phi_scalar_simple_1.ll
3.8 KB
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; RUN: opt %loadPolly -S -polly-codegen < %s | FileCheck %s
;
; int jd(int *restrict A, int x, int N) {
; for (int i = 1; i < N; i++)
; for (int j = 3; j < N; j++)
; x += A[i];
; return x;
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define i32 @jd(i32* noalias %A, i32 %x, i32 %N) {
entry:
; CHECK-LABEL: entry:
; CHECK-DAG: %x.addr.1.lcssa.s2a = alloca i32
; CHECK-DAG: %x.addr.1.lcssa.phiops = alloca i32
; CHECK-DAG: %x.addr.1.s2a = alloca i32
; CHECK-DAG: %x.addr.1.phiops = alloca i32
; CHECK-DAG: %x.addr.0.s2a = alloca i32
; CHECK-DAG: %x.addr.0.phiops = alloca i32
%tmp = sext i32 %N to i64
br label %for.cond
; CHECK-LABEL: polly.merge_new_and_old:
; CHECK: %x.addr.0.merge = phi i32 [ %x.addr.0.final_reload, %polly.exiting ], [ %x.addr.0, %for.cond ]
; CHECK: ret i32 %x.addr.0.merge
; CHECK-LABEL: polly.start:
; CHECK: store i32 %x, i32* %x.addr.0.phiops
; CHECK-LABEL: polly.exiting:
; CHECK: %x.addr.0.final_reload = load i32, i32* %x.addr.0.s2a
for.cond: ; preds = %for.inc4, %entry
; CHECK-LABEL: polly.stmt.for.cond{{[0-9]*}}:
; CHECK: %x.addr.0.phiops.reload[[R1:[0-9]*]] = load i32, i32* %x.addr.0.phiops
; CHECK: store i32 %x.addr.0.phiops.reload[[R1]], i32* %x.addr.0.s2a
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc4 ], [ 1, %entry ]
%x.addr.0 = phi i32 [ %x, %entry ], [ %x.addr.1.lcssa, %for.inc4 ]
%cmp = icmp slt i64 %indvars.iv, %tmp
br i1 %cmp, label %for.body, label %for.end6
for.body: ; preds = %for.cond
; CHECK-LABEL: polly.stmt.for.body:
; CHECK: %x.addr.0.s2a.reload[[R2:[0-9]*]] = load i32, i32* %x.addr.0.s2a
; CHECK: store i32 %x.addr.0.s2a.reload[[R2]], i32* %x.addr.1.phiops
br label %for.cond1
for.cond1: ; preds = %for.inc, %for.body
; CHECK-LABEL: polly.stmt.for.cond1:
; CHECK: %x.addr.1.phiops.reload = load i32, i32* %x.addr.1.phiops
; CHECK: store i32 %x.addr.1.phiops.reload, i32* %x.addr.1.s2a[[R6:[0-9]*]]
; CHECK: store i32 %x.addr.1.phiops.reload, i32* %x.addr.1.lcssa.phiops
%x.addr.1 = phi i32 [ %x.addr.0, %for.body ], [ %add, %for.inc ]
%j.0 = phi i32 [ 3, %for.body ], [ %inc, %for.inc ]
%exitcond = icmp ne i32 %j.0, %N
br i1 %exitcond, label %for.body3, label %for.end
for.inc: ; preds = %for.body3
; CHECK-LABEL: polly.stmt.for.inc:
; CHECK: %x.addr.1.s2a.reload[[R3:[0-9]*]] = load i32, i32* %x.addr.1.s2a
; CHECK: %p_add = add nsw i32 %x.addr.1.s2a.reload[[R3]], %tmp1_p_scalar_
; CHECK: store i32 %p_add, i32* %x.addr.1.phiops
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
%tmp1 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %x.addr.1, %tmp1
%inc = add nsw i32 %j.0, 1
br label %for.cond1
for.end: ; preds = %for.cond1
; CHECK-LABEL: polly.stmt.for.end:
; CHECK-NEXT: %x.addr.1.lcssa.phiops.reload = load i32, i32* %x.addr.1.lcssa.phiops
; CHECK-NEXT: store i32 %x.addr.1.lcssa.phiops.reload, i32* %x.addr.1.lcssa.s2a[[R4:[0-9]*]]
%x.addr.1.lcssa = phi i32 [ %x.addr.1, %for.cond1 ]
br label %for.inc4
for.inc4: ; preds = %for.end
; CHECK-LABEL: polly.stmt.for.inc4:
; CHECK: %x.addr.1.lcssa.s2a.reload[[R5:[0-9]*]] = load i32, i32* %x.addr.1.lcssa.s2a[[R4]]
; CHECK: store i32 %x.addr.1.lcssa.s2a.reload[[R5]], i32* %x.addr.0.phiops
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.body3: ; preds = %for.cond1
br label %for.inc
for.end6: ; preds = %for.cond
ret i32 %x.addr.0
}