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| ; RUN: opt %loadPolly -polly-simplify -analyze < %s | FileCheck %s -match-full-lines
; RUN: opt %loadPolly -polly-simplify -polly-codegen -S < %s | FileCheck %s -check-prefix=CODEGEN
;
; for (int i = 0; i < n; i+=1) {
; (void)A[0];
; if (21.0 == 0.0)
; B[0] = 42.0;
; }
;
define void @func(i32 %n, double* noalias nonnull %A, double* noalias nonnull %B) {
entry:
br label %for
for:
%j = phi i32 [0, %entry], [%j.inc, %inc]
%j.cmp = icmp slt i32 %j, %n
br i1 %j.cmp, label %region_entry, label %exit
region_entry:
%val = load double, double* %A
%cmp = fcmp oeq double 21.0, 0.0
br i1 %cmp, label %region_true, label %region_exit
region_true:
store double 42.0, double* %B
br label %region_exit
region_exit:
br label %body
body:
br label %inc
inc:
%j.inc = add nuw nsw i32 %j, 1
br label %for
exit:
br label %return
return:
ret void
}
; CHECK: Statistics {
; CHECK: Dead accesses removed: 1
; CHECK: Dead instructions removed: 1
; CHECK: }
; CHECK: After accesses {
; CHECK-NEXT: Stmt_region_entry__TO__region_exit
; CHECK-NEXT: MayWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [n] -> { Stmt_region_entry__TO__region_exit[i0] -> MemRef_B[0] };
; CHECK-NEXT: }
; CODEGEN: polly.stmt.region_entry:
; CODEGEN-NEXT: %p_cmp = fcmp oeq double 2.100000e+01, 0.000000e+00
; CODEGEN-NEXT: br i1 %p_cmp
|