[PATCH] D61491: AMDGPU: Be explicit about whether the high-word in SI_PC_ADD_REL_OFFSET is 0
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Sun Jun 16 10:29:18 PDT 2019
This revision was automatically updated to reflect the committed changes.
Closed by commit rL363516: AMDGPU: Be explicit about whether the high-word in SI_PC_ADD_REL_OFFSET is 0 (authored by nha, committed by ).
Changed prior to commit:
https://reviews.llvm.org/D61491?vs=197959&id=204960#toc
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D61491/new/
https://reviews.llvm.org/D61491
Files:
llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp
llvm/trunk/lib/Target/AMDGPU/SIInstrInfo.cpp
llvm/trunk/lib/Target/AMDGPU/SIInstructions.td
llvm/trunk/test/CodeGen/AMDGPU/llvm.memcpy.ll
llvm/trunk/test/CodeGen/AMDGPU/no-initializer-constant-addrspace.ll
Index: llvm/trunk/test/CodeGen/AMDGPU/no-initializer-constant-addrspace.ll
===================================================================
--- llvm/trunk/test/CodeGen/AMDGPU/no-initializer-constant-addrspace.ll
+++ llvm/trunk/test/CodeGen/AMDGPU/no-initializer-constant-addrspace.ll
@@ -2,7 +2,7 @@
; RUN: llc -march=amdgcn -mcpu=tonga -filetype=obj < %s | llvm-readobj -r --symbols | FileCheck %s -check-prefix=GCN
; RUN: llc -march=r600 -mcpu=cypress -filetype=obj < %s | llvm-readobj -r --symbols | FileCheck %s -check-prefix=EG
-; GCN: R_AMDGPU_REL32 extern_const_addrspace
+; GCN: R_AMDGPU_REL32_LO extern_const_addrspace
; EG: R_AMDGPU_ABS32 extern_const_addrspace
; CHECK-DAG: Name: extern_const_addrspace
Index: llvm/trunk/test/CodeGen/AMDGPU/llvm.memcpy.ll
===================================================================
--- llvm/trunk/test/CodeGen/AMDGPU/llvm.memcpy.ll
+++ llvm/trunk/test/CodeGen/AMDGPU/llvm.memcpy.ll
@@ -333,7 +333,7 @@
; FUNC-LABEL: {{^}}test_memcpy_const_string_align4:
; SI: s_getpc_b64
-; SI: s_add_u32 s{{[0-9]+}}, s{{[0-9]+}}, hello.align4+20
+; SI: s_add_u32 s{{[0-9]+}}, s{{[0-9]+}}, hello.align4 at rel32@lo+20
; SI: s_addc_u32
; SI-DAG: s_load_dwordx4
; SI-DAG: s_load_dwordx4
Index: llvm/trunk/lib/Target/AMDGPU/SIInstrInfo.cpp
===================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIInstrInfo.cpp
+++ llvm/trunk/lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -1369,10 +1369,7 @@
MachineInstrBuilder MIB = BuildMI(MF, DL, get(AMDGPU::S_ADDC_U32), RegHi)
.addReg(RegHi);
- if (MI.getOperand(2).getTargetFlags() == SIInstrInfo::MO_NONE)
- MIB.addImm(0);
- else
- MIB.add(MI.getOperand(2));
+ MIB.add(MI.getOperand(2));
Bundler.append(MIB);
finalizeBundle(MBB, Bundler.begin());
Index: llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp
+++ llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -4644,11 +4644,18 @@
// of the s_add_u32 instruction, we end up with an offset that is 4 bytes too
// small. This requires us to add 4 to the global variable offset in order to
// compute the correct address.
- SDValue PtrLo = DAG.getTargetGlobalAddress(GV, DL, MVT::i32, Offset + 4,
- GAFlags);
- SDValue PtrHi = DAG.getTargetGlobalAddress(GV, DL, MVT::i32, Offset + 4,
- GAFlags == SIInstrInfo::MO_NONE ?
- GAFlags : GAFlags + 1);
+ unsigned LoFlags = GAFlags;
+ if (LoFlags == SIInstrInfo::MO_NONE)
+ LoFlags = SIInstrInfo::MO_REL32;
+ SDValue PtrLo =
+ DAG.getTargetGlobalAddress(GV, DL, MVT::i32, Offset + 4, LoFlags);
+ SDValue PtrHi;
+ if (GAFlags == SIInstrInfo::MO_NONE) {
+ PtrHi = DAG.getTargetConstant(0, DL, MVT::i32);
+ } else {
+ PtrHi =
+ DAG.getTargetGlobalAddress(GV, DL, MVT::i32, Offset + 4, GAFlags + 1);
+ }
return DAG.getNode(AMDGPUISD::PC_ADD_REL_OFFSET, DL, PtrVT, PtrLo, PtrHi);
}
Index: llvm/trunk/lib/Target/AMDGPU/SIInstructions.td
===================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIInstructions.td
+++ llvm/trunk/lib/Target/AMDGPU/SIInstructions.td
@@ -551,11 +551,16 @@
(outs SReg_64:$dst),
(ins si_ga:$ptr_lo, si_ga:$ptr_hi),
[(set SReg_64:$dst,
- (i64 (SIpc_add_rel_offset (tglobaladdr:$ptr_lo), (tglobaladdr:$ptr_hi))))]> {
+ (i64 (SIpc_add_rel_offset tglobaladdr:$ptr_lo, tglobaladdr:$ptr_hi)))]> {
let Defs = [SCC];
}
def : GCNPat <
+ (SIpc_add_rel_offset tglobaladdr:$ptr_lo, 0),
+ (SI_PC_ADD_REL_OFFSET $ptr_lo, (i32 0))
+>;
+
+def : GCNPat <
(AMDGPUinit_exec i64:$src),
(SI_INIT_EXEC (as_i64imm $src))
>;
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