl::getTypeLegalizationCost(LLVMContext &C, if (LK.first == TargetLowering::TypeLegal) return std::make_pair(Cost, Ty.getSimpleVT()); - if (LK.first == TargetLowering::TypeSplitVector) + if (LK.first == TargetLowering::TypeSplitVector || + LK.first == TargetLowering::TypeExpandInteger) Cost *= 2; // Keep legalizing the type. @@ -300,7 +301,7 @@ unsigned VectorTargetTransformImpl::getCmpSelInstrCost(unsigned Opcode, unsigned Cost = getCmpSelInstrCost(Opcode, ValTy->getScalarType(), CondTy); - // return the cost of multiple scalar invocation plus the cost of inserting + // Return the cost of multiple scalar invocation plus the cost of inserting // and extracting the values. return getScalarizationOverhead(ValTy, true, false) + Num * Cost; } diff --git a/test/Analysis/CostModel/X86/i32.ll b/test/Analysis/CostModel/X86/i32.ll new file mode 100644 index 0000000000..4015e0b1ee --- /dev/null +++ b/test/Analysis/CostModel/X86/i32.ll @@ -0,0 +1,9 @@ +; RUN: opt < %s -cost-model -analyze -mtriple=i386 -mcpu=corei7-avx | FileCheck %s + + +;CHECK: cost of 2 {{.*}} add +;CHECK: cost of 1 {{.*}} ret +define i32 @no_info(i32 %arg) { + %e = add i64 undef, undef + ret i32 undef +} |