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1; RUN: llc < %s -mtriple=thumbv7m-none-eabi -mcpu=cortex-m4 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V72; RUN: llc < %s -mtriple=thumbv8m.main-none-eabi | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V83; RUN: llc < %s -mtriple=thumbv8m.base-none-eabi | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V84 5; CHECK-LABEL: f0:6; CHECK-NOT: ldrexd7define i64 @f0(ptr %p) nounwind readonly {8entry:9 %0 = load atomic i64, ptr %p seq_cst, align 810 ret i64 %011}12 13; CHECK-LABEL: f1:14; CHECK-NOT: strexd15define void @f1(ptr %p) nounwind readonly {16entry:17 store atomic i64 0, ptr %p seq_cst, align 818 ret void19}20 21; CHECK-LABEL: f2:22; CHECK-NOT: ldrexd23; CHECK-NOT: strexd24define i64 @f2(ptr %p) nounwind readonly {25entry:26 %0 = atomicrmw add ptr %p, i64 1 seq_cst27 ret i64 %028}29 30; CHECK-LABEL: f3:31; CHECK-V7: ldr32; CHECK-V8: lda33define i32 @f3(ptr %p) nounwind readonly {34entry:35 %0 = load atomic i32, ptr %p seq_cst, align 436 ret i32 %037}38 39; CHECK-LABEL: f4:40; CHECK-V7: ldrb41; CHECK-V8: ldab42define i8 @f4(ptr %p) nounwind readonly {43entry:44 %0 = load atomic i8, ptr %p seq_cst, align 445 ret i8 %046}47 48; CHECK-LABEL: f5:49; CHECK-V7: str50; CHECK-V8: stl51define void @f5(ptr %p) nounwind readonly {52entry:53 store atomic i32 0, ptr %p seq_cst, align 454 ret void55}56 57; CHECK-LABEL: f6:58; CHECK-V7: ldrex59; CHECK-V7: strex60; CHECK-V8: ldaex61; CHECK-V8: stlex62define i32 @f6(ptr %p) nounwind readonly {63entry:64 %0 = atomicrmw add ptr %p, i32 1 seq_cst65 ret i32 %066}67