115 lines
3.4 KiB
LLVM
115 lines
3.4 KiB
LLVM
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; RUN: llc < %s -march=avr | FileCheck %s
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; RUN: llc < %s -march=avr -mcpu=avr5 | FileCheck -check-prefix=AVR5 %s
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; CHECK-LABEL: relax_breq
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; CHECK: cpi r{{[0-9]+}}, 0
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; CHECK: brne .LBB0_1
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; CHECK: rjmp .LBB0_2
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; CHECK: .LBB0_1:
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; CHECK: nop
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; CHECK: .LBB0_2:
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; AVR5-LABEL: relax_breq
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; AVR5: andi r24, 1
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; AVR5: cpi r24, 0
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; AVR5: brne .LBB0_1
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; AVR5: rjmp .LBB0_2
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; AVR5: .LBB0_1:
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; AVR5: nop
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; AVR5: .LBB0_2:
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define i8 @relax_breq(i1 %a) {
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entry-block:
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br i1 %a, label %hello, label %finished
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hello:
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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br label %finished
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finished:
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ret i8 3
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}
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; CHECK-LABEL: no_relax_breq
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; CHECK: cpi r{{[0-9]+}}, 0
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; CHECK: breq [[END_BB:.LBB[0-9]+_[0-9]+]]
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; CHECK: nop
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; CHECK: [[END_BB]]
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; AVR5-LABEL: no_relax_breq
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; AVR5: cpi r{{[0-9]+}}, 0
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; AVR5: breq [[END_BB:.LBB[0-9]+_[0-9]+]]
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; AVR5: nop
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; AVR5: [[END_BB]]
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define i8 @no_relax_breq(i1 %a) {
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entry-block:
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br i1 %a, label %hello, label %finished
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hello:
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; There are not enough NOPs to require relaxation.
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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call void asm sideeffect "nop", ""()
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br label %finished
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finished:
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ret i8 3
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}
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