================
@@ -0,0 +1,116 @@
+; RUN: opt < %s -passes='print<access-info>' -debug-only=loop-accesses
-disable-output 2>&1 | FileCheck %s
+
+; REQUIRES: asserts
+
+
+define void @frexp_f64(ptr %in, ptr %out1, ptr %out2, i32 %N) {
+; CHECK: LAA: Allow to vectorize math function with write-only attribute:
%call = tail call double @frexp
+entry:
+ %cmp4 = icmp sgt i32 %N, 0
+ br i1 %cmp4, label %for.body.preheader, label %for.cond.cleanup
+
+for.body.preheader:
+ %wide.trip.count = zext nneg i32 %N to i64
+ br label %for.body
+
+for.cond.cleanup:
+ ret void
+
+for.body:
+ %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next,
%for.body ]
----------------
fhahn wrote:
please strip `%indvars.` prefix to keep value names more concise
https://github.com/llvm/llvm-project/pull/78432
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