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			68 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			68 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
| ; RUN: llc < %s -march=x86 -mattr=+sse2 -disable-mmx | FileCheck %s
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| 
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| ; test vector shifts converted to proper SSE2 vector shifts when the shift
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| ; amounts are the same.
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| 
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| ; Note that x86 does have ashr 
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| 
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| ; shift1a can't use a packed shift
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| define void @shift1a(<2 x i64> %val, <2 x i64>* %dst) nounwind {
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| entry:
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| ; CHECK: shift1a:
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| ; CHECK: sarl
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|   %ashr = ashr <2 x i64> %val, < i64 32, i64 32 >
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|   store <2 x i64> %ashr, <2 x i64>* %dst
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|   ret void
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| }
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| 
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| define void @shift2a(<4 x i32> %val, <4 x i32>* %dst) nounwind {
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| entry:
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| ; CHECK: shift2a:
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| ; CHECK: psrad	$5
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|   %ashr = ashr <4 x i32> %val, < i32 5, i32 5, i32 5, i32 5 >
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|   store <4 x i32> %ashr, <4 x i32>* %dst
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|   ret void
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| }
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| 
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| define void @shift2b(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind {
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| entry:
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| ; CHECK: shift2b:
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| ; CHECK: movd
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| ; CHECK-NEXT: psrad
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|   %0 = insertelement <4 x i32> undef, i32 %amt, i32 0
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|   %1 = insertelement <4 x i32> %0, i32 %amt, i32 1
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|   %2 = insertelement <4 x i32> %1, i32 %amt, i32 2
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|   %3 = insertelement <4 x i32> %2, i32 %amt, i32 3
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|   %ashr = ashr <4 x i32> %val, %3
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|   store <4 x i32> %ashr, <4 x i32>* %dst
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|   ret void
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| }
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| 
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| define void @shift3a(<8 x i16> %val, <8 x i16>* %dst) nounwind {
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| entry:
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| ; CHECK: shift3a:
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| ; CHECK: psraw	$5
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|   %ashr = ashr <8 x i16> %val, < i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5 >
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|   store <8 x i16> %ashr, <8 x i16>* %dst
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|   ret void
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| }
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| 
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| define void @shift3b(<8 x i16> %val, <8 x i16>* %dst, i16 %amt) nounwind {
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| entry:
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| ; CHECK: shift3b:
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| ; CHECK: movzwl
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| ; CHECK: movd
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| ; CHECK-NEXT: psraw
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|   %0 = insertelement <8 x i16> undef, i16 %amt, i32 0
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|   %1 = insertelement <8 x i16> %0, i16 %amt, i32 1
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|   %2 = insertelement <8 x i16> %0, i16 %amt, i32 2
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|   %3 = insertelement <8 x i16> %0, i16 %amt, i32 3
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|   %4 = insertelement <8 x i16> %0, i16 %amt, i32 4
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|   %5 = insertelement <8 x i16> %0, i16 %amt, i32 5
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|   %6 = insertelement <8 x i16> %0, i16 %amt, i32 6
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|   %7 = insertelement <8 x i16> %0, i16 %amt, i32 7
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|   %ashr = ashr <8 x i16> %val, %7
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|   store <8 x i16> %ashr, <8 x i16>* %dst
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|   ret void
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| }
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