97 lines
2.9 KiB
LLVM
97 lines
2.9 KiB
LLVM
|
; RUN: llc < %s -march=avr | FileCheck %s
|
||
|
|
|
||
|
|
; CHECK-LABEL: relax_breq
|
||
|
|
; CHECK: cpi r{{[0-9]+}}, 0
|
||
|
|
; CHECK: brne .LBB0_1
|
||
|
|
; CHECK: rjmp .LBB0_2
|
||
|
|
; .LBB0_1:
|
||
|
|
|
||
|
|
define i8 @relax_breq(i1 %a) {
|
||
|
|
entry-block:
|
||
|
|
br i1 %a, label %hello, label %finished
|
||
|
|
|
||
|
|
hello:
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
br label %finished
|
||
|
|
finished:
|
||
|
|
ret i8 3
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: no_relax_breq
|
||
|
|
; CHECK: cpi r{{[0-9]+}}, 0
|
||
|
|
; CHECK: breq [[END_BB:.LBB[0-9]+_[0-9]+]]
|
||
|
|
; CHECK: nop
|
||
|
|
; ...
|
||
|
|
; .LBB0_1:
|
||
|
|
define i8 @no_relax_breq(i1 %a) {
|
||
|
|
entry-block:
|
||
|
|
br i1 %a, label %hello, label %finished
|
||
|
|
|
||
|
|
hello:
|
||
|
|
; There are not enough NOPs to require relaxation.
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
call void asm sideeffect "nop", ""()
|
||
|
|
br label %finished
|
||
|
|
finished:
|
||
|
|
ret i8 3
|
||
|
|
}
|
||
|
|
|