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AMDGPU/GlobalISel: Make some G_EXTRACTs legal

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As far as I can tell legalization of weird sizes for the
output type isn't implemented.

llvm-svn: 326714
This commit is contained in:
Matt Arsenault 2018-03-05 16:25:15 +00:00
parent 3109b97b5d
commit 4dc52d1fa3
2 changed files with 117 additions and 0 deletions
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12
lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
View File

@ -106,5 +106,17 @@ AMDGPULegalizerInfo::AMDGPULegalizerInfo() {
setAction({G_LOAD, 1, S64}, Legal);
setAction({G_STORE, 1, S64}, Legal);
// FIXME: Doesn't handle extract of illegal sizes.
getActionDefinitionsBuilder(G_EXTRACT)
.unsupportedIf([=](const LegalityQuery &Query) {
return Query.Types[0].getSizeInBits() >= Query.Types[1].getSizeInBits();
})
.legalIf([=](const LegalityQuery &Query) {
const LLT &Ty0 = Query.Types[0];
const LLT &Ty1 = Query.Types[1];
return (Ty0.getSizeInBits() % 32 == 0) &&
(Ty1.getSizeInBits() % 32 == 0);
});
computeTables();
}

105
test/CodeGen/AMDGPU/GlobalISel/legalize-extract.mir Normal file
View File

@ -0,0 +1,105 @@
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=fiji -run-pass=legalizer -global-isel %s -o - | FileCheck %s
---
name: test_extract_lo32_i64
body: |
bb.0.entry:
liveins: $vgpr0_vgpr1
; CHECK-LABEL: name: test_extract_lo32_i64
; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
; CHECK: [[EXTRACT:%[0-9]+]]:_(s32) = G_EXTRACT [[COPY]](s64), 0
; CHECK: S_ENDPGM implicit [[EXTRACT]](s32)
%0:_(s64) = COPY $vgpr0_vgpr1
%1:_(s32) = G_EXTRACT %0, 0
S_ENDPGM implicit %1
...
---
name: test_extract_hi32_i64
body: |
bb.0.entry:
liveins: $vgpr0_vgpr1
; CHECK-LABEL: name: test_extract_hi32_i64
; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
; CHECK: [[EXTRACT:%[0-9]+]]:_(s32) = G_EXTRACT [[COPY]](s64), 32
; CHECK: S_ENDPGM implicit [[EXTRACT]](s32)
%0:_(s64) = COPY $vgpr0_vgpr1
%1:_(s32) = G_EXTRACT %0, 32
S_ENDPGM implicit %1
...
---
name: test_extract_dword0_i128
body: |
bb.0.entry:
liveins: $vgpr0_vgpr1
; CHECK-LABEL: name: test_extract_dword0_i128
; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
; CHECK: [[EXTRACT:%[0-9]+]]:_(s32) = G_EXTRACT [[COPY]](s64), 0
; CHECK: S_ENDPGM implicit [[EXTRACT]](s32)
%0:_(s64) = COPY $vgpr0_vgpr1
%1:_(s32) = G_EXTRACT %0, 0
S_ENDPGM implicit %1
...
---
name: test_extract_dword1_i128
body: |
bb.0.entry:
liveins: $vgpr0_vgpr1_vgpr2_vgpr3
; CHECK-LABEL: name: test_extract_dword1_i128
; CHECK: [[COPY:%[0-9]+]]:_(s128) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
; CHECK: [[EXTRACT:%[0-9]+]]:_(s32) = G_EXTRACT [[COPY]](s128), 32
; CHECK: S_ENDPGM implicit [[EXTRACT]](s32)
%0:_(s128) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
%1:_(s32) = G_EXTRACT %0, 32
S_ENDPGM implicit %1
...
---
name: test_extract_dword2_i128
body: |
bb.0.entry:
liveins: $vgpr0_vgpr1_vgpr2_vgpr3
; CHECK-LABEL: name: test_extract_dword2_i128
; CHECK: [[COPY:%[0-9]+]]:_(s128) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
; CHECK: [[EXTRACT:%[0-9]+]]:_(s32) = G_EXTRACT [[COPY]](s128), 64
; CHECK: S_ENDPGM implicit [[EXTRACT]](s32)
%0:_(s128) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
%1:_(s32) = G_EXTRACT %0, 64
S_ENDPGM implicit %1
...
---
name: test_extract_dword3_i128
body: |
bb.0.entry:
liveins: $vgpr0_vgpr1_vgpr2_vgpr3
; CHECK-LABEL: name: test_extract_dword3_i128
; CHECK: [[COPY:%[0-9]+]]:_(s128) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
; CHECK: [[EXTRACT:%[0-9]+]]:_(s32) = G_EXTRACT [[COPY]](s128), 96
; CHECK: S_ENDPGM implicit [[EXTRACT]](s32)
%0:_(s128) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
%1:_(s32) = G_EXTRACT %0, 96
S_ENDPGM implicit %1
...
---
name: test_extract_dword2_i96
body: |
bb.0.entry:
liveins: $vgpr0_vgpr1_vgpr2
; CHECK-LABEL: name: test_extract_dword2_i96
; CHECK: [[COPY:%[0-9]+]]:_(s96) = COPY $vgpr0_vgpr1_vgpr2
; CHECK: [[EXTRACT:%[0-9]+]]:_(s32) = G_EXTRACT [[COPY]](s96), 64
; CHECK: S_ENDPGM implicit [[EXTRACT]](s32)
%0:_(s96) = COPY $vgpr0_vgpr1_vgpr2
%1:_(s32) = G_EXTRACT %0, 64
S_ENDPGM implicit %1
...