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AMDGPU/GlobalISel: Basic G_GEP legality 

llvm-svn: 327773
This commit is contained in:
Matt Arsenault 2018-03-17 15:17:45 +00:00
parent 85803366d6
commit 685d1e8157
2 changed files with 109 additions and 3 deletions
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20
llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
View File

@ -32,6 +32,8 @@ AMDGPULegalizerInfo::AMDGPULegalizerInfo(const SISubtarget &ST,
return LLT::pointer(AS, TM.getPointerSizeInBits(AS));
};
auto AMDGPUAS = ST.getAMDGPUAS();
const LLT S1 = LLT::scalar(1);
const LLT V2S16 = LLT::vector(2, 16);
@ -40,7 +42,17 @@ AMDGPULegalizerInfo::AMDGPULegalizerInfo(const SISubtarget &ST,
const LLT GlobalPtr = GetAddrSpacePtr(AMDGPUAS::GLOBAL_ADDRESS);
const LLT ConstantPtr = GetAddrSpacePtr(AMDGPUAS::CONSTANT_ADDRESS);
const LLT LocalPtr = GetAddrSpacePtr(AMDGPUAS::LOCAL_ADDRESS);
const LLT FlatPtr = GetAddrSpacePtr(AMDGPUAS.FLAT_ADDRESS);
const LLT PrivatePtr = GetAddrSpacePtr(AMDGPUAS.PRIVATE_ADDRESS);
const LLT AddrSpaces[] = {
GlobalPtr,
ConstantPtr,
LocalPtr,
FlatPtr,
PrivatePtr
};
setAction({G_ADD, S32}, Legal);
setAction({G_MUL, S32}, Legal);
@ -84,9 +96,11 @@ AMDGPULegalizerInfo::AMDGPULegalizerInfo(const SISubtarget &ST,
setAction({G_FPTOUI, S32}, Legal);
setAction({G_FPTOUI, 1, S32}, Legal);
setAction({G_GEP, GlobalPtr}, Legal);
setAction({G_GEP, ConstantPtr}, Legal);
setAction({G_GEP, 1, S64}, Legal);
for (LLT PtrTy : AddrSpaces) {
LLT IdxTy = LLT::scalar(PtrTy.getSizeInBits());
setAction({G_GEP, PtrTy}, Legal);
setAction({G_GEP, 1, IdxTy}, Legal);
}
setAction({G_ICMP, S1}, Legal);
setAction({G_ICMP, 1, S32}, Legal);

92
llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-gep.mir Normal file
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@ -0,0 +1,92 @@
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=fiji -O0 -run-pass=legalizer -global-isel %s -o - | FileCheck %s
---
name: test_gep_global_i64_idx
body: |
bb.0:
liveins: $vgpr0_vgpr1, $vgpr2_vgpr3
; CHECK-LABEL: name: test_gep_global_i64_idx
; CHECK: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $vgpr2_vgpr3
; CHECK: [[GEP:%[0-9]+]]:_(p1) = G_GEP [[COPY]], [[COPY1]](s64)
; CHECK: $vgpr0_vgpr1 = COPY [[GEP]](p1)
%0:_(p1) = COPY $vgpr0_vgpr1
%1:_(s64) = COPY $vgpr2_vgpr3
%2:_(p1) = G_GEP %0, %1
$vgpr0_vgpr1 = COPY %2
...
---
name: test_gep_flat_i64_idx
body: |
bb.0:
liveins: $vgpr0_vgpr1, $vgpr2_vgpr3
; CHECK-LABEL: name: test_gep_flat_i64_idx
; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $vgpr2_vgpr3
; CHECK: [[GEP:%[0-9]+]]:_(p0) = G_GEP [[COPY]], [[COPY1]](s64)
; CHECK: $vgpr0_vgpr1 = COPY [[GEP]](p0)
%0:_(p0) = COPY $vgpr0_vgpr1
%1:_(s64) = COPY $vgpr2_vgpr3
%2:_(p0) = G_GEP %0, %1
$vgpr0_vgpr1 = COPY %2
...
---
name: test_gep_constant_i64_idx
body: |
bb.0:
liveins: $vgpr0_vgpr1, $vgpr2_vgpr3
; CHECK-LABEL: name: test_gep_constant_i64_idx
; CHECK: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $vgpr2_vgpr3
; CHECK: [[GEP:%[0-9]+]]:_(p4) = G_GEP [[COPY]], [[COPY1]](s64)
; CHECK: $vgpr0_vgpr1 = COPY [[GEP]](p4)
%0:_(p4) = COPY $vgpr0_vgpr1
%1:_(s64) = COPY $vgpr2_vgpr3
%2:_(p4) = G_GEP %0, %1
$vgpr0_vgpr1 = COPY %2
...
---
name: test_gep_local_i32_idx
body: |
bb.0:
liveins: $vgpr0, $vgpr1
; CHECK-LABEL: name: test_gep_local_i32_idx
; CHECK: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; CHECK: [[GEP:%[0-9]+]]:_(p3) = G_GEP [[COPY]], [[COPY1]](s32)
; CHECK: $vgpr0 = COPY [[GEP]](p3)
%0:_(p3) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(p3) = G_GEP %0, %1
$vgpr0 = COPY %2
...
---
name: test_gep_private_i32_idx
body: |
bb.0:
liveins: $vgpr0, $vgpr1
; CHECK-LABEL: name: test_gep_private_i32_idx
; CHECK: [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; CHECK: [[GEP:%[0-9]+]]:_(p5) = G_GEP [[COPY]], [[COPY1]](s32)
; CHECK: $vgpr0 = COPY [[GEP]](p5)
%0:_(p5) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(p5) = G_GEP %0, %1
$vgpr0 = COPY %2
...