derek.holloway
7502bf64a4
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299 lines
8.5 KiB
LLVM
299 lines
8.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -o - %s -mtriple=x86_64-- | FileCheck %s --check-prefixes=CHECK,NOBMI
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; RUN: llc -o - %s -mtriple=x86_64-- -mattr=+bmi | FileCheck %s --check-prefixes=CHECK,BMI
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;
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; test that masked-merge code is generated as "xor;and;xor" sequence or
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; "andn ; and; or" if and-not is available.
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define i32 @masked_merge0(i32 %a0, i32 %a1, i32 %a2) {
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; NOBMI-LABEL: masked_merge0:
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; NOBMI: # %bb.0:
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; NOBMI-NEXT: movl %esi, %eax
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; NOBMI-NEXT: xorl %edx, %eax
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; NOBMI-NEXT: andl %edi, %eax
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; NOBMI-NEXT: xorl %edx, %eax
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; NOBMI-NEXT: retq
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;
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; BMI-LABEL: masked_merge0:
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; BMI: # %bb.0:
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; BMI-NEXT: andl %edi, %esi
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; BMI-NEXT: andnl %edx, %edi, %eax
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; BMI-NEXT: orl %esi, %eax
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; BMI-NEXT: retq
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%and0 = and i32 %a0, %a1
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%not = xor i32 %a0, -1
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%and1 = and i32 %not, %a2
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%or = or i32 %and0, %and1
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ret i32 %or
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}
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define i16 @masked_merge1(i16 %a0, i16 %a1, i16 %a2) {
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; NOBMI-LABEL: masked_merge1:
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; NOBMI: # %bb.0:
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; NOBMI-NEXT: movl %esi, %eax
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; NOBMI-NEXT: xorl %edx, %eax
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; NOBMI-NEXT: andl %edi, %eax
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; NOBMI-NEXT: xorl %edx, %eax
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; NOBMI-NEXT: # kill: def $ax killed $ax killed $eax
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; NOBMI-NEXT: retq
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;
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; BMI-LABEL: masked_merge1:
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; BMI: # %bb.0:
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; BMI-NEXT: andnl %edx, %edi, %eax
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; BMI-NEXT: andl %edi, %esi
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; BMI-NEXT: orl %esi, %eax
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; BMI-NEXT: # kill: def $ax killed $ax killed $eax
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; BMI-NEXT: retq
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%and0 = and i16 %a0, %a1
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%not = xor i16 %a0, -1
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%and1 = and i16 %a2, %not
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%or = or i16 %and0, %and1
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ret i16 %or
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}
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define i8 @masked_merge2(i8 %a0, i8 %a1, i8 %a2) {
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; CHECK-LABEL: masked_merge2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl %esi, %eax
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; CHECK-NEXT: # kill: def $al killed $al killed $eax
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; CHECK-NEXT: retq
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%not = xor i8 %a0, -1
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%and0 = and i8 %not, %a1
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%and1 = and i8 %a1, %a0
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%or = or i8 %and0, %and1
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ret i8 %or
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}
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define i64 @masked_merge3(i64 %a0, i64 %a1, i64 %a2) {
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; NOBMI-LABEL: masked_merge3:
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; NOBMI: # %bb.0:
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; NOBMI-NEXT: movq %rsi, %rax
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; NOBMI-NEXT: notq %rdx
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; NOBMI-NEXT: xorq %rdx, %rax
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; NOBMI-NEXT: notq %rax
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; NOBMI-NEXT: andq %rdi, %rax
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; NOBMI-NEXT: xorq %rdx, %rax
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; NOBMI-NEXT: retq
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;
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; BMI-LABEL: masked_merge3:
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; BMI: # %bb.0:
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; BMI-NEXT: notq %rdx
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; BMI-NEXT: andnq %rdx, %rdi, %rcx
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; BMI-NEXT: andnq %rdi, %rsi, %rax
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; BMI-NEXT: orq %rcx, %rax
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; BMI-NEXT: retq
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%v0 = xor i64 %a1, -1
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%v1 = xor i64 %a2, -1
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%not = xor i64 %a0, -1
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%and0 = and i64 %not, %v1
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%and1 = and i64 %v0, %a0
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%or = or i64 %and0, %and1
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ret i64 %or
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}
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; not a masked merge: there is no `not` operation.
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define i32 @not_a_masked_merge0(i32 %a0, i32 %a1, i32 %a2) {
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; CHECK-LABEL: not_a_masked_merge0:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl %edi, %eax
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; CHECK-NEXT: andl %edi, %esi
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; CHECK-NEXT: negl %eax
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; CHECK-NEXT: andl %edx, %eax
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; CHECK-NEXT: orl %esi, %eax
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; CHECK-NEXT: retq
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%and0 = and i32 %a0, %a1
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%not_a_not = sub i32 0, %a0
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%and1 = and i32 %not_a_not, %a2
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%or = or i32 %and0, %and1
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ret i32 %or
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}
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; not a masked merge: `not` operand does not match another `and`-operand.
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define i32 @not_a_masked_merge1(i32 %a0, i32 %a1, i32 %a2, i32 %a3) {
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; NOBMI-LABEL: not_a_masked_merge1:
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; NOBMI: # %bb.0:
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; NOBMI-NEXT: movl %ecx, %eax
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; NOBMI-NEXT: andl %esi, %edi
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; NOBMI-NEXT: notl %eax
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; NOBMI-NEXT: andl %edx, %eax
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; NOBMI-NEXT: orl %edi, %eax
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; NOBMI-NEXT: retq
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;
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; BMI-LABEL: not_a_masked_merge1:
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; BMI: # %bb.0:
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; BMI-NEXT: andl %esi, %edi
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; BMI-NEXT: andnl %edx, %ecx, %eax
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; BMI-NEXT: orl %edi, %eax
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; BMI-NEXT: retq
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%and0 = and i32 %a0, %a1
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%not = xor i32 %a3, -1
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%and1 = and i32 %not, %a2
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%or = or i32 %and0, %and1
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ret i32 %or
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}
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; not a masked merge: one of the operands of `or` is not an `and`.
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define i32 @not_a_masked_merge2(i32 %a0, i32 %a1, i32 %a2) {
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; NOBMI-LABEL: not_a_masked_merge2:
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; NOBMI: # %bb.0:
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; NOBMI-NEXT: movl %edi, %eax
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; NOBMI-NEXT: orl %edi, %esi
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; NOBMI-NEXT: notl %eax
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; NOBMI-NEXT: andl %edx, %eax
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; NOBMI-NEXT: orl %esi, %eax
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; NOBMI-NEXT: retq
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;
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; BMI-LABEL: not_a_masked_merge2:
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; BMI: # %bb.0:
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; BMI-NEXT: orl %edi, %esi
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; BMI-NEXT: andnl %edx, %edi, %eax
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; BMI-NEXT: orl %esi, %eax
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; BMI-NEXT: retq
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%not_an_and0 = or i32 %a0, %a1
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%not = xor i32 %a0, -1
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%and1 = and i32 %not, %a2
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%or = or i32 %not_an_and0, %and1
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ret i32 %or
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}
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; not a masked merge: one of the operands of `or` is not an `and`.
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define i32 @not_a_masked_merge3(i32 %a0, i32 %a1, i32 %a2) {
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; CHECK-LABEL: not_a_masked_merge3:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl %edx, %eax
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; CHECK-NEXT: andl %edi, %esi
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; CHECK-NEXT: xorl %edi, %eax
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; CHECK-NEXT: notl %eax
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; CHECK-NEXT: orl %esi, %eax
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; CHECK-NEXT: retq
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%and0 = and i32 %a0, %a1
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%not = xor i32 %a0, -1
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%not_an_and1 = xor i32 %not, %a2
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%or = or i32 %and0, %not_an_and1
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ret i32 %or
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}
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; not a masked merge: `not` operand must not be on same `and`.
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define i32 @not_a_masked_merge4(i32 %a0, i32 %a1, i32 %a2) {
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; CHECK-LABEL: not_a_masked_merge4:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl %edi, %eax
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; CHECK-NEXT: andl %esi, %eax
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; CHECK-NEXT: retq
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%and0 = and i32 %a0, %a1
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%not = xor i32 %a2, -1
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%and1 = and i32 %not, %a2
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%or = or i32 %and0, %and1
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ret i32 %or
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}
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; should not transform when operands have multiple users.
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define i32 @masked_merge_no_transform0(i32 %a0, i32 %a1, i32 %a2, ptr %p1) {
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; NOBMI-LABEL: masked_merge_no_transform0:
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; NOBMI: # %bb.0:
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; NOBMI-NEXT: # kill: def $esi killed $esi def $rsi
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; NOBMI-NEXT: # kill: def $edi killed $edi def $rdi
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; NOBMI-NEXT: andl %edi, %esi
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; NOBMI-NEXT: notl %edi
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; NOBMI-NEXT: andl %edx, %edi
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; NOBMI-NEXT: leal (%rdi,%rsi), %eax
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; NOBMI-NEXT: movl %esi, (%rcx)
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; NOBMI-NEXT: retq
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;
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; BMI-LABEL: masked_merge_no_transform0:
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; BMI: # %bb.0:
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; BMI-NEXT: andl %edi, %esi
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; BMI-NEXT: andnl %edx, %edi, %eax
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; BMI-NEXT: orl %esi, %eax
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; BMI-NEXT: movl %esi, (%rcx)
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; BMI-NEXT: retq
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%and0 = and i32 %a0, %a1
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%not = xor i32 %a0, -1
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%and1 = and i32 %not, %a2
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%or = or i32 %and0, %and1
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store i32 %and0, ptr %p1
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ret i32 %or
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}
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; should not transform when operands have multiple users.
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define i32 @masked_merge_no_transform1(i32 %a0, i32 %a1, i32 %a2, ptr %p1) {
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; NOBMI-LABEL: masked_merge_no_transform1:
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; NOBMI: # %bb.0:
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; NOBMI-NEXT: # kill: def $edx killed $edx def $rdx
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; NOBMI-NEXT: # kill: def $esi killed $esi def $rsi
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; NOBMI-NEXT: andl %edi, %esi
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; NOBMI-NEXT: notl %edi
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; NOBMI-NEXT: andl %edi, %edx
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; NOBMI-NEXT: leal (%rdx,%rsi), %eax
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; NOBMI-NEXT: movl %edi, (%rcx)
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; NOBMI-NEXT: retq
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;
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; BMI-LABEL: masked_merge_no_transform1:
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; BMI: # %bb.0:
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; BMI-NEXT: andl %edi, %esi
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; BMI-NEXT: andnl %edx, %edi, %eax
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; BMI-NEXT: notl %edi
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; BMI-NEXT: orl %esi, %eax
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; BMI-NEXT: movl %edi, (%rcx)
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; BMI-NEXT: retq
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%and0 = and i32 %a0, %a1
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%not = xor i32 %a0, -1
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%and1 = and i32 %not, %a2
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%or = or i32 %and0, %and1
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store i32 %not, ptr %p1
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ret i32 %or
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}
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; should not transform when operands have multiple users.
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define i32 @masked_merge_no_transform2(i32 %a0, i32 %a1, i32 %a2, ptr %p1) {
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; NOBMI-LABEL: masked_merge_no_transform2:
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; NOBMI: # %bb.0:
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; NOBMI-NEXT: # kill: def $esi killed $esi def $rsi
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; NOBMI-NEXT: # kill: def $edi killed $edi def $rdi
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; NOBMI-NEXT: andl %edi, %esi
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; NOBMI-NEXT: notl %edi
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; NOBMI-NEXT: andl %edx, %edi
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; NOBMI-NEXT: leal (%rsi,%rdi), %eax
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; NOBMI-NEXT: movl %edi, (%rcx)
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; NOBMI-NEXT: retq
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;
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; BMI-LABEL: masked_merge_no_transform2:
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; BMI: # %bb.0:
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; BMI-NEXT: # kill: def $esi killed $esi def $rsi
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; BMI-NEXT: andl %edi, %esi
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; BMI-NEXT: andnl %edx, %edi, %edx
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; BMI-NEXT: leal (%rsi,%rdx), %eax
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; BMI-NEXT: movl %edx, (%rcx)
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; BMI-NEXT: retq
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%and0 = and i32 %a0, %a1
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%not = xor i32 %a0, -1
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%and1 = and i32 %not, %a2
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%or = or i32 %and0, %and1
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store i32 %and1, ptr %p1
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ret i32 %or
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}
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define i32 @pr137641_crash({ i8, i32 } %0) {
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; NOBMI-LABEL: pr137641_crash:
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; NOBMI: # %bb.0:
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; NOBMI-NEXT: movl %esi, %eax
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; NOBMI-NEXT: andl $201, %eax
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; NOBMI-NEXT: xorl $1, %eax
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; NOBMI-NEXT: retq
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;
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; BMI-LABEL: pr137641_crash:
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; BMI: # %bb.0:
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; BMI-NEXT: movl %esi, %eax
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; BMI-NEXT: notl %eax
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; BMI-NEXT: andl $1, %eax
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; BMI-NEXT: andl $200, %esi
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; BMI-NEXT: orl %esi, %eax
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; BMI-NEXT: retq
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%asmresult1.i = extractvalue { i8, i32 } %0, 1
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%not = xor i32 %asmresult1.i, 1
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%and = and i32 1, %not
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%and1 = and i32 %asmresult1.i, 200
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%2 = or i32 %and, %and1
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ret i32 %2
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}
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