mirror of
				https://github.com/c64scene-ar/llvm-6502.git
				synced 2025-10-31 08:16:47 +00:00 
			
		
		
		
	Essentially the same as the GEP change in r230786.
A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)
import fileinput
import sys
import re
pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")
for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7649
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
		
	
		
			
				
	
	
		
			196 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			196 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
| ; RUN: opt < %s -basicaa -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -loop-vectorize-with-block-frequency -dce -instcombine -S | FileCheck %s
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| 
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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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| target triple = "x86_64-apple-macosx10.8.0"
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| 
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| @b = common global [2048 x i32] zeroinitializer, align 16
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| @c = common global [2048 x i32] zeroinitializer, align 16
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| @a = common global [2048 x i32] zeroinitializer, align 16
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| @G = common global [32 x [1024 x i32]] zeroinitializer, align 16
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| @ub = common global [1024 x i32] zeroinitializer, align 16
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| @uc = common global [1024 x i32] zeroinitializer, align 16
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| @d = common global [2048 x i32] zeroinitializer, align 16
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| @fa = common global [1024 x float] zeroinitializer, align 16
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| @fb = common global [1024 x float] zeroinitializer, align 16
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| @ic = common global [1024 x i32] zeroinitializer, align 16
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| @da = common global [1024 x float] zeroinitializer, align 16
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| @db = common global [1024 x float] zeroinitializer, align 16
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| @dc = common global [1024 x float] zeroinitializer, align 16
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| @dd = common global [1024 x float] zeroinitializer, align 16
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| @dj = common global [1024 x i32] zeroinitializer, align 16
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| 
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| ; We can optimize this test without a tail.
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| ;CHECK-LABEL: @example1(
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| ;CHECK: load <4 x i32>
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| ;CHECK: add nsw <4 x i32>
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| ;CHECK: store <4 x i32>
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| ;CHECK: ret void
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| define void @example1() optsize {
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|   br label %1
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| 
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| ; <label>:1                                       ; preds = %1, %0
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|   %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
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|   %2 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv
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|   %3 = load i32, i32* %2, align 4
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|   %4 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv
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|   %5 = load i32, i32* %4, align 4
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|   %6 = add nsw i32 %5, %3
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|   %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv
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|   store i32 %6, i32* %7, align 4
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|   %indvars.iv.next = add i64 %indvars.iv, 1
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|   %lftr.wideiv = trunc i64 %indvars.iv.next to i32
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|   %exitcond = icmp eq i32 %lftr.wideiv, 256
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|   br i1 %exitcond, label %8, label %1
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| 
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| ; <label>:8                                       ; preds = %1
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|   ret void
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| }
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| 
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| ; Can't vectorize in 'optsize' mode because we need a tail.
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| ;CHECK-LABEL: @example2(
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| ;CHECK-NOT: store <4 x i32>
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| ;CHECK: ret void
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| define void @example2(i32 %n, i32 %x) optsize {
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|   %1 = icmp sgt i32 %n, 0
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|   br i1 %1, label %.lr.ph5, label %.preheader
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| 
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| ..preheader_crit_edge:                            ; preds = %.lr.ph5
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|   %phitmp = sext i32 %n to i64
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|   br label %.preheader
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| 
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| .preheader:                                       ; preds = %..preheader_crit_edge, %0
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|   %i.0.lcssa = phi i64 [ %phitmp, %..preheader_crit_edge ], [ 0, %0 ]
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|   %2 = icmp eq i32 %n, 0
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|   br i1 %2, label %._crit_edge, label %.lr.ph
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| 
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| .lr.ph5:                                          ; preds = %0, %.lr.ph5
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|   %indvars.iv6 = phi i64 [ %indvars.iv.next7, %.lr.ph5 ], [ 0, %0 ]
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|   %3 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv6
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|   store i32 %x, i32* %3, align 4
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|   %indvars.iv.next7 = add i64 %indvars.iv6, 1
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|   %lftr.wideiv = trunc i64 %indvars.iv.next7 to i32
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|   %exitcond = icmp eq i32 %lftr.wideiv, %n
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|   br i1 %exitcond, label %..preheader_crit_edge, label %.lr.ph5
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| 
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| .lr.ph:                                           ; preds = %.preheader, %.lr.ph
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|   %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ %i.0.lcssa, %.preheader ]
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|   %.02 = phi i32 [ %4, %.lr.ph ], [ %n, %.preheader ]
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|   %4 = add nsw i32 %.02, -1
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|   %5 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv
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|   %6 = load i32, i32* %5, align 4
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|   %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv
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|   %8 = load i32, i32* %7, align 4
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|   %9 = and i32 %8, %6
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|   %10 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv
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|   store i32 %9, i32* %10, align 4
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|   %indvars.iv.next = add i64 %indvars.iv, 1
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|   %11 = icmp eq i32 %4, 0
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|   br i1 %11, label %._crit_edge, label %.lr.ph
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| 
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| ._crit_edge:                                      ; preds = %.lr.ph, %.preheader
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|   ret void
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| }
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| 
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| ; N is unknown, we need a tail. Can't vectorize.
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| ;CHECK-LABEL: @example3(
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| ;CHECK-NOT: <4 x i32>
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| ;CHECK: ret void
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| define void @example3(i32 %n, i32* noalias nocapture %p, i32* noalias nocapture %q) optsize {
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|   %1 = icmp eq i32 %n, 0
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|   br i1 %1, label %._crit_edge, label %.lr.ph
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| 
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| .lr.ph:                                           ; preds = %0, %.lr.ph
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|   %.05 = phi i32 [ %2, %.lr.ph ], [ %n, %0 ]
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|   %.014 = phi i32* [ %5, %.lr.ph ], [ %p, %0 ]
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|   %.023 = phi i32* [ %3, %.lr.ph ], [ %q, %0 ]
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|   %2 = add nsw i32 %.05, -1
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|   %3 = getelementptr inbounds i32, i32* %.023, i64 1
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|   %4 = load i32, i32* %.023, align 16
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|   %5 = getelementptr inbounds i32, i32* %.014, i64 1
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|   store i32 %4, i32* %.014, align 16
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|   %6 = icmp eq i32 %2, 0
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|   br i1 %6, label %._crit_edge, label %.lr.ph
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| 
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| ._crit_edge:                                      ; preds = %.lr.ph, %0
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|   ret void
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| }
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| 
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| ; N is unknown, we need a tail. Can't vectorize because the loop is cold.
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| ;CHECK-LABEL: @example4(
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| ;CHECK-NOT: <4 x i32>
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| ;CHECK: ret void
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| define void @example4(i32 %n, i32* noalias nocapture %p, i32* noalias nocapture %q) {
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|   %1 = icmp eq i32 %n, 0
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|   br i1 %1, label %._crit_edge, label %.lr.ph, !prof !0
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| 
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| .lr.ph:                                           ; preds = %0, %.lr.ph
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|   %.05 = phi i32 [ %2, %.lr.ph ], [ %n, %0 ]
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|   %.014 = phi i32* [ %5, %.lr.ph ], [ %p, %0 ]
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|   %.023 = phi i32* [ %3, %.lr.ph ], [ %q, %0 ]
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|   %2 = add nsw i32 %.05, -1
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|   %3 = getelementptr inbounds i32, i32* %.023, i64 1
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|   %4 = load i32, i32* %.023, align 16
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|   %5 = getelementptr inbounds i32, i32* %.014, i64 1
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|   store i32 %4, i32* %.014, align 16
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|   %6 = icmp eq i32 %2, 0
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|   br i1 %6, label %._crit_edge, label %.lr.ph
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| 
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| ._crit_edge:                                      ; preds = %.lr.ph, %0
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|   ret void
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| }
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| 
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| !0 = !{!"branch_weights", i32 64, i32 4}
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| 
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| ; We can't vectorize this one because we need a runtime ptr check.
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| ;CHECK-LABEL: @example23(
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| ;CHECK-NOT: <4 x i32>
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| ;CHECK: ret void
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| define void @example23(i16* nocapture %src, i32* nocapture %dst) optsize {
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|   br label %1
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| 
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| ; <label>:1                                       ; preds = %1, %0
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|   %.04 = phi i16* [ %src, %0 ], [ %2, %1 ]
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|   %.013 = phi i32* [ %dst, %0 ], [ %6, %1 ]
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|   %i.02 = phi i32 [ 0, %0 ], [ %7, %1 ]
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|   %2 = getelementptr inbounds i16, i16* %.04, i64 1
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|   %3 = load i16, i16* %.04, align 2
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|   %4 = zext i16 %3 to i32
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|   %5 = shl nuw nsw i32 %4, 7
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|   %6 = getelementptr inbounds i32, i32* %.013, i64 1
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|   store i32 %5, i32* %.013, align 4
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|   %7 = add nsw i32 %i.02, 1
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|   %exitcond = icmp eq i32 %7, 256
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|   br i1 %exitcond, label %8, label %1
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| 
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| ; <label>:8                                       ; preds = %1
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|   ret void
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| }
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| 
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| 
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| ; We CAN vectorize this example because the pointers are marked as noalias.
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| ;CHECK-LABEL: @example23b(
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| ;CHECK: <4 x i32>
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| ;CHECK: ret void
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| define void @example23b(i16* noalias nocapture %src, i32* noalias nocapture %dst) optsize {
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|   br label %1
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| 
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| ; <label>:1                                       ; preds = %1, %0
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|   %.04 = phi i16* [ %src, %0 ], [ %2, %1 ]
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|   %.013 = phi i32* [ %dst, %0 ], [ %6, %1 ]
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|   %i.02 = phi i32 [ 0, %0 ], [ %7, %1 ]
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|   %2 = getelementptr inbounds i16, i16* %.04, i64 1
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|   %3 = load i16, i16* %.04, align 2
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|   %4 = zext i16 %3 to i32
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|   %5 = shl nuw nsw i32 %4, 7
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|   %6 = getelementptr inbounds i32, i32* %.013, i64 1
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|   store i32 %5, i32* %.013, align 4
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|   %7 = add nsw i32 %i.02, 1
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|   %exitcond = icmp eq i32 %7, 256
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|   br i1 %exitcond, label %8, label %1
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| 
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| ; <label>:8                                       ; preds = %1
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|   ret void
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| }
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| 
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| 
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