derek.holloway
7502bf64a4
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176 lines
6.8 KiB
LLVM
176 lines
6.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-apple-macosx -mattr=+sse2 -verify-machineinstrs | FileCheck %s
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; After tail duplication, two copies in an early exit BB can be cancelled out.
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; rdar://10640363
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define i32 @t1(i32 %a, i32 %b) nounwind {
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; CHECK-LABEL: t1:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: movl %edi, %eax
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; CHECK-NEXT: testl %esi, %esi
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; CHECK-NEXT: je LBB0_4
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; CHECK-NEXT: ## %bb.1: ## %while.body.preheader
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; CHECK-NEXT: movl %esi, %edx
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; CHECK-NEXT: .p2align 4
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; CHECK-NEXT: LBB0_2: ## %while.body
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; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: movl %edx, %ecx
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; CHECK-NEXT: cltd
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; CHECK-NEXT: idivl %ecx
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; CHECK-NEXT: testl %edx, %edx
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; CHECK-NEXT: movl %ecx, %eax
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; CHECK-NEXT: jne LBB0_2
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; CHECK-NEXT: ## %bb.3: ## %while.end
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; CHECK-NEXT: movl %ecx, %eax
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; CHECK-NEXT: LBB0_4:
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; CHECK-NEXT: retq
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entry:
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%cmp1 = icmp eq i32 %b, 0
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br i1 %cmp1, label %while.end, label %while.body
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while.body: ; preds = %entry, %while.body
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%a.addr.03 = phi i32 [ %b.addr.02, %while.body ], [ %a, %entry ]
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%b.addr.02 = phi i32 [ %rem, %while.body ], [ %b, %entry ]
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%rem = srem i32 %a.addr.03, %b.addr.02
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%cmp = icmp eq i32 %rem, 0
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br i1 %cmp, label %while.end, label %while.body
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while.end: ; preds = %while.body, %entry
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%a.addr.0.lcssa = phi i32 [ %a, %entry ], [ %b.addr.02, %while.body ]
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ret i32 %a.addr.0.lcssa
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}
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; Two movdqa (from phi-elimination) in the entry BB cancels out.
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; rdar://10428165
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define <8 x i16> @t2(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
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; CHECK-LABEL: t2:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
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; CHECK-NEXT: pshuflw {{.*#+}} xmm0 = xmm0[0,1,1,2,4,5,6,7]
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; CHECK-NEXT: punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
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; CHECK-NEXT: retq
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entry:
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%tmp8 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 undef, i32 undef, i32 7, i32 2, i32 8, i32 undef, i32 undef , i32 undef >
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ret <8 x i16> %tmp8
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}
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define i32 @t3(i64 %a, i64 %b) nounwind {
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; CHECK-LABEL: t3:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: movq %rdi, %rax
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; CHECK-NEXT: testq %rsi, %rsi
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; CHECK-NEXT: je LBB2_4
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; CHECK-NEXT: ## %bb.1: ## %while.body.preheader
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; CHECK-NEXT: movq %rsi, %rdx
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; CHECK-NEXT: .p2align 4
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; CHECK-NEXT: LBB2_2: ## %while.body
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; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: movq %rdx, %rcx
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; CHECK-NEXT: cqto
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; CHECK-NEXT: idivq %rcx
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; CHECK-NEXT: testq %rdx, %rdx
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; CHECK-NEXT: movq %rcx, %rax
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; CHECK-NEXT: jne LBB2_2
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; CHECK-NEXT: ## %bb.3: ## %while.end
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; CHECK-NEXT: movl %ecx, %eax
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; CHECK-NEXT: LBB2_4:
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; CHECK-NEXT: retq
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entry:
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%cmp1 = icmp eq i64 %b, 0
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br i1 %cmp1, label %while.end, label %while.body
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while.body: ; preds = %entry, %while.body
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%a.addr.03 = phi i64 [ %b.addr.02, %while.body ], [ %a, %entry ]
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%b.addr.02 = phi i64 [ %rem, %while.body ], [ %b, %entry ]
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%rem = srem i64 %a.addr.03, %b.addr.02
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%cmp = icmp eq i64 %rem, 0
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br i1 %cmp, label %while.end, label %while.body
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while.end: ; preds = %while.body, %entry
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%a.addr.0.lcssa = phi i64 [ %a, %entry ], [ %b.addr.02, %while.body ]
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%t = trunc i64 %a.addr.0.lcssa to i32
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ret i32 %t
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}
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; Check that copy propagation does not kill thing like:
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; dst = copy src <-- do not kill that.
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; ... = op1 undef dst
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; ... = op2 dst <-- this is used here.
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define <16 x float> @foo(<16 x float> %x) {
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; CHECK-LABEL: foo:
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; CHECK: ## %bb.0: ## %bb
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; CHECK-NEXT: xorps %xmm5, %xmm5
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; CHECK-NEXT: cvttps2dq %xmm3, %xmm8
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; CHECK-NEXT: movaps %xmm3, %xmm4
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; CHECK-NEXT: cmpltps %xmm5, %xmm4
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; CHECK-NEXT: movaps {{.*#+}} xmm7 = [13,14,15,16]
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; CHECK-NEXT: movaps %xmm4, %xmm6
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; CHECK-NEXT: orps %xmm7, %xmm6
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; CHECK-NEXT: cvtdq2ps %xmm8, %xmm3
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; CHECK-NEXT: andps %xmm7, %xmm3
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; CHECK-NEXT: andps %xmm6, %xmm3
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; CHECK-NEXT: andnps %xmm4, %xmm6
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; CHECK-NEXT: cvttps2dq %xmm2, %xmm4
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; CHECK-NEXT: movaps %xmm2, %xmm7
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; CHECK-NEXT: cmpltps %xmm5, %xmm7
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; CHECK-NEXT: movaps {{.*#+}} xmm8 = [9,10,11,12]
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; CHECK-NEXT: movaps %xmm7, %xmm9
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; CHECK-NEXT: orps %xmm8, %xmm9
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; CHECK-NEXT: cvtdq2ps %xmm4, %xmm2
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; CHECK-NEXT: andps %xmm8, %xmm2
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; CHECK-NEXT: andps %xmm9, %xmm2
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; CHECK-NEXT: andnps %xmm7, %xmm9
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; CHECK-NEXT: cvttps2dq %xmm1, %xmm4
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; CHECK-NEXT: cmpltps %xmm5, %xmm1
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; CHECK-NEXT: movaps {{.*#+}} xmm7 = [5,6,7,8]
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; CHECK-NEXT: movaps %xmm1, %xmm8
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; CHECK-NEXT: orps %xmm7, %xmm8
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; CHECK-NEXT: cvtdq2ps %xmm4, %xmm4
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; CHECK-NEXT: andps %xmm7, %xmm4
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; CHECK-NEXT: andps %xmm8, %xmm4
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; CHECK-NEXT: andnps %xmm1, %xmm8
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; CHECK-NEXT: cvttps2dq %xmm0, %xmm1
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; CHECK-NEXT: cmpltps %xmm5, %xmm0
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; CHECK-NEXT: movaps {{.*#+}} xmm5 = [1,2,3,4]
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; CHECK-NEXT: movaps %xmm0, %xmm7
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; CHECK-NEXT: orps %xmm5, %xmm7
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; CHECK-NEXT: cvtdq2ps %xmm1, %xmm1
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; CHECK-NEXT: andps %xmm5, %xmm1
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; CHECK-NEXT: andps %xmm7, %xmm1
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; CHECK-NEXT: andnps %xmm0, %xmm7
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; CHECK-NEXT: movaps {{.*#+}} xmm0 = [1,1,1,1]
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; CHECK-NEXT: andps %xmm0, %xmm7
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; CHECK-NEXT: orps %xmm7, %xmm1
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; CHECK-NEXT: andps %xmm0, %xmm8
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; CHECK-NEXT: orps %xmm8, %xmm4
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; CHECK-NEXT: andps %xmm0, %xmm9
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; CHECK-NEXT: orps %xmm9, %xmm2
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; CHECK-NEXT: andps %xmm0, %xmm6
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; CHECK-NEXT: orps %xmm6, %xmm3
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; CHECK-NEXT: movaps %xmm1, %xmm0
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; CHECK-NEXT: movaps %xmm4, %xmm1
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; CHECK-NEXT: retq
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bb:
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%v3 = icmp slt <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>, zeroinitializer
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%v14 = zext <16 x i1> %v3 to <16 x i32>
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%v16 = fcmp olt <16 x float> %x, zeroinitializer
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%v17 = sext <16 x i1> %v16 to <16 x i32>
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%v18 = zext <16 x i1> %v16 to <16 x i32>
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%v19 = xor <16 x i32> %v14, %v18
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%v20 = or <16 x i32> %v17, <i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16>
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%v21 = fptosi <16 x float> %x to <16 x i32>
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%v22 = sitofp <16 x i32> %v21 to <16 x float>
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%v69 = fcmp ogt <16 x float> %v22, zeroinitializer
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%v75 = and <16 x i1> %v69, %v3
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%v77 = bitcast <16 x float> %v22 to <16 x i32>
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%v79 = sext <16 x i1> %v75 to <16 x i32>
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%v80 = and <16 x i32> <i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16>, %v79
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%v81 = xor <16 x i32> %v77, %v80
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%v82 = and <16 x i32> <i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16>, %v81
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%v83 = xor <16 x i32> %v19, %v82
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%v84 = and <16 x i32> %v83, %v20
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%v85 = xor <16 x i32> %v19, %v84
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%v86 = bitcast <16 x i32> %v85 to <16 x float>
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ret <16 x float> %v86
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}
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