derek.holloway
7502bf64a4
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67 lines
1.5 KiB
LLVM
67 lines
1.5 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7m-none-eabi -mcpu=cortex-m4 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V7
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; RUN: llc < %s -mtriple=thumbv8m.main-none-eabi | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V8
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; RUN: llc < %s -mtriple=thumbv8m.base-none-eabi | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V8
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; CHECK-LABEL: f0:
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; CHECK-NOT: ldrexd
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define i64 @f0(ptr %p) nounwind readonly {
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entry:
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%0 = load atomic i64, ptr %p seq_cst, align 8
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ret i64 %0
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}
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; CHECK-LABEL: f1:
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; CHECK-NOT: strexd
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define void @f1(ptr %p) nounwind readonly {
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entry:
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store atomic i64 0, ptr %p seq_cst, align 8
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ret void
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}
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; CHECK-LABEL: f2:
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; CHECK-NOT: ldrexd
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; CHECK-NOT: strexd
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define i64 @f2(ptr %p) nounwind readonly {
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entry:
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%0 = atomicrmw add ptr %p, i64 1 seq_cst
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ret i64 %0
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}
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; CHECK-LABEL: f3:
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; CHECK-V7: ldr
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; CHECK-V8: lda
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define i32 @f3(ptr %p) nounwind readonly {
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entry:
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%0 = load atomic i32, ptr %p seq_cst, align 4
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ret i32 %0
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}
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; CHECK-LABEL: f4:
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; CHECK-V7: ldrb
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; CHECK-V8: ldab
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define i8 @f4(ptr %p) nounwind readonly {
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entry:
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%0 = load atomic i8, ptr %p seq_cst, align 4
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ret i8 %0
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}
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; CHECK-LABEL: f5:
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; CHECK-V7: str
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; CHECK-V8: stl
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define void @f5(ptr %p) nounwind readonly {
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entry:
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store atomic i32 0, ptr %p seq_cst, align 4
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ret void
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}
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; CHECK-LABEL: f6:
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; CHECK-V7: ldrex
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; CHECK-V7: strex
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; CHECK-V8: ldaex
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; CHECK-V8: stlex
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define i32 @f6(ptr %p) nounwind readonly {
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entry:
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%0 = atomicrmw add ptr %p, i32 1 seq_cst
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ret i32 %0
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}
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