read-only-scalars.ll
1.15 KB
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; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-analyze-read-only-scalars=false -polly-scops \
; RUN: -analyze < %s | FileCheck %s
; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-analyze-read-only-scalars=true -polly-scops \
; RUN: -analyze < %s | FileCheck %s \
; RUN: -check-prefix=SCALARS
; CHECK-NOT: Memref_scalar
; SCALARS: float MemRef_scalar; // Element size 4
; SCALARS: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
; SCALARS: { Stmt_stmt1[i0] -> MemRef_scalar[] };
; SCALARS: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
; SCALARS: { Stmt_stmt1[i0] -> MemRef_scalar2[] };
define void @foo(float* noalias %A, float* %B, float %scalar, float %scalar2) {
entry:
br label %loop
loop:
%indvar = phi i64 [0, %entry], [%indvar.next, %loop.backedge]
br label %stmt1
stmt1:
%val = load float, float* %A
%sum = fadd float %val, %scalar
store float %sum, float* %A
store float %scalar2, float* %B
br label %loop.backedge
loop.backedge:
%indvar.next = add i64 %indvar, 1
%cond = icmp sle i64 %indvar, 100
br i1 %cond, label %loop, label %exit
exit:
ret void
}