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gerrit-public.fairphone.software / platform / external / llvm / e3ff5ada8a8f6cc166ecc45147da0d63c3683026 / . / test / Integer / varargs_bt.ll
blob: 36f96a3494f5a9a9933271d5774a94c821ea7f0f [file] [log] [blame]
Reid Spencerc0948362007-01-16 18:08:22 +0000[diff] [blame]1; RUN: llvm-as %s -o - | llvm-dis > %t1.ll;
2; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
3; RUN: diff %t1.ll %t2.ll
4
5; Demonstrate all of the variable argument handling intrinsic functions plus
6; the va_arg instruction.
7
8implementation
Reid Spencere3ff5ad2007-01-26 08:25:06 +0000[diff] [blame^]9declare void @llvm.va_start(i8** %ap)
10declare void @llvm.va_copy(i8** %aq, i8** %ap)
11declare void @llvm.va_end(i8** %ap)
Reid Spencerc0948362007-01-16 18:08:22 +0000[diff] [blame]12
Reid Spencere3ff5ad2007-01-26 08:25:06 +0000[diff] [blame^]13define i33 @test(i33 %X, ...) {
Reid Spencerc0948362007-01-16 18:08:22 +0000[diff] [blame]14 %ap = alloca i8*
Reid Spencere3ff5ad2007-01-26 08:25:06 +0000[diff] [blame^]15 call void @llvm.va_start(i8** %ap)
Reid Spencerc0948362007-01-16 18:08:22 +0000[diff] [blame]16 %tmp = va_arg i8** %ap, i33
17
18 %aq = alloca i8*
Reid Spencere3ff5ad2007-01-26 08:25:06 +0000[diff] [blame^]19 call void @llvm.va_copy(i8** %aq, i8** %ap)
20 call void @llvm.va_end(i8** %aq)
Reid Spencerc0948362007-01-16 18:08:22 +0000[diff] [blame]21
Reid Spencere3ff5ad2007-01-26 08:25:06 +0000[diff] [blame^]22 call void @llvm.va_end(i8** %ap)
Reid Spencerc0948362007-01-16 18:08:22 +0000[diff] [blame]23 ret i33 %tmp
24}