| Anton Korobeynikov | 568afeb | 2012-11-21 17:28:27 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16" |
| 4 | target triple = "msp430---elf" |
| 5 | |
| 6 | declare void @llvm.va_start(i8*) nounwind |
| 7 | declare void @llvm.va_end(i8*) nounwind |
| 8 | declare void @llvm.va_copy(i8*, i8*) nounwind |
| 9 | |
| 10 | define void @va_start(i16 %a, ...) nounwind { |
| 11 | entry: |
| 12 | ; CHECK: va_start: |
| 13 | ; CHECK: sub.w #2, r1 |
| 14 | %vl = alloca i8*, align 2 |
| 15 | %vl1 = bitcast i8** %vl to i8* |
| 16 | ; CHECK-NEXT: mov.w r1, [[REG:r[0-9]+]] |
| 17 | ; CHECK-NEXT: add.w #6, [[REG]] |
| 18 | ; CHECK-NEXT: mov.w [[REG]], 0(r1) |
| 19 | call void @llvm.va_start(i8* %vl1) |
| 20 | call void @llvm.va_end(i8* %vl1) |
| 21 | ret void |
| 22 | } |
| 23 | |
| 24 | define i16 @va_arg(i8* %vl) nounwind { |
| 25 | entry: |
| 26 | ; CHECK: va_arg: |
| 27 | %vl.addr = alloca i8*, align 2 |
| 28 | ; CHECK: mov.w r15, 0(r1) |
| 29 | store i8* %vl, i8** %vl.addr, align 2 |
| 30 | ; CHECK: mov.w r15, [[REG:r[0-9]+]] |
| 31 | ; CHECK-NEXT: add.w #2, [[REG]] |
| 32 | ; CHECK-NEXT: mov.w [[REG]], 0(r1) |
| 33 | %0 = va_arg i8** %vl.addr, i16 |
| 34 | ; CHECK-NEXT: mov.w 0(r15), r15 |
| 35 | ret i16 %0 |
| 36 | } |
| 37 | |
| 38 | define void @va_copy(i8* %vl) nounwind { |
| 39 | entry: |
| 40 | ; CHECK: va_copy: |
| 41 | %vl.addr = alloca i8*, align 2 |
| 42 | %vl2 = alloca i8*, align 2 |
| 43 | ; CHECK: mov.w r15, 2(r1) |
| 44 | store i8* %vl, i8** %vl.addr, align 2 |
| 45 | %0 = bitcast i8** %vl2 to i8* |
| 46 | %1 = bitcast i8** %vl.addr to i8* |
| 47 | ; CHECK-NEXT: mov.w r15, 0(r1) |
| 48 | call void @llvm.va_copy(i8* %0, i8* %1) |
| 49 | ret void |
| 50 | } |