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; RUN: opt %loadPolly -polly-codegen -polly-invariant-load-hoisting=true -S < %s | FileCheck %s
;
; Verify the preloaded %tmp0 is stored and communicated in the same alloca.
; In this case, we do not reload %ncol.load from the scalar stack slot, but
; instead use directly the preloaded value stored in GlobalMap.
;
; CHECK-NOT: alloca
; CHECK: %tmp0.preload.s2a = alloca i32
; CHECK-NOT: alloca
;
; CHECK: %ncol.load = load i32, ptr @ncol
; CHECK-NEXT: store i32 %ncol.load, ptr %tmp0.preload.s2a
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
@ncol = external global i32, align 4
define void @melt_data(ptr %data1, ptr %data2) {
entry:
br label %entry.split
entry.split: ; preds = %entry
%tmp0 = load i32, ptr @ncol, align 4
%tobool.2 = icmp eq i32 %tmp0, 0
br i1 %tobool.2, label %while.end, label %while.body.lr.ph
while.body.lr.ph: ; preds = %entry.split
br label %while.body
while.body: ; preds = %while.body.lr.ph, %while.cond.backedge
%dec3.in = phi i32 [ %tmp0, %while.body.lr.ph ], [ %dec3, %while.cond.backedge ]
%dec3 = add nsw i32 %dec3.in, -1
%idxprom = sext i32 %dec3 to i64
%arrayidx = getelementptr inbounds i32, ptr %data1, i64 %idxprom
%tmp1 = load i32, ptr %arrayidx, align 4
%idxprom1 = sext i32 %dec3 to i64
%arrayidx2 = getelementptr inbounds i32, ptr %data2, i64 %idxprom1
%tmp2 = load i32, ptr %arrayidx2, align 4
%cmp = icmp sgt i32 %tmp1, %tmp2
br i1 %cmp, label %if.then, label %while.cond.backedge
if.then: ; preds = %while.body
%idxprom3 = sext i32 %dec3 to i64
%arrayidx4 = getelementptr inbounds i32, ptr %data2, i64 %idxprom3
%tmp3 = load i32, ptr %arrayidx4, align 4
%idxprom5 = sext i32 %dec3 to i64
%arrayidx6 = getelementptr inbounds i32, ptr %data1, i64 %idxprom5
store i32 %tmp3, ptr %arrayidx6, align 4
br label %while.cond.backedge
while.cond.backedge: ; preds = %if.then, %while.body
%tobool = icmp eq i32 %dec3, 0
br i1 %tobool, label %while.cond.while.end_crit_edge, label %while.body
while.cond.while.end_crit_edge: ; preds = %while.cond.backedge
br label %while.end
while.end: ; preds = %while.cond.while.end_crit_edge, %entry.split
ret void
}
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