[Polly] Added dedicated test for working -O3 pipeline.
Test the NewPM as well as the legacy PM.
GitOrigin-RevId: d50f92a4f0bcd2a28ac0e4ad9942998b144cf48d
diff --git a/test/Support/passmanager-O3.ll b/test/Support/passmanager-O3.ll
new file mode 100644
index 0000000..aaa90b7
--- /dev/null
+++ b/test/Support/passmanager-O3.ll
@@ -0,0 +1,41 @@
+; RUN: opt %loadPolly -enable-new-pm=0 -polly -O3 -S < %s | FileCheck %s
+; RUN: opt %loadPolly -enable-new-pm=1 -polly -O3 -S < %s | FileCheck %s
+;
+; Check that Polly's default pipeline works from detection to code generation
+; with either pass manager.
+; The presence of the BB polly.stmt.body.lr.ph indicates that the statement
+; has been re-generated by Polly. It should not have been merged with other
+; BBs by SimplifyCFG.
+;
+; for (int j = 0; j < n; j += 1) {
+; A[0] = 42.0;
+; }
+;
+define void @func(i32 %n, double* noalias nonnull %A) {
+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 %body, label %exit
+
+ body:
+ store double 42.0, double* %A
+ br label %inc
+
+inc:
+ %j.inc = add nuw nsw i32 %j, 1
+ br label %for
+
+exit:
+ br label %return
+
+return:
+ ret void
+}
+
+
+; CHECK-LABEL: define void @func(i32 %n, double* noalias nocapture nonnull %A)
+; CHECK: polly.stmt.body.lr.ph:
+; CHECK-NEXT: store double 4.200000e+01, double* %A, align 8
