derek.holloway
7502bf64a4
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50 lines
1.3 KiB
LLVM
50 lines
1.3 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s | FileCheck %s
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target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"
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target triple = "msp430---elf"
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declare void @llvm.va_start(ptr) nounwind
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declare void @llvm.va_end(ptr) nounwind
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declare void @llvm.va_copy(ptr, ptr) nounwind
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define void @va_start(i16 %a, ...) nounwind {
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entry:
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; CHECK-LABEL: va_start:
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; CHECK: sub #2, r1
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%vl = alloca ptr, align 2
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%vl1 = bitcast ptr %vl to ptr
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; CHECK-NEXT: mov r1, [[REG:r[0-9]+]]
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; CHECK-NEXT: add #6, [[REG]]
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; CHECK-NEXT: mov [[REG]], 0(r1)
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call void @llvm.va_start(ptr %vl1)
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call void @llvm.va_end(ptr %vl1)
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ret void
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}
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define i16 @va_arg(ptr %vl) nounwind {
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entry:
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; CHECK-LABEL: va_arg:
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%vl.addr = alloca ptr, align 2
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store ptr %vl, ptr %vl.addr, align 2
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; CHECK: mov r12, [[REG:r[0-9]+]]
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; CHECK-NEXT: incd [[REG]]
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; CHECK-NEXT: mov [[REG]], 0(r1)
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%0 = va_arg ptr %vl.addr, i16
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; CHECK-NEXT: mov 0(r12), r12
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ret i16 %0
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}
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define void @va_copy(ptr %vl) nounwind {
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entry:
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; CHECK-LABEL: va_copy:
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%vl.addr = alloca ptr, align 2
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%vl2 = alloca ptr, align 2
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; CHECK-DAG: mov r12, 2(r1)
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store ptr %vl, ptr %vl.addr, align 2
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%0 = bitcast ptr %vl2 to ptr
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%1 = bitcast ptr %vl.addr to ptr
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; CHECK-DAG: mov r12, 0(r1)
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call void @llvm.va_copy(ptr %0, ptr %1)
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ret void
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}
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