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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc -mtriple=x86_64-linux-gnu < %s | FileCheck %s3 4%"struct.std::atomic" = type { %"struct.std::atomic_bool" }5%"struct.std::atomic_bool" = type { %"struct.std::__atomic_base" }6%"struct.std::__atomic_base" = type { i8 }7 8; CHECK-LABEL: _Z3fooRSt6atomicIbEb9define zeroext i1 @_Z3fooRSt6atomicIbEb(ptr nocapture dereferenceable(1) %a, i1 returned zeroext %b) nounwind {10; CHECK-LABEL: _Z3fooRSt6atomicIbEb:11; CHECK: # %bb.0: # %entry12; CHECK-NEXT: movl %esi, %eax13; CHECK-NEXT: movq %rdi, %rcx14; CHECK-NEXT: shrq $3, %rcx15; CHECK-NEXT: movzbl 2147450880(%rcx), %ecx16; CHECK-NEXT: testb %cl, %cl17; CHECK-NEXT: je .LBB0_318; CHECK-NEXT: # %bb.1:19; CHECK-NEXT: movl %edi, %edx20; CHECK-NEXT: andb $7, %dl21; CHECK-NEXT: cmpb %cl, %dl22; CHECK-NEXT: jge .LBB0_223; CHECK-NEXT: .LBB0_3:24; CHECK-NEXT: movl %eax, %ecx25; CHECK-NEXT: xchgb %cl, (%rdi)26; CHECK-NEXT: # kill: def $al killed $al killed $eax27; CHECK-NEXT: retq28; CHECK-NEXT: .LBB0_2:29; CHECK-NEXT: pushq %rax30; CHECK-NEXT: callq __asan_report_store1@PLT31; CHECK-NEXT: #APP32; CHECK-NEXT: #NO_APP33entry:34 %frombool.i.i = zext i1 %b to i835 %0 = ptrtoint ptr %a to i6436 %1 = lshr i64 %0, 337 %2 = add i64 %1, 214745088038 %3 = inttoptr i64 %2 to ptr39 %4 = load i8, ptr %340 %5 = icmp ne i8 %4, 041 br i1 %5, label %6, label %1142 43; <label>:6: ; preds = %entry44 %7 = and i64 %0, 745 %8 = trunc i64 %7 to i846 %9 = icmp sge i8 %8, %447 br i1 %9, label %10, label %1148 49; <label>:10: ; preds = %650 call void @__asan_report_store1(i64 %0)51 call void asm sideeffect "", ""()52 unreachable53 54; <label>:11: ; preds = %6, %entry55 store atomic i8 %frombool.i.i, ptr %a seq_cst, align 156 ret i1 %b57}58 59declare void @__asan_report_store1(i64)60