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DAG: Fix vector widening fcanonicalize

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llvm-svn: 338715
This commit is contained in:
Matt Arsenault 2018-08-02 13:43:53 +00:00
parent 5e71c6a155
commit 6d0accb5a3
2 changed files with 21 additions and 0 deletions
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1
lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
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@ -2394,6 +2394,7 @@ void DAGTypeLegalizer::WidenVectorResult(SDNode *N, unsigned ResNo) {
case ISD::FSIN:
case ISD::FSQRT:
case ISD::FTRUNC:
case ISD::FCANONICALIZE:
Res = WidenVecRes_Unary(N);
break;
case ISD::FMA:

20
test/CodeGen/AMDGPU/fcanonicalize.f16.ll
View File

@ -6,6 +6,7 @@ declare half @llvm.fabs.f16(half) #0
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
declare <3 x half> @llvm.canonicalize.v3f16(<3 x half>) #0
declare <4 x half> @llvm.canonicalize.v4f16(<4 x half>) #0
declare i32 @llvm.amdgcn.workitem.id.x() #0
@ -477,6 +478,25 @@ define amdgpu_kernel void @test_fold_canonicalize_snan3_value_v2f16(<2 x half> a
ret void
}
; FIXME: Extra 4th component handled
; GCN-LABEL: {{^}}v_test_canonicalize_var_v3f16:
; GFX9: s_waitcnt
; GFX9-NEXT: v_pk_max_f16 v1, v1, v1
; GFX9-NEXT: v_pk_max_f16 v0, v0, v0
; GFX9-NEXT: s_setpc_b64
; VI-DAG: v_max_f16_sdwa [[CANON_ELT3:v[0-9]+]], v1, v1 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
; VI-DAG: v_max_f16_e32 [[CANON_ELT2:v[0-9]+]], v1, v1
; VI-DAG: v_max_f16_sdwa [[CANON_ELT1:v[0-9]+]], v0, v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
; VI-DAG: v_max_f16_e32 [[CANON_ELT0:v[0-9]+]], v0, v0
; VI-DAG: v_or_b32_e32 v0, [[CANON_ELT0]], [[CANON_ELT1]]
; VI-DAG: v_or_b32_e32 v1, [[CANON_ELT2]], [[CANON_ELT3]]
; VI: s_setpc_b64
define <3 x half> @v_test_canonicalize_var_v3f16(<3 x half> %val) #1 {
%canonicalized = call <3 x half> @llvm.canonicalize.v3f16(<3 x half> %val)
ret <3 x half> %canonicalized
}
; GCN-LABEL: {{^}}v_test_canonicalize_var_v4f16:
; GFX9: s_waitcnt
; GFX9-NEXT: v_pk_max_f16 v0, v0, v0