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57 lines
1.5 KiB
LLVM
57 lines
1.5 KiB
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep call | not grep cast
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implementation
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; Simple case, argument translatable without changing the value
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declare void %test1a(sbyte *%A)
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void %test1(int *%A) {
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call void(int*)* cast (void(sbyte*)* %test1a to void(int*)*)(int* %A)
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ret void
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}
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; More complex case, translate argument because of resolution. This is safe
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; because we have the body of the function
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void %test2a(sbyte %A) { ret void }
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int %test2(int %A) {
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call void(int)* cast (void(sbyte)* %test2a to void(int)*)(int %A)
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ret int %A
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}
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; Resolving this should insert a cast from sbyte to int, following the C
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; promotion rules.
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declare void %test3a(sbyte %A, ...)
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void %test3(sbyte %A, sbyte %B) {
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call void(sbyte, sbyte)* cast (void(sbyte,...)* %test3a to void(sbyte,sbyte)*)(sbyte %A, sbyte %B)
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ret void
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}
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; test conversion of return value...
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sbyte %test4a() { ret sbyte 0 }
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int %test4() {
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%X = call int()* cast (sbyte()* %test4a to int()*)()
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ret int %X
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}
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; test conversion of return value... no value conversion occurs so we can do
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; this with just a prototype...
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declare uint %test5a()
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int %test5() {
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%X = call int()* cast (uint()* %test5a to int()*)()
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ret int %X
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}
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; test addition of new arguments...
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declare int %test6a(int %X)
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int %test6() {
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%X = call int()* cast (int(int)* %test6a to int()*)()
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ret int %X
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}
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; test removal of arguments, only can happen with a function body
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void %test7a() { ret void }
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void %test7() {
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call void(int)* cast (void()* %test7a to void(int)*)(int 5)
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ret void
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}
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