[LoopVectorizer] Refine loop vectorizer's register usage calculator by ignoring speci...

[oota-llvm.git] / test / Transforms / LoopVectorize / runtime-limit.ll

diff --git a/test/Transforms/LoopVectorize/runtime-limit.ll b/test/Transforms/LoopVectorize/runtime-limit.ll
index d7839746f0e15430dfa5c3d57e70cf10e6c091a2..a7f692cef170749772013b98504db59aff931e67 100644 (file)
--- a/test/Transforms/LoopVectorize/runtime-limit.ll
+++ b/test/Transforms/LoopVectorize/runtime-limit.ll
@@ -1,33 +1,46 @@
-; RUN: opt < %s  -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
+; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -dce -instcombine -pass-remarks=loop-vectorize -pass-remarks-missed=loop-vectorize -S 2>&1 | FileCheck %s -check-prefix=OVERRIDE
+; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -pragma-vectorize-memory-check-threshold=6 -dce -instcombine -pass-remarks=loop-vectorize -pass-remarks-missed=loop-vectorize -S 2>&1 | FileCheck %s
 
 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-n8:16:32:64-S128"
-target triple = "x86_64-apple-macosx10.8.0"
+
+; First loop produced diagnostic pass remark.
+;CHECK: remark: {{.*}}:0:0: vectorized loop (vectorization width: 4, interleaved count: 1)
+; Second loop produces diagnostic analysis remark.
+;CHECK: remark: {{.*}}:0:0: loop not vectorized: cannot prove it is safe to reorder memory operations
+
+; First loop produced diagnostic pass remark.
+;OVERRIDE: remark: {{.*}}:0:0: vectorized loop (vectorization width: 4, interleaved count: 1)
+; Second loop produces diagnostic pass remark.
+;OVERRIDE: remark: {{.*}}:0:0: vectorized loop (vectorization width: 4, interleaved count: 1)
 
 ; We are vectorizing with 6 runtime checks.
-;CHECK: func1x6
+;CHECK-LABEL: func1x6(
 ;CHECK: <4 x i32>
 ;CHECK: ret
+;OVERRIDE-LABEL: func1x6(
+;OVERRIDE: <4 x i32>
+;OVERRIDE: ret
 define i32 @func1x6(i32* nocapture %out, i32* nocapture %A, i32* nocapture %B, i32* nocapture %C, i32* nocapture %D, i32* nocapture %E, i32* nocapture %F) {
 entry:
   br label %for.body
 
 for.body:                                         ; preds = %for.body, %entry
   %i.016 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
-  %arrayidx = getelementptr inbounds i32* %A, i64 %i.016
-  %0 = load i32* %arrayidx, align 4
-  %arrayidx1 = getelementptr inbounds i32* %B, i64 %i.016
-  %1 = load i32* %arrayidx1, align 4
+  %arrayidx = getelementptr inbounds i32, i32* %A, i64 %i.016
+  %0 = load i32, i32* %arrayidx, align 4
+  %arrayidx1 = getelementptr inbounds i32, i32* %B, i64 %i.016
+  %1 = load i32, i32* %arrayidx1, align 4
   %add = add nsw i32 %1, %0
-  %arrayidx2 = getelementptr inbounds i32* %C, i64 %i.016
-  %2 = load i32* %arrayidx2, align 4
+  %arrayidx2 = getelementptr inbounds i32, i32* %C, i64 %i.016
+  %2 = load i32, i32* %arrayidx2, align 4
   %add3 = add nsw i32 %add, %2
-  %arrayidx4 = getelementptr inbounds i32* %E, i64 %i.016
-  %3 = load i32* %arrayidx4, align 4
+  %arrayidx4 = getelementptr inbounds i32, i32* %E, i64 %i.016
+  %3 = load i32, i32* %arrayidx4, align 4
   %add5 = add nsw i32 %add3, %3
-  %arrayidx6 = getelementptr inbounds i32* %F, i64 %i.016
-  %4 = load i32* %arrayidx6, align 4
+  %arrayidx6 = getelementptr inbounds i32, i32* %F, i64 %i.016
+  %4 = load i32, i32* %arrayidx6, align 4
   %add7 = add nsw i32 %add5, %4
-  %arrayidx8 = getelementptr inbounds i32* %out, i64 %i.016
+  %arrayidx8 = getelementptr inbounds i32, i32* %out, i64 %i.016
   store i32 %add7, i32* %arrayidx8, align 4
   %inc = add i64 %i.016, 1
   %exitcond = icmp eq i64 %inc, 256
@@ -38,41 +51,45 @@ for.end:                                          ; preds = %for.body
 }
 
 ; We are not vectorizing with 12 runtime checks.
-;CHECK: func2x6
+;CHECK-LABEL: func2x6(
 ;CHECK-NOT: <4 x i32>
 ;CHECK: ret
+; We vectorize with 12 checks if a vectorization hint is provided.
+;OVERRIDE-LABEL: func2x6(
+;OVERRIDE: <4 x i32>
+;OVERRIDE: ret
 define i32 @func2x6(i32* nocapture %out, i32* nocapture %out2, i32* nocapture %A, i32* nocapture %B, i32* nocapture %C, i32* nocapture %D, i32* nocapture %E, i32* nocapture %F) {
 entry:
   br label %for.body
 
 for.body:                                         ; preds = %for.body, %entry
   %i.037 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
-  %arrayidx = getelementptr inbounds i32* %A, i64 %i.037
-  %0 = load i32* %arrayidx, align 4
-  %arrayidx1 = getelementptr inbounds i32* %B, i64 %i.037
-  %1 = load i32* %arrayidx1, align 4
+  %arrayidx = getelementptr inbounds i32, i32* %A, i64 %i.037
+  %0 = load i32, i32* %arrayidx, align 4
+  %arrayidx1 = getelementptr inbounds i32, i32* %B, i64 %i.037
+  %1 = load i32, i32* %arrayidx1, align 4
   %add = add nsw i32 %1, %0
-  %arrayidx2 = getelementptr inbounds i32* %C, i64 %i.037
-  %2 = load i32* %arrayidx2, align 4
+  %arrayidx2 = getelementptr inbounds i32, i32* %C, i64 %i.037
+  %2 = load i32, i32* %arrayidx2, align 4
   %add3 = add nsw i32 %add, %2
-  %arrayidx4 = getelementptr inbounds i32* %E, i64 %i.037
-  %3 = load i32* %arrayidx4, align 4
+  %arrayidx4 = getelementptr inbounds i32, i32* %E, i64 %i.037
+  %3 = load i32, i32* %arrayidx4, align 4
   %add5 = add nsw i32 %add3, %3
-  %arrayidx6 = getelementptr inbounds i32* %F, i64 %i.037
-  %4 = load i32* %arrayidx6, align 4
+  %arrayidx6 = getelementptr inbounds i32, i32* %F, i64 %i.037
+  %4 = load i32, i32* %arrayidx6, align 4
   %add7 = add nsw i32 %add5, %4
-  %arrayidx8 = getelementptr inbounds i32* %out, i64 %i.037
+  %arrayidx8 = getelementptr inbounds i32, i32* %out, i64 %i.037
   store i32 %add7, i32* %arrayidx8, align 4
-  %5 = load i32* %arrayidx, align 4
-  %6 = load i32* %arrayidx1, align 4
+  %5 = load i32, i32* %arrayidx, align 4
+  %6 = load i32, i32* %arrayidx1, align 4
   %add11 = add nsw i32 %6, %5
-  %7 = load i32* %arrayidx2, align 4
+  %7 = load i32, i32* %arrayidx2, align 4
   %add13 = add nsw i32 %add11, %7
-  %8 = load i32* %arrayidx4, align 4
+  %8 = load i32, i32* %arrayidx4, align 4
   %add15 = add nsw i32 %add13, %8
-  %9 = load i32* %arrayidx6, align 4
+  %9 = load i32, i32* %arrayidx6, align 4
   %add17 = add nsw i32 %add15, %9
-  %arrayidx18 = getelementptr inbounds i32* %out2, i64 %i.037
+  %arrayidx18 = getelementptr inbounds i32, i32* %out2, i64 %i.037
   store i32 %add17, i32* %arrayidx18, align 4
   %inc = add i64 %i.037, 1
   %exitcond = icmp eq i64 %inc, 256