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llvm-mirror/test/Transforms/LoopUnroll/loop-remarks-with-hotness.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

29 lines
1.1 KiB
LLVM

; RUN: opt < %s -S -loop-unroll -pass-remarks=loop-unroll -pass-remarks-with-hotness -unroll-count=16 2>&1 | FileCheck -check-prefix=COMPLETE-UNROLL %s
; RUN: opt < %s -S -loop-unroll -pass-remarks=loop-unroll -pass-remarks-with-hotness -unroll-count=4 2>&1 | FileCheck -check-prefix=PARTIAL-UNROLL %s
; COMPLETE-UNROLL: remark: {{.*}}: completely unrolled loop with 16 iterations (hotness: 300)
; PARTIAL-UNROLL: remark: {{.*}}: unrolled loop by a factor of 4 {{.*}} (hotness: 300)
define i32 @sum() !prof !0 {
entry:
br label %for.body
for.body: ; preds = %for.body, %entry
%s.06 = phi i32 [ 0, %entry ], [ %add1, %for.body ]
%i.05 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%add = add nsw i32 %i.05, 4
%call = tail call i32 @baz(i32 %add) #2
%add1 = add nsw i32 %call, %s.06
%inc = add nsw i32 %i.05, 1
%exitcond = icmp eq i32 %inc, 16
br i1 %exitcond, label %for.end, label %for.body, !prof !1
for.end: ; preds = %for.body
ret i32 %add1
}
declare i32 @baz(i32)
!0 = !{!"function_entry_count", i64 3}
!1 = !{!"branch_weights", i32 1, i32 99}