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| author | Anton Korobeynikov <asl@math.spbu.ru> | 2012-11-21 17:28:27 +0000 |
|---|---|---|
| committer | Anton Korobeynikov <asl@math.spbu.ru> | 2012-11-21 17:28:27 +0000 |
| commit | 0ae61240341ca76e1329f251c64d2f475fa89278 (patch) | |
| tree | 2b982b4a637f566b0a5c4246491b9cbf7298f75e /test | |
| parent | 6cbeb4d839a7fc465c651f0df0b090052cd87a5c (diff) | |
| download | external_llvm-0ae61240341ca76e1329f251c64d2f475fa89278.zip external_llvm-0ae61240341ca76e1329f251c64d2f475fa89278.tar.gz external_llvm-0ae61240341ca76e1329f251c64d2f475fa89278.tar.bz2 | |
Add support for varargs functions for msp430.
Patch by Job Noorman!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168440 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/MSP430/vararg.ll | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/test/CodeGen/MSP430/vararg.ll b/test/CodeGen/MSP430/vararg.ll new file mode 100644 index 0000000..603d3ec --- /dev/null +++ b/test/CodeGen/MSP430/vararg.ll @@ -0,0 +1,50 @@ +; RUN: llc < %s | FileCheck %s + +target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16" +target triple = "msp430---elf" + +declare void @llvm.va_start(i8*) nounwind +declare void @llvm.va_end(i8*) nounwind +declare void @llvm.va_copy(i8*, i8*) nounwind + +define void @va_start(i16 %a, ...) nounwind { +entry: +; CHECK: va_start: +; CHECK: sub.w #2, r1 + %vl = alloca i8*, align 2 + %vl1 = bitcast i8** %vl to i8* +; CHECK-NEXT: mov.w r1, [[REG:r[0-9]+]] +; CHECK-NEXT: add.w #6, [[REG]] +; CHECK-NEXT: mov.w [[REG]], 0(r1) + call void @llvm.va_start(i8* %vl1) + call void @llvm.va_end(i8* %vl1) + ret void +} + +define i16 @va_arg(i8* %vl) nounwind { +entry: +; CHECK: va_arg: + %vl.addr = alloca i8*, align 2 +; CHECK: mov.w r15, 0(r1) + store i8* %vl, i8** %vl.addr, align 2 +; CHECK: mov.w r15, [[REG:r[0-9]+]] +; CHECK-NEXT: add.w #2, [[REG]] +; CHECK-NEXT: mov.w [[REG]], 0(r1) + %0 = va_arg i8** %vl.addr, i16 +; CHECK-NEXT: mov.w 0(r15), r15 + ret i16 %0 +} + +define void @va_copy(i8* %vl) nounwind { +entry: +; CHECK: va_copy: + %vl.addr = alloca i8*, align 2 + %vl2 = alloca i8*, align 2 +; CHECK: mov.w r15, 2(r1) + store i8* %vl, i8** %vl.addr, align 2 + %0 = bitcast i8** %vl2 to i8* + %1 = bitcast i8** %vl.addr to i8* +; CHECK-NEXT: mov.w r15, 0(r1) + call void @llvm.va_copy(i8* %0, i8* %1) + ret void +} |