diff options
Diffstat (limited to 'llvm/test/Transforms/LoopUnroll/loop-remarks.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopUnroll/loop-remarks.ll | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopUnroll/loop-remarks.ll b/llvm/test/Transforms/LoopUnroll/loop-remarks.ll new file mode 100644 index 00000000000..cb273f962f0 --- /dev/null +++ b/llvm/test/Transforms/LoopUnroll/loop-remarks.ll @@ -0,0 +1,48 @@ +; RUN: opt < %s -S -loop-unroll -pass-remarks=loop-unroll -unroll-count=16 2>&1 | FileCheck -check-prefix=COMPLETE-UNROLL %s +; RUN: opt < %s -S -loop-unroll -pass-remarks=loop-unroll -unroll-count=4 2>&1 | FileCheck -check-prefix=PARTIAL-UNROLL %s +; RUN: opt < %s -S -loop-unroll -pass-remarks=loop-unroll -unroll-count=4 -unroll-runtime=true -unroll-remainder 2>&1 | FileCheck %s --check-prefix=RUNTIME-UNROLL + +; COMPLETE-UNROLL: remark: {{.*}}: completely unrolled loop with 16 iterations +; PARTIAL-UNROLL: remark: {{.*}}: unrolled loop by a factor of 4 +; RUNTIME-UNROLL: remark: {{.*}}: unrolled loop by a factor of 4 + +define i32 @sum() { +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 + +for.end: ; preds = %for.body + ret i32 %add1 +} + +; RUNTIME-UNROLL-NOT: remark: {{.*}}: completely unrolled loop with 3 iterations +; RUNTIME-UNROLL: remark: {{.*}}: unrolled loop by a factor of 4 + +define i32 @runtime(i32 %n) { +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, %n + br i1 %exitcond, label %for.end, label %for.body + +for.end: ; preds = %for.body + ret i32 %add1 +} + +declare i32 @baz(i32)
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