forked from OSchip/llvm-project
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
|
|
}
|
|
|