42 lines
1.2 KiB
LLVM
42 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=m68k-linux -verify-machineinstrs | FileCheck %s
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%struct.va_list = type { i8* }
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define i32 @test(i32 %X, ...) {
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; Initialize variable argument processing
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; CHECK-LABEL: test:
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; CHECK: .cfi_startproc
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; CHECK-NEXT: ; %bb.0:
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; CHECK-NEXT: suba.l #8, %sp
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; CHECK-NEXT: .cfi_def_cfa_offset -12
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; CHECK-NEXT: lea (16,%sp), %a0
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; CHECK-NEXT: move.l %a0, %d0
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; CHECK-NEXT: add.l #4, %d0
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; CHECK-NEXT: move.l %d0, (4,%sp)
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; CHECK-NEXT: move.l %d0, (0,%sp)
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; CHECK-NEXT: move.l (16,%sp), %d0
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; CHECK-NEXT: adda.l #8, %sp
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; CHECK-NEXT: rts
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%ap = alloca %struct.va_list
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%ap2 = bitcast %struct.va_list* %ap to i8*
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call void @llvm.va_start(i8* %ap2)
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; Read a single integer argument
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%tmp = va_arg i8* %ap2, i32
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; Demonstrate usage of llvm.va_copy and llvm.va_end
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%aq = alloca i8*
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%aq2 = bitcast i8** %aq to i8*
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call void @llvm.va_copy(i8* %aq2, i8* %ap2)
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call void @llvm.va_end(i8* %aq2)
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; Stop processing of arguments.
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call void @llvm.va_end(i8* %ap2)
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ret i32 %tmp
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}
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declare void @llvm.va_start(i8*)
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declare void @llvm.va_copy(i8*, i8*)
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declare void @llvm.va_end(i8*)
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