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ef4209ce3d
ReplaceAllUsesWith doesn't remove the node that was replaced. So its left around in the graph messing up use counts on other nodes. One thing to note, is that this isn't valid if the node being deleted is the root node of an LEA match that gets rejected. In that case the node needs to stay alive because the isel table walking code would still have a reference to it that its going to try to match next. I don't think that's the case here though because the nodes being deleted here should be "and", "srl", and "zero_extend" none of which can be the root node of an LEA match. Differential Revision: https://reviews.llvm.org/D61048 llvm-svn: 359121
125 lines
4.4 KiB
LLVM
125 lines
4.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown -mattr=+avx512f,+avx512bw,+avx512vl,+avx512dq | FileCheck %s -check-prefix=X86
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; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+avx512f,+avx512bw,+avx512vl,+avx512dq | FileCheck %s -check-prefix=X64
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; According to https://bugs.llvm.org/show_bug.cgi?id=32329 it checks DAG ISEL failure on SKX target
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%struct.AA = type { i24, [4 x i8] }
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@obj = external local_unnamed_addr global %struct.AA, align 8
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@var_27 = external local_unnamed_addr constant i8, align 1
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@var_2 = external local_unnamed_addr constant i16, align 2
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@var_24 = external local_unnamed_addr constant i64, align 8
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@var_310 = external local_unnamed_addr global i64, align 8
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@var_50 = external local_unnamed_addr global i64, align 8
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@var_205 = external local_unnamed_addr global i8, align 1
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@var_218 = external local_unnamed_addr global i8, align 1
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define void @foo() local_unnamed_addr {
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; X86-LABEL: foo:
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; X86: # %bb.0: # %entry
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; X86-NEXT: pushl %ebp
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: pushl %ebx
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; X86-NEXT: .cfi_def_cfa_offset 12
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; X86-NEXT: pushl %edi
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; X86-NEXT: .cfi_def_cfa_offset 16
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 20
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; X86-NEXT: .cfi_offset %esi, -20
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; X86-NEXT: .cfi_offset %edi, -16
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; X86-NEXT: .cfi_offset %ebx, -12
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; X86-NEXT: .cfi_offset %ebp, -8
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; X86-NEXT: movsbl var_27, %eax
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; X86-NEXT: movzwl var_2, %esi
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; X86-NEXT: movl var_310, %ecx
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; X86-NEXT: imull %eax, %ecx
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; X86-NEXT: addl var_24, %ecx
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; X86-NEXT: movl $4194303, %edi # imm = 0x3FFFFF
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; X86-NEXT: andl obj, %edi
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; X86-NEXT: leal (%edi,%edi), %edx
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; X86-NEXT: subl %eax, %edx
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; X86-NEXT: movl %edx, %ebx
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; X86-NEXT: subl %esi, %ebx
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; X86-NEXT: imull %ebx, %ecx
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; X86-NEXT: addb $113, %cl
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; X86-NEXT: movl $9, %esi
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; X86-NEXT: xorl %ebp, %ebp
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; X86-NEXT: shldl %cl, %esi, %ebp
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; X86-NEXT: shll %cl, %esi
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; X86-NEXT: testb $32, %cl
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; X86-NEXT: cmovnel %esi, %ebp
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; X86-NEXT: movl $0, %ecx
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; X86-NEXT: cmovnel %ecx, %esi
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; X86-NEXT: cmpl %edi, %ebx
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; X86-NEXT: movl %ebp, var_50+4
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; X86-NEXT: movl %esi, var_50
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; X86-NEXT: setge var_205
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; X86-NEXT: imull %eax, %edx
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; X86-NEXT: movb %dl, var_218
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; X86-NEXT: popl %esi
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; X86-NEXT: .cfi_def_cfa_offset 16
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; X86-NEXT: popl %edi
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; X86-NEXT: .cfi_def_cfa_offset 12
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; X86-NEXT: popl %ebx
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: popl %ebp
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; X86-NEXT: .cfi_def_cfa_offset 4
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; X86-NEXT: retl
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;
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; X64-LABEL: foo:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movsbl {{.*}}(%rip), %r9d
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; X64-NEXT: movzwl {{.*}}(%rip), %r8d
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; X64-NEXT: movl {{.*}}(%rip), %ecx
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; X64-NEXT: imull %r9d, %ecx
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; X64-NEXT: addl {{.*}}(%rip), %ecx
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; X64-NEXT: movl $4194303, %esi # imm = 0x3FFFFF
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; X64-NEXT: andl {{.*}}(%rip), %esi
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; X64-NEXT: leal (%rsi,%rsi), %edi
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; X64-NEXT: subl %r9d, %edi
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; X64-NEXT: movl %edi, %edx
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; X64-NEXT: subl %r8d, %edx
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; X64-NEXT: imull %edx, %ecx
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; X64-NEXT: addb $113, %cl
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; X64-NEXT: movl $9, %eax
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; X64-NEXT: # kill: def $cl killed $cl killed $ecx
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; X64-NEXT: shlq %cl, %rax
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; X64-NEXT: movq %rax, {{.*}}(%rip)
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; X64-NEXT: cmpl %esi, %edx
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; X64-NEXT: setge {{.*}}(%rip)
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; X64-NEXT: imull %r9d, %edi
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; X64-NEXT: movb %dil, {{.*}}(%rip)
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; X64-NEXT: retq
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entry:
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%bf.load = load i32, i32* bitcast (%struct.AA* @obj to i32*), align 8
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%bf.clear = shl i32 %bf.load, 1
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%add = and i32 %bf.clear, 8388606
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%0 = load i8, i8* @var_27, align 1
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%conv5 = sext i8 %0 to i32
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%sub = sub nsw i32 %add, %conv5
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%1 = load i16, i16* @var_2, align 2
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%conv6 = zext i16 %1 to i32
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%sub7 = sub nsw i32 %sub, %conv6
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%conv8 = sext i32 %sub7 to i64
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%2 = load i64, i64* @var_24, align 8
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%3 = load i64, i64* @var_310, align 8
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%conv9 = sext i8 %0 to i64
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%mul = mul i64 %3, %conv9
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%add10 = add i64 %mul, %2
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%mul11 = mul i64 %add10, %conv8
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%sub12 = add i64 %mul11, 8662905354777116273
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%shl = shl i64 9, %sub12
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store i64 %shl, i64* @var_50, align 8
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%bf.clear14 = and i32 %bf.load, 4194303
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%add21 = shl nuw nsw i32 %bf.clear14, 1
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%sub23 = sub nsw i32 %add21, %conv5
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%sub25 = sub nsw i32 %sub23, %conv6
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%cmp = icmp sge i32 %sub25, %bf.clear14
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%conv30 = zext i1 %cmp to i8
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store i8 %conv30, i8* @var_205, align 1
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%mul43 = mul nsw i32 %sub, %conv5
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%conv44 = trunc i32 %mul43 to i8
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store i8 %conv44, i8* @var_218, align 1
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ret void
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}
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