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