xref: /llvm-project/llvm/test/CodeGen/ARM/latency.ll (revision 4c3e1e3c4af1d215501a3b42655333a1167f0ab3)
1; RUN: llc -mtriple=thumb-none-eabi %s -o - -mcpu=cortex-m0 -asm-print-latency=1 | FileCheck %s --match-full-lines --check-prefix=ON
2; RUN: llc -mtriple=thumb-none-eabi %s -o - -mcpu=cortex-m0 -asm-print-latency=0 | FileCheck %s --match-full-lines --check-prefix=OFF
3; RUN: llc -mtriple=thumb-none-eabi %s -o - -mcpu=cortex-m0                      | FileCheck %s --match-full-lines --check-prefix=OFF
4
5define i64 @load_i64(ptr %ptr){
6; ON:   ldr     r2, [r0]                        @  Latency: 4
7; ON:   ldr     r1, [r0, #4]                    @  Latency: 4
8; ON:   mov     r0, r2                          @  Latency: 2
9; ON:   bx      lr
10; OFF:  ldr     r2, [r0]
11; OFF:  ldr     r1, [r0, #4]
12; OFF:  mov     r0, r2
13; OFf:  bx      lr
14  %a = load i64, ptr %ptr
15  ret i64 %a
16}
17