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| ; RUN: opt %loadPolly -polly-analyze-read-only-scalars=true -polly-optree -analyze < %s | FileCheck %s -match-full-lines -check-prefixes=STATS,MODEL
; RUN: opt %loadPolly -polly-analyze-read-only-scalars=false -polly-optree -analyze < %s | FileCheck %s -match-full-lines -check-prefixes=STATS,NOMODEL
;
; Move %val to %bodyB, so %bodyA can be removed (by -polly-simplify)
;
; for (int j = 0; j < n; j += 1) {
; bodyA:
; double val = arg + 21.0;
;
; bodyB:
; A[0] = val;
; }
;
define void @func(i32 %n, double* noalias nonnull %A, double %arg) {
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 %bodyA, label %exit
bodyA:
%val = fadd double %arg, 21.0
br label %bodyB
bodyB:
store double %val, double* %A
br label %inc
inc:
%j.inc = add nuw nsw i32 %j, 1
br label %for
exit:
br label %return
return:
ret void
}
; STATS: Statistics {
; STATS: Instructions copied: 1
; STATS: Read-only accesses copied: 1
; STATS: Operand trees forwarded: 1
; STATS: Statements with forwarded operand trees: 1
; STATS: }
; MODEL: After statements {
; MODEL-NEXT: Stmt_bodyA
; MODEL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
; MODEL-NEXT: [n] -> { Stmt_bodyA[i0] -> MemRef_arg[] };
; MODEL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
; MODEL-NEXT: [n] -> { Stmt_bodyA[i0] -> MemRef_val[] };
; MODEL-NEXT: Instructions {
; MODEL-NEXT: %val = fadd double %arg, 2.100000e+01
; MODEL-NEXT: }
; MODEL-NEXT: Stmt_bodyB
; MODEL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; MODEL-NEXT: [n] -> { Stmt_bodyB[i0] -> MemRef_A[0] };
; MODEL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
; MODEL-NEXT: [n] -> { Stmt_bodyB[i0] -> MemRef_arg[] };
; MODEL-NEXT: Instructions {
; MODEL-NEXT: %val = fadd double %arg, 2.100000e+01
; MODEL-NEXT: store double %val, double* %A
; MODEL-NEXT: }
; MODEL-NEXT: }
; NOMODEL: After statements {
; NOMODEL-NEXT: Stmt_bodyA
; NOMODEL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
; NOMODEL-NEXT: [n] -> { Stmt_bodyA[i0] -> MemRef_val[] };
; NOMODEL-NEXT: Instructions {
; NOMODEL-NEXT: %val = fadd double %arg, 2.100000e+01
; NOMODEL-NEXT: }
; NOMODEL-NEXT: Stmt_bodyB
; NOMODEL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; NOMODEL-NEXT: [n] -> { Stmt_bodyB[i0] -> MemRef_A[0] };
; NOMODEL-NEXT: Instructions {
; NOMODEL-NEXT: %val = fadd double %arg, 2.100000e+01
; NOMODEL-NEXT: store double %val, double* %A
; NOMODEL-NEXT: }
; NOMODEL-NEXT: }
|