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R600/SI: Remove assertion in SIInstrInfo::areLoadsFromSameBasePtr()

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Added a FIXME coment instead, we need to handle the case where the
two DS instructions being compared have different numbers of operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219236 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2014-10-07 21:09:20 +00:00
parent 63cdf9f8da
commit b8fee4f1d9
2 changed files with 22 additions and 1 deletions
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5
lib/Target/R600/SIInstrInfo.cpp
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@ -88,7 +88,10 @@ bool SIInstrInfo::areLoadsFromSameBasePtr(SDNode *Load0, SDNode *Load1,
return false;
if (isDS(Opc0) && isDS(Opc1)) {
assert(getNumOperandsNoGlue(Load0) == getNumOperandsNoGlue(Load1));
// FIXME: Handle this case:
if (getNumOperandsNoGlue(Load0) != getNumOperandsNoGlue(Load1))
return false;
// Check base reg.
if (Load0->getOperand(1) != Load1->getOperand(1))

18
test/CodeGen/R600/load.ll
View File

@ -701,3 +701,21 @@ entry:
store <2 x float> %0, <2 x float> addrspace(1)* %out
ret void
}
; Test loading a i32 and v2i32 value from the same base pointer.
; FUNC-LABEL: {{^}}load_i32_v2i32_local:
; R600-CHECK: LDS_READ_RET
; R600-CHECK: LDS_READ_RET
; R600-CHECK: LDS_READ_RET
; SI-CHECK-DAG: DS_READ_B32
; SI-CHECK-DAG: DS_READ2_B32
define void @load_i32_v2i32_local(<2 x i32> addrspace(1)* %out, i32 addrspace(3)* %in) {
%scalar = load i32 addrspace(3)* %in
%tmp0 = bitcast i32 addrspace(3)* %in to <2 x i32> addrspace(3)*
%vec_ptr = getelementptr <2 x i32> addrspace(3)* %tmp0, i32 2
%vec0 = load <2 x i32> addrspace(3)* %vec_ptr, align 4
%vec1 = insertelement <2 x i32> <i32 0, i32 0>, i32 %scalar, i32 0
%vec = add <2 x i32> %vec0, %vec1
store <2 x i32> %vec, <2 x i32> addrspace(1)* %out
ret void
}