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Diffstat (limited to 'test/Feature/varargs.ll')
| -rw-r--r-- | test/Feature/varargs.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/Feature/varargs.ll b/test/Feature/varargs.ll new file mode 100644 index 0000000..b9317df --- /dev/null +++ b/test/Feature/varargs.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as < %s | llvm-dis > %t1.ll +; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll +; RUN: diff %t1.ll %t2.ll + +; Demonstrate all of the variable argument handling intrinsic functions plus +; the va_arg instruction. + +declare void @llvm.va_start(i8*) + +declare void @llvm.va_copy(i8*, i8*) + +declare void @llvm.va_end(i8*) + +define i32 @test(i32 %X, ...) { + %ap = alloca i8* ; <i8**> [#uses=4] + %va.upgrd.1 = bitcast i8** %ap to i8* ; <i8*> [#uses=1] + call void @llvm.va_start( i8* %va.upgrd.1 ) + %tmp = va_arg i8** %ap, i32 ; <i32> [#uses=1] + %aq = alloca i8* ; <i8**> [#uses=2] + %va0.upgrd.2 = bitcast i8** %aq to i8* ; <i8*> [#uses=1] + %va1.upgrd.3 = bitcast i8** %ap to i8* ; <i8*> [#uses=1] + call void @llvm.va_copy( i8* %va0.upgrd.2, i8* %va1.upgrd.3 ) + %va.upgrd.4 = bitcast i8** %aq to i8* ; <i8*> [#uses=1] + call void @llvm.va_end( i8* %va.upgrd.4 ) + %va.upgrd.5 = bitcast i8** %ap to i8* ; <i8*> [#uses=1] + call void @llvm.va_end( i8* %va.upgrd.5 ) + ret i32 %tmp +} + |
