forked from OSchip/llvm-project
63 lines
1.6 KiB
LLVM
63 lines
1.6 KiB
LLVM
; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %s
|
|
; RUN: opt %loadPolly -polly-detect -polly-codegen-scev -analyze < %s | FileCheck %s
|
|
|
|
; void f(long A[], long N) {
|
|
; long i;
|
|
; if (true)
|
|
; for (i = 0; i < N; ++i)
|
|
; A[i] = i;
|
|
; else
|
|
; for (j = 0; j < N; ++j)
|
|
; A[j] = j;
|
|
; }
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
declare i64 @foo()
|
|
|
|
define void @f(i64* %A, i64 %N) nounwind {
|
|
entry:
|
|
fence seq_cst
|
|
br i1 true, label %next, label %next2
|
|
|
|
next2:
|
|
br i1 true, label %for.j, label %return
|
|
|
|
for.j:
|
|
%indvar2 = phi i64 [ 0, %next2], [ %indvar2.next2, %for.j]
|
|
%scevgep2 = getelementptr i64* %A, i64 %indvar2
|
|
store i64 %indvar2, i64* %scevgep2
|
|
%indvar2.next2 = add nsw i64 %indvar2, 1
|
|
%exitcond2 = icmp eq i64 %indvar2.next2, %N
|
|
br i1 %exitcond2, label %return, label %for.j
|
|
|
|
next:
|
|
br i1 true, label %for.i, label %return
|
|
|
|
for.i:
|
|
%indvar = phi i64 [ 0, %next], [ %indvar.next, %for.i ]
|
|
%scevgep = getelementptr i64* %A, i64 %indvar
|
|
store i64 %indvar, i64* %scevgep
|
|
%i = call i64 @foo()
|
|
%indvar.next = add nsw i64 %indvar, 1
|
|
%exitcond = icmp eq i64 %indvar.next, %N
|
|
br i1 %exitcond, label %return, label %for.i
|
|
|
|
return:
|
|
br i1 true, label %return_a, label %return_b
|
|
|
|
return_a:
|
|
br label %return_join
|
|
|
|
return_b:
|
|
br label %return_join
|
|
|
|
return_join:
|
|
fence seq_cst
|
|
ret void
|
|
}
|
|
|
|
; CHECK-NOT: Valid Region for Scop: next => return
|
|
; CHECK: Valid Region for Scop: next2 => return
|