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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-11-06 16:29:09 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-11-06 16:29:09 +0000 |
| commit | dd4809a6036f19e5e54d97af090911d2dcf21a0f (patch) | |
| tree | 912132d5df8f469ea1b8421082f85f7283845015 | |
| parent | c9467ed31ed4a48309c51a4bdac114970d26eeaf (diff) | |
| download | bcm5719-llvm-dd4809a6036f19e5e54d97af090911d2dcf21a0f.tar.gz bcm5719-llvm-dd4809a6036f19e5e54d97af090911d2dcf21a0f.zip | |
[SelectionDAG] Add support for vector demandedelts in OR opcodes
llvm-svn: 286071
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 6 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/known-bits-vector.ll | 12 |
2 files changed, 6 insertions, 12 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 98cd8190815..430f39d9b52 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -2142,8 +2142,10 @@ void SelectionDAG::computeKnownBits(SDValue Op, APInt &KnownZero, KnownZero |= KnownZero2; break; case ISD::OR: - computeKnownBits(Op.getOperand(1), KnownZero, KnownOne, Depth+1); - computeKnownBits(Op.getOperand(0), KnownZero2, KnownOne2, Depth+1); + computeKnownBits(Op.getOperand(1), KnownZero, KnownOne, DemandedElts, + Depth + 1); + computeKnownBits(Op.getOperand(0), KnownZero2, KnownOne2, DemandedElts, + Depth + 1); // Output known-0 bits are only known if clear in both the LHS & RHS. KnownZero &= KnownZero2; diff --git a/llvm/test/CodeGen/X86/known-bits-vector.ll b/llvm/test/CodeGen/X86/known-bits-vector.ll index feeb1725d0c..044070e0e90 100644 --- a/llvm/test/CodeGen/X86/known-bits-vector.ll +++ b/llvm/test/CodeGen/X86/known-bits-vector.ll @@ -96,11 +96,7 @@ define <4 x float> @knownbits_mask_or_shuffle_uitofp(<4 x i32> %a0) nounwind { ; X32-NEXT: vpand {{\.LCPI.*}}, %xmm0, %xmm0 ; X32-NEXT: vpor {{\.LCPI.*}}, %xmm0, %xmm0 ; X32-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[2,2,3,3] -; X32-NEXT: vpblendw {{.*#+}} xmm1 = xmm0[0],mem[1],xmm0[2],mem[3],xmm0[4],mem[5],xmm0[6],mem[7] -; X32-NEXT: vpsrld $16, %xmm0, %xmm0 -; X32-NEXT: vpblendw {{.*#+}} xmm0 = xmm0[0],mem[1],xmm0[2],mem[3],xmm0[4],mem[5],xmm0[6],mem[7] -; X32-NEXT: vaddps {{\.LCPI.*}}, %xmm0, %xmm0 -; X32-NEXT: vaddps %xmm0, %xmm1, %xmm0 +; X32-NEXT: vcvtdq2ps %xmm0, %xmm0 ; X32-NEXT: retl ; ; X64-LABEL: knownbits_mask_or_shuffle_uitofp: @@ -108,11 +104,7 @@ define <4 x float> @knownbits_mask_or_shuffle_uitofp(<4 x i32> %a0) nounwind { ; X64-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0 ; X64-NEXT: vpor {{.*}}(%rip), %xmm0, %xmm0 ; X64-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[2,2,3,3] -; X64-NEXT: vpblendw {{.*#+}} xmm1 = xmm0[0],mem[1],xmm0[2],mem[3],xmm0[4],mem[5],xmm0[6],mem[7] -; X64-NEXT: vpsrld $16, %xmm0, %xmm0 -; X64-NEXT: vpblendw {{.*#+}} xmm0 = xmm0[0],mem[1],xmm0[2],mem[3],xmm0[4],mem[5],xmm0[6],mem[7] -; X64-NEXT: vaddps {{.*}}(%rip), %xmm0, %xmm0 -; X64-NEXT: vaddps %xmm0, %xmm1, %xmm0 +; X64-NEXT: vcvtdq2ps %xmm0, %xmm0 ; X64-NEXT: retq %1 = and <4 x i32> %a0, <i32 -1, i32 -1, i32 255, i32 4085> %2 = or <4 x i32> %1, <i32 65535, i32 65535, i32 65535, i32 65535> |
