Mercurial > hg > CbC > CbC_llvm
comparison llvm/test/Feature/varargs.ll @ 150:1d019706d866
LLVM10
| author | anatofuz |
|---|---|
| date | Thu, 13 Feb 2020 15:10:13 +0900 |
| parents | |
| children | 1f2b6ac9f198 |
comparison
equal
deleted
inserted
replaced
| 147:c2174574ed3a | 150:1d019706d866 |
|---|---|
| 1 ; RUN: llvm-as < %s | 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 | |
| 8 declare void @llvm.va_start(i8*) | |
| 9 | |
| 10 declare void @llvm.va_copy(i8*, i8*) | |
| 11 | |
| 12 declare void @llvm.va_end(i8*) | |
| 13 | |
| 14 define i32 @test(i32 %X, ...) { | |
| 15 %ap = alloca i8* ; <i8**> [#uses=4] | |
| 16 %va.upgrd.1 = bitcast i8** %ap to i8* ; <i8*> [#uses=1] | |
| 17 call void @llvm.va_start( i8* %va.upgrd.1 ) | |
| 18 %tmp = va_arg i8** %ap, i32 ; <i32> [#uses=1] | |
| 19 %aq = alloca i8* ; <i8**> [#uses=2] | |
| 20 %va0.upgrd.2 = bitcast i8** %aq to i8* ; <i8*> [#uses=1] | |
| 21 %va1.upgrd.3 = bitcast i8** %ap to i8* ; <i8*> [#uses=1] | |
| 22 call void @llvm.va_copy( i8* %va0.upgrd.2, i8* %va1.upgrd.3 ) | |
| 23 %va.upgrd.4 = bitcast i8** %aq to i8* ; <i8*> [#uses=1] | |
| 24 call void @llvm.va_end( i8* %va.upgrd.4 ) | |
| 25 %va.upgrd.5 = bitcast i8** %ap to i8* ; <i8*> [#uses=1] | |
| 26 call void @llvm.va_end( i8* %va.upgrd.5 ) | |
| 27 ret i32 %tmp | |
| 28 } | |
| 29 |