phi_scalar_simple_2.ll
4.35 KB
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; RUN: opt %loadPolly -S -polly-codegen < %s | FileCheck %s
;
; int jd(int *restrict A, int x, int N, int c) {
; for (int i = 0; i < N; i++)
; for (int j = 0; j < N; j++)
; if (i < c)
; 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, i32 %c) {
entry:
; CHECK-LABEL: entry:
; CHECK-DAG: %x.addr.2.s2a = alloca i32
; CHECK-DAG: %x.addr.2.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
%tmp1 = sext i32 %c 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-NEXT: store i32 %x, i32* %x.addr.0.phiops
; CHECK-NEXT: sext
; CHECK-LABEL: polly.merge{{[a-z_0-9]*}}:
; CHECK: %x.addr.0.final_reload = load i32, i32* %x.addr.0.s2a
for.cond: ; preds = %for.inc5, %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.inc5 ], [ 0, %entry ]
%x.addr.0 = phi i32 [ %x, %entry ], [ %x.addr.1, %for.inc5 ]
%cmp = icmp slt i64 %indvars.iv, %tmp
br i1 %cmp, label %for.body, label %for.end7
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.inc5: ; preds = %for.end
; CHECK-LABEL: polly.stmt.for.inc5:
; CHECK: %x.addr.1.s2a.reload[[R5:[0-9]*]] = load i32, i32* %x.addr.1.s2a
; CHECK: store i32 %x.addr.1.s2a.reload[[R5]], i32* %x.addr.0.phiops
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
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
%x.addr.1 = phi i32 [ %x.addr.0, %for.body ], [ %x.addr.2, %for.inc ]
%j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
%exitcond = icmp ne i32 %j.0, %N
br i1 %exitcond, label %for.body3, label %for.end
for.body3: ; preds = %for.cond1
; CHECK-LABEL: polly.stmt.for.body3:
; CHECK: %x.addr.1.s2a.reload = load i32, i32* %x.addr.1.s2a
; CHECK: store i32 %x.addr.1.s2a.reload, i32* %x.addr.2.phiops
%cmp4 = icmp slt i64 %indvars.iv, %tmp1
br i1 %cmp4, label %if.then, label %if.end
if.end: ; preds = %if.then, %for.body3
; CHECK-LABEL: polly.stmt.if.end:
; CHECK: %x.addr.2.phiops.reload = load i32, i32* %x.addr.2.phiops
; CHECK: store i32 %x.addr.2.phiops.reload, i32* %x.addr.2.s2a
%x.addr.2 = phi i32 [ %add, %if.then ], [ %x.addr.1, %for.body3 ]
br label %for.inc
for.inc: ; preds = %if.end
; CHECK-LABEL: polly.stmt.for.inc:
; CHECK: %x.addr.2.s2a.reload[[R3:[0-9]*]] = load i32, i32* %x.addr.2.s2a
; CHECK: store i32 %x.addr.2.s2a.reload[[R3]], i32* %x.addr.1.phiops
%inc = add nsw i32 %j.0, 1
br label %for.cond1
if.then: ; preds = %for.body3
; CHECK-LABEL: polly.stmt.if.then:
; CHECK: %x.addr.1.s2a.reload[[R5:[0-9]*]] = load i32, i32* %x.addr.1.s2a
; CHECK: %p_add = add nsw i32 %x.addr.1.s2a.reload[[R5]], %tmp2_p_scalar_
; CHECK: store i32 %p_add, i32* %x.addr.2.phiops
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
%tmp2 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %x.addr.1, %tmp2
br label %if.end
for.end: ; preds = %for.cond1
br label %for.inc5
for.end7: ; preds = %for.cond
ret i32 %x.addr.0
}