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; RUN: opt %loadPolly -S \
; RUN: -polly-analyze-read-only-scalars=false -polly-codegen < %s | FileCheck %s
; RUN: opt %loadPolly -S \
; RUN: -polly-analyze-read-only-scalars=true -polly-codegen < %s | FileCheck %s
;
; float f(float *A, int N) {
; float tmp = 0;
; for (int i = 0; i < N; i++)
; tmp += A[i];
; return tmp;
; }
; CHECK-LABEL: polly.merge_new_and_old:
; CHECK-NEXT: %tmp.0.merge = phi float [ %tmp.0.final_reload, %polly.exiting ], [ %tmp.0, %bb8 ]
; CHECK-NEXT: br label %exit
; CHECK-LABEL: polly.start:
; CHECK-NEXT: store float 0.000000e+00, ptr %tmp.0.phiops
; CHECK-NEXT: sext
; CHECK-LABEL: polly.exiting:
; CHECK-NEXT: %tmp.0.final_reload = load float, ptr %tmp.0.s2a
; CHECK-NEXT: br label %polly.merge_new_and_old
; CHECK-LABEL: polly.stmt.bb1{{[0-9]*}}:
; CHECK-NEXT: %tmp.0.phiops.reload[[R1:[0-9]*]] = load float, ptr %tmp.0.phiops
; CHECK-: store float %tmp.0.phiops.reload[[R1]], ptr %tmp.0.s2a
; CHECK-LABEL: polly.stmt.bb4:
; CHECK: %tmp.0.s2a.reload[[R3:[0-9]*]] = load float, ptr %tmp.0.s2a
; CHECK: %tmp[[R5:[0-9]*]]_p_scalar_ = load float, ptr %scevgep, align 4, !alias.scope !0, !noalias !3
; CHECK: %p_tmp[[R4:[0-9]*]] = fadd float %tmp.0.s2a.reload[[R3]], %tmp[[R5]]_p_scalar_
; CHECK: store float %p_tmp[[R4]], ptr %tmp.0.phiops
; CHECK-LABEL: polly.stmt.bb1{{[0-9]*}}:
; CHECK-NEXT: %tmp.0.phiops.reload[[R2:[0-9]*]] = load float, ptr %tmp.0.phiops
; CHECK: store float %tmp.0.phiops.reload[[R2]], ptr %tmp.0.s2a
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define float @f(ptr %A, i32 %N) {
bb:
%tmp = sext i32 %N to i64
br label %bb1
bb1: ; preds = %bb4, %bb
%indvars.iv = phi i64 [ %indvars.iv.next, %bb4 ], [ 0, %bb ]
%tmp.0 = phi float [ 0.000000e+00, %bb ], [ %tmp7, %bb4 ]
%tmp2 = icmp slt i64 %indvars.iv, %tmp
br i1 %tmp2, label %bb3, label %bb8
bb3: ; preds = %bb1
br label %bb4
bb4: ; preds = %bb3
%tmp5 = getelementptr inbounds float, ptr %A, i64 %indvars.iv
%tmp6 = load float, ptr %tmp5, align 4
%tmp7 = fadd float %tmp.0, %tmp6
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %bb1
bb8: ; preds = %bb1
br label %exit
exit:
ret float %tmp.0
}
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