From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Mon, 23 Jan 2017 18:52:26 +0000 (+0000)
Subject: DAG: Allow legalization of fcanonicalize vector types
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=41e0c1e88edded40c5c8015888dbef5091c90129;p=llvm

DAG: Allow legalization of fcanonicalize vector types

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292814 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
index 27a9ac337f2..df7846cb574 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
@@ -97,6 +97,7 @@ void DAGTypeLegalizer::ScalarizeVectorResult(SDNode *N, unsigned ResNo) {
   case ISD::TRUNCATE:
   case ISD::UINT_TO_FP:
   case ISD::ZERO_EXTEND:
+  case ISD::FCANONICALIZE:
     R = ScalarizeVecRes_UnaryOp(N);
     break;
 
@@ -637,6 +638,7 @@ void DAGTypeLegalizer::SplitVectorResult(SDNode *N, unsigned ResNo) {
   case ISD::SINT_TO_FP:
   case ISD::TRUNCATE:
   case ISD::UINT_TO_FP:
+  case ISD::FCANONICALIZE:
     SplitVecRes_UnaryOp(N, Lo, Hi);
     break;
 
@@ -1466,6 +1468,7 @@ bool DAGTypeLegalizer::SplitVectorOperand(SDNode *N, unsigned OpNo) {
     case ISD::ZERO_EXTEND:
     case ISD::ANY_EXTEND:
     case ISD::FTRUNC:
+    case ISD::FCANONICALIZE:
       Res = SplitVecOp_UnaryOp(N);
       break;
     }
diff --git a/test/CodeGen/AMDGPU/fcanonicalize.f16.ll b/test/CodeGen/AMDGPU/fcanonicalize.f16.ll
index fb693de0e39..aa0d6cb1067 100644
--- a/test/CodeGen/AMDGPU/fcanonicalize.f16.ll
+++ b/test/CodeGen/AMDGPU/fcanonicalize.f16.ll
@@ -1,6 +1,8 @@
 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
 
 declare half @llvm.canonicalize.f16(half) #0
+declare <2 x half> @llvm.fabs.v2f16(<2 x half>) #0
+declare <2 x half> @llvm.canonicalize.v2f16(<2 x half>) #0
 
 ; GCN-LABEL: {{^}}v_test_canonicalize_var_f16:
 ; GCN: v_mul_f16_e32 [[REG:v[0-9]+]], 1.0, {{v[0-9]+}}
@@ -166,6 +168,218 @@ define void @test_fold_canonicalize_snan3_value_f16(half addrspace(1)* %out) #1
   ret void
 }
 
+; GCN-LABEL: {{^}}v_test_canonicalize_var_v2f16:
+; GCN: v_mul_f16_e32 [[REG0:v[0-9]+]], 1.0, {{v[0-9]+}}
+; GCN: v_mul_f16_e32 [[REG1:v[0-9]+]], 1.0, {{v[0-9]+}}
+; GCN: v_lshlrev_b32_e32 v{{[0-9]+}}, 16,
+define void @v_test_canonicalize_var_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %val = load <2 x half>, <2 x half> addrspace(1)* %out
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> %val)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; FIXME: Fold modifier
+; GCN-LABEL: {{^}}v_test_canonicalize_fabs_var_v2f16:
+; GCN: v_bfe_u32
+; GCN: v_and_b32_e32 v{{[0-9]+}}, 0x7fff7fff, v{{[0-9]+}}
+; GCN: v_mul_f16_e32 [[REG0:v[0-9]+]], 1.0, v{{[0-9]+}}
+; GCN: v_mul_f16_e32 [[REG1:v[0-9]+]], 1.0, v{{[0-9]+}}
+; GCN: v_or_b32
+; GCN: buffer_store_dword
+define void @v_test_canonicalize_fabs_var_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %val = load <2 x half>, <2 x half> addrspace(1)* %out
+  %val.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %val)
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> %val.fabs)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}v_test_canonicalize_fneg_fabs_var_v2f16:
+; GCN: v_or_b32_e32 v{{[0-9]+}}, 0x80008000, v{{[0-9]+}}
+; GCN: v_mul_f16_e32 [[REG0:v[0-9]+]], 1.0, v{{[0-9]+}}
+; GCN: v_mul_f16_e32 [[REG1:v[0-9]+]], 1.0, v{{[0-9]+}}
+; GCN: v_or_b32
+; GCN: buffer_store_dword
+define void @v_test_canonicalize_fneg_fabs_var_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %val = load <2 x half>, <2 x half> addrspace(1)* %out
+  %val.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %val)
+  %val.fabs.fneg = fsub <2 x half> <half -0.0, half -0.0>, %val.fabs
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> %val.fabs.fneg)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; FIXME: Fold modifier
+; GCN-LABEL: {{^}}v_test_canonicalize_fneg_var_v2f16:
+; GCN: v_xor_b32_e32 [[FNEG:v[0-9]+]], 0x80008000, v{{[0-9]+}}
+; GCN: v_lshrrev_b32_e32 [[FNEG_HI:v[0-9]+]], 16, [[FNEG]]
+; GCN: v_mul_f16_e32 [[REG0:v[0-9]+]], 1.0, [[FNEG]]
+; GCN: v_mul_f16_e32 [[REG1:v[0-9]+]], 1.0, [[FNEG_HI]]
+; GCN: v_lshlrev_b32_e32 v{{[0-9]+}}, 16,
+define void @v_test_canonicalize_fneg_var_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %val = load <2 x half>, <2 x half> addrspace(1)* %out
+  %fneg.val = fsub <2 x half> <half -0.0, half -0.0>, %val
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> %fneg.val)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}s_test_canonicalize_var_v2f16:
+; GCN: v_mul_f16_e64 [[REG0:v[0-9]+]], 1.0, {{s[0-9]+}}
+; GCN: v_mul_f16_e64 [[REG1:v[0-9]+]], 1.0, {{s[0-9]+}}
+; GCN: v_lshlrev_b32_e32 v{{[0-9]+}}, 16,
+define void @s_test_canonicalize_var_v2f16(<2 x half> addrspace(1)* %out, i32 zeroext %val.arg) #1 {
+  %val = bitcast i32 %val.arg to <2 x half>
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> %val)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_p0_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_p0_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> zeroinitializer)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_n0_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x80008000{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_n0_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half -0.0, half -0.0>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_p1_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x3c003c00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_p1_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 1.0, half 1.0>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_n1_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0xbc00bc00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_n1_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half -1.0, half -1.0>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_literal_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x4c004c00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_literal_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 16.0, half 16.0>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_no_denormals_fold_canonicalize_denormal0_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_no_denormals_fold_canonicalize_denormal0_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 0xH03FF, half 0xH03FF>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_denormals_fold_canonicalize_denormal0_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x3ff03ff{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_denormals_fold_canonicalize_denormal0_v2f16(<2 x half> addrspace(1)* %out) #3 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 0xH03FF, half 0xH03FF>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_no_denormals_fold_canonicalize_denormal1_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_no_denormals_fold_canonicalize_denormal1_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 0xH83FF, half 0xH83FF>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_denormals_fold_canonicalize_denormal1_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x83ff83ff{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_denormals_fold_canonicalize_denormal1_v2f16(<2 x half> addrspace(1)* %out) #3 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 0xH83FF, half 0xH83FF>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_qnan_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x7c007c00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_qnan_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 0xH7C00, half 0xH7C00>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_qnan_value_neg1_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x7e007e00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_qnan_value_neg1_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> bitcast (i32 -1 to <2 x half>))
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_qnan_value_neg2_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x7e007e00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_qnan_value_neg2_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half bitcast (i16 -2 to half), half bitcast (i16 -2 to half)>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_snan0_value_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x7e007e00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_snan0_value_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 0xH7C01, half 0xH7C01>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_snan1_value_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x7e007e00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_snan1_value_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 0xH7DFF, half 0xH7DFF>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_snan2_value_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x7e007e00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_snan2_value_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 0xHFDFF, half 0xHFDFF>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
+; GCN-LABEL: {{^}}test_fold_canonicalize_snan3_value_v2f16:
+; GCN: v_mov_b32_e32 [[REG:v[0-9]+]], 0x7e007e00{{$}}
+; GCN: buffer_store_dword [[REG]]
+define void @test_fold_canonicalize_snan3_value_v2f16(<2 x half> addrspace(1)* %out) #1 {
+  %canonicalized = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> <half 0xHFC01, half 0xHFC01>)
+  store <2 x half> %canonicalized, <2 x half> addrspace(1)* %out
+  ret void
+}
+
 attributes #0 = { nounwind readnone }
 attributes #1 = { nounwind }
 attributes #2 = { nounwind "target-features"="-fp16-denormals,-fp16-denormals" }