2019-05-02 00:32:58 +08:00
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; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck -check-prefixes=GCN,UNPACKED,GFX89 %s
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; RUN: llc < %s -march=amdgcn -mcpu=gfx810 -verify-machineinstrs | FileCheck -check-prefixes=GCN,PACKED,GFX81,GFX89 %s
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; RUN: llc < %s -march=amdgcn -mcpu=gfx900 -verify-machineinstrs | FileCheck -check-prefixes=GCN,PACKED,GFX9,GFX89 %s
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; RUN: llc < %s -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs | FileCheck -check-prefixes=GCN,GFX10 %s
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AMDGPU: Dimension-aware image intrinsics
Summary:
These new image intrinsics contain the texture type as part of
their name and have each component of the address/coordinate as
individual parameters.
This is a preparatory step for implementing the A16 feature, where
coordinates are passed as half-floats or -ints, but the Z compare
value and texel offsets are still full dwords, making it difficult
or impossible to distinguish between A16 on or off in the old-style
intrinsics.
Additionally, these intrinsics pass the 'texfailpolicy' and
'cachectrl' as i32 bit fields to reduce operand clutter and allow
for future extensibility.
v2:
- gather4 supports 2darray images
- fix a bug with 1D images on SI
Change-Id: I099f309e0a394082a5901ea196c3967afb867f04
Reviewers: arsenm, rampitec, b-sumner
Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, llvm-commits, t-tye
Differential Revision: https://reviews.llvm.org/D44939
llvm-svn: 329166
2018-04-04 18:58:54 +08:00
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; GCN-LABEL: {{^}}image_gather4_b_2d_v4f16:
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; UNPACKED: image_gather4_b v[0:3], v[0:3], s[0:7], s[8:11] dmask:0x4 d16{{$}}
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; PACKED: image_gather4_b v[0:1], v[0:3], s[0:7], s[8:11] dmask:0x4 d16{{$}}
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2019-05-02 00:32:58 +08:00
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; GFX10: image_gather4_b v[0:1], v[0:2], s[0:7], s[8:11] dmask:0x4 dim:SQ_RSRC_IMG_2D d16{{$}}
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AMDGPU: Dimension-aware image intrinsics
Summary:
These new image intrinsics contain the texture type as part of
their name and have each component of the address/coordinate as
individual parameters.
This is a preparatory step for implementing the A16 feature, where
coordinates are passed as half-floats or -ints, but the Z compare
value and texel offsets are still full dwords, making it difficult
or impossible to distinguish between A16 on or off in the old-style
intrinsics.
Additionally, these intrinsics pass the 'texfailpolicy' and
'cachectrl' as i32 bit fields to reduce operand clutter and allow
for future extensibility.
v2:
- gather4 supports 2darray images
- fix a bug with 1D images on SI
Change-Id: I099f309e0a394082a5901ea196c3967afb867f04
Reviewers: arsenm, rampitec, b-sumner
Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, llvm-commits, t-tye
Differential Revision: https://reviews.llvm.org/D44939
llvm-svn: 329166
2018-04-04 18:58:54 +08:00
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define amdgpu_ps <2 x float> @image_gather4_b_2d_v4f16(<8 x i32> inreg %rsrc, <4 x i32> inreg %samp, float %bias, float %s, float %t) {
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main_body:
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%tex = call <4 x half> @llvm.amdgcn.image.gather4.b.2d.v4f16.f32.f32(i32 4, float %bias, float %s, float %t, <8 x i32> %rsrc, <4 x i32> %samp, i1 false, i32 0, i32 0)
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%r = bitcast <4 x half> %tex to <2 x float>
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ret <2 x float> %r
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}
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declare <4 x half> @llvm.amdgcn.image.gather4.b.2d.v4f16.f32.f32(i32, float, float, float, <8 x i32>, <4 x i32>, i1, i32, i32) #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readonly }
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attributes #2 = { nounwind readnone }
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