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TheRock/compiler/amd-llvm/polly/test/ScopDetect/nested_loop_single_exit.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

45 lines
1.2 KiB
LLVM

; RUN: opt %loadNPMPolly '-passes=polly-custom<detect>' -polly-print-detect -disable-output < %s 2>&1 | FileCheck %s
; RUN: opt %loadNPMPolly '-passes=polly<no-default-opts>' -disable-output < %s
; void f(long A[], long N) {
; long i, j;
; if (true)
; for (j = 0; j < N; ++j)
; for (i = 0; i < N; ++i)
; A[i] = i;
; }
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"
define void @f(ptr %A, i64 %N) nounwind {
entry:
fence seq_cst
br label %next
next:
br i1 true, label %for.j, label %return
for.j:
%j.015 = phi i64 [ %inc5, %for.inc8 ], [ 0, %next ]
br label %for.i
for.i:
%indvar = phi i64 [ 0, %for.j], [ %indvar.next, %for.i ]
%scevgep = getelementptr i64, ptr %A, i64 %indvar
store i64 %indvar, ptr %scevgep
%indvar.next = add nsw i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, %N
br i1 %exitcond, label %for.inc8, label %for.i
for.inc8: ; preds = %for.body3
%inc5 = add nsw i64 %j.015, 1
%exitcond16 = icmp eq i64 %inc5, %N
br i1 %exitcond16, label %return, label %for.j
return:
fence seq_cst
ret void
}
; CHECK: Valid Region for Scop: next => return