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Use base-pointer address space when creating new access functions 

llvm-svn: 237785
This commit is contained in:
Tobias Grosser 2015-05-20 11:02:12 +00:00
parent 9eff8b1426
commit 5db5d2da13
2 changed files with 50 additions and 3 deletions
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9
polly/lib/CodeGen/IslExprBuilder.cpp
View File

@ -115,9 +115,12 @@ Value *IslExprBuilder::createAccessAddress(isl_ast_expr *Expr) {
assert(Base->getType()->isPointerTy() && "Access base should be a pointer");
StringRef BaseName = Base->getName();
if (Base->getType() != SAI->getElementType()->getPointerTo())
Base = Builder.CreateBitCast(Base, SAI->getElementType()->getPointerTo(),
"polly.access.cast." + BaseName);
auto PointerTy = PointerType::get(SAI->getElementType(),
Base->getType()->getPointerAddressSpace());
if (Base->getType() != PointerTy) {
Base =
Builder.CreateBitCast(Base, PointerTy, "polly.access.cast." + BaseName);
}
IndexOp = nullptr;
for (unsigned u = 1, e = isl_ast_expr_get_op_n_arg(Expr); u < e; u++) {

44
polly/test/Isl/CodeGen/MemAccess/codegen_address_space.ll Normal file
View File

@ -0,0 +1,44 @@
;RUN: opt %loadPolly -polly-detect-unprofitable -polly-no-early-exit -polly-import-jscop -polly-import-jscop-dir=%S -polly-import-jscop-postfix=transformed -polly-codegen -instnamer < %s -S | FileCheck %s
;int A[100];
;
;int codegen_simple () {
; for (int i = 0; i < 12; i++)
; A[13] = A[i] + A[i-1];
;
; return 0;
;}
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
define i32 @codegen_simple([100 x i32] addrspace(5)* %A) nounwind {
entry:
%arrayidx.write = getelementptr [100 x i32], [100 x i32] addrspace(5)* %A, i32 0, i32 13
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%tmp1 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
%tmp = add i32 %tmp1, -1
%arrayidx4 = getelementptr [100 x i32], [100 x i32] addrspace(5)* %A, i32 0, i32 %tmp
%arrayidx = getelementptr [100 x i32], [100 x i32] addrspace(5)* %A, i32 0, i32 %tmp1
%exitcond = icmp ne i32 %tmp1, 12
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%tmp2 = load i32, i32 addrspace(5)* %arrayidx, align 4
%tmp5 = load i32, i32 addrspace(5)* %arrayidx4, align 4
%add = add nsw i32 %tmp2, %tmp5
store i32 %add, i32 addrspace(5)* %arrayidx.write
br label %for.inc
for.inc: ; preds = %for.body
%inc = add nsw i32 %tmp1, 1
br label %for.cond
for.end: ; preds = %for.cond
ret i32 0
}
; CHECK: %polly.access.cast.A = bitcast [100 x i32] addrspace(5)* %A to i32 addrspace(5)*
; CHECK: %polly.access.A = getelementptr i32, i32 addrspace(5)* %polly.access.cast.A, i64 0
; CHECK: %tmp2_p_scalar_ = load i32, i32 addrspace(5)* %polly.access.A, align 4, !alias.scope !0, !noalias !2