licm_load.ll
2.04 KB
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; RUN: opt %loadPolly -basic-aa -loop-rotate -indvars -polly-prepare \
; RUN: -polly-invariant-load-hoisting=true -polly-scops -analyze < %s \
; RUN: | FileCheck %s
; RUN: opt %loadPolly -basic-aa -loop-rotate -indvars -licm -polly-prepare \
; RUN: -polly-invariant-load-hoisting=true -polly-scops -analyze < %s \
; RUN: | FileCheck %s
;
; void foo(int n, float A[static const restrict n],
; float B[static const restrict n], int j) {
; for (int i = 0; i < n; i++)
; A[i] = B[j];
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo(i32 %n, float* noalias nonnull %A, float* noalias nonnull %B, i32 %j) {
entry:
%tmp = sext i32 %n to i64
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
%cmp = icmp slt i64 %indvars.iv, %tmp
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%idxprom = sext i32 %j to i64
%arrayidx = getelementptr inbounds float, float* %B, i64 %idxprom
%tmp1 = bitcast float* %arrayidx to i32*
%tmp2 = load i32, i32* %tmp1, align 4
%arrayidx2 = getelementptr inbounds float, float* %A, i64 %indvars.iv
%tmp3 = bitcast float* %arrayidx2 to i32*
store i32 %tmp2, i32* %tmp3, align 4
br label %for.inc
for.inc: ; preds = %for.body
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
; CHECK: Invariant Accesses: {
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [n, j] -> { Stmt_{{[a-zA-Z_]*}}[{{[i0]*}}] -> MemRef_B[j] };
; CHECK-NEXT: Execution Context: [n, j] -> { : n > 0 }
; CHECK-NEXT: }
;
; CHECK: Statements {
; CHECK: Stmt_for_body
; CHECK: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [n, j] -> { Stmt_for_body[i0] -> MemRef_A[i0] };
; CHECK: }