102 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			102 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			LLVM
		
	
	
	
; 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
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; 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
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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"
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; First loop produced diagnostic pass remark.
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;CHECK: remark: {{.*}}:0:0: vectorized loop (vectorization width: 4, interleaved count: 1)
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; Second loop produces diagnostic analysis remark.
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;CHECK: remark: {{.*}}:0:0: loop not vectorized: cannot prove it is safe to reorder memory operations
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; First loop produced diagnostic pass remark.
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;OVERRIDE: remark: {{.*}}:0:0: vectorized loop (vectorization width: 4, interleaved count: 1)
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; Second loop produces diagnostic pass remark.
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;OVERRIDE: remark: {{.*}}:0:0: vectorized loop (vectorization width: 4, interleaved count: 1)
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; We are vectorizing with 6 runtime checks.
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;CHECK-LABEL: func1x6(
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;CHECK: <4 x i32>
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;CHECK: ret
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;OVERRIDE-LABEL: func1x6(
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;OVERRIDE: <4 x i32>
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;OVERRIDE: ret
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define i32 @func1x6(i32* nocapture %out, i32* nocapture %A, i32* nocapture %B, i32* nocapture %C, i32* nocapture %D, i32* nocapture %E, i32* nocapture %F) {
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entry:
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  br label %for.body
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for.body:                                         ; preds = %for.body, %entry
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  %i.016 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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  %arrayidx = getelementptr inbounds i32, i32* %A, i64 %i.016
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  %0 = load i32, i32* %arrayidx, align 4
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  %arrayidx1 = getelementptr inbounds i32, i32* %B, i64 %i.016
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  %1 = load i32, i32* %arrayidx1, align 4
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  %add = add nsw i32 %1, %0
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  %arrayidx2 = getelementptr inbounds i32, i32* %C, i64 %i.016
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  %2 = load i32, i32* %arrayidx2, align 4
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  %add3 = add nsw i32 %add, %2
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  %arrayidx4 = getelementptr inbounds i32, i32* %E, i64 %i.016
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  %3 = load i32, i32* %arrayidx4, align 4
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  %add5 = add nsw i32 %add3, %3
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  %arrayidx6 = getelementptr inbounds i32, i32* %F, i64 %i.016
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  %4 = load i32, i32* %arrayidx6, align 4
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  %add7 = add nsw i32 %add5, %4
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  %arrayidx8 = getelementptr inbounds i32, i32* %out, i64 %i.016
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  store i32 %add7, i32* %arrayidx8, align 4
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  %inc = add i64 %i.016, 1
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  %exitcond = icmp eq i64 %inc, 256
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  br i1 %exitcond, label %for.end, label %for.body
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for.end:                                          ; preds = %for.body
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  ret i32 undef
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}
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; We are not vectorizing with 12 runtime checks.
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;CHECK-LABEL: func2x6(
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;CHECK-NOT: <4 x i32>
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;CHECK: ret
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; We vectorize with 12 checks if a vectorization hint is provided.
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;OVERRIDE-LABEL: func2x6(
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;OVERRIDE: <4 x i32>
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;OVERRIDE: ret
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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) {
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entry:
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  br label %for.body
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for.body:                                         ; preds = %for.body, %entry
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  %i.037 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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  %arrayidx = getelementptr inbounds i32, i32* %A, i64 %i.037
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  %0 = load i32, i32* %arrayidx, align 4
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  %arrayidx1 = getelementptr inbounds i32, i32* %B, i64 %i.037
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  %1 = load i32, i32* %arrayidx1, align 4
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  %add = add nsw i32 %1, %0
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  %arrayidx2 = getelementptr inbounds i32, i32* %C, i64 %i.037
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  %2 = load i32, i32* %arrayidx2, align 4
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  %add3 = add nsw i32 %add, %2
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  %arrayidx4 = getelementptr inbounds i32, i32* %E, i64 %i.037
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  %3 = load i32, i32* %arrayidx4, align 4
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  %add5 = add nsw i32 %add3, %3
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  %arrayidx6 = getelementptr inbounds i32, i32* %F, i64 %i.037
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  %4 = load i32, i32* %arrayidx6, align 4
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  %add7 = add nsw i32 %add5, %4
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  %arrayidx8 = getelementptr inbounds i32, i32* %out, i64 %i.037
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  store i32 %add7, i32* %arrayidx8, align 4
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  %5 = load i32, i32* %arrayidx, align 4
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  %6 = load i32, i32* %arrayidx1, align 4
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  %add11 = add nsw i32 %6, %5
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  %7 = load i32, i32* %arrayidx2, align 4
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  %add13 = add nsw i32 %add11, %7
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  %8 = load i32, i32* %arrayidx4, align 4
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  %add15 = add nsw i32 %add13, %8
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  %9 = load i32, i32* %arrayidx6, align 4
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  %add17 = add nsw i32 %add15, %9
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  %arrayidx18 = getelementptr inbounds i32, i32* %out2, i64 %i.037
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  store i32 %add17, i32* %arrayidx18, align 4
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  %inc = add i64 %i.037, 1
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  %exitcond = icmp eq i64 %inc, 256
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  br i1 %exitcond, label %for.end, label %for.body
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for.end:                                          ; preds = %for.body
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  ret i32 undef
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}
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