| ; Ignore stderr, we expect warnings there |
| ; RUN: llvm-as < %s 2> /dev/null | opt -instcombine | llvm-dis | \ |
| ; RUN: grep call | notcast |
| ; END. |
| |
| |
| ; Simple case, argument translatable without changing the value |
| declare void @test1a(i8*) |
| |
| define void @test1(i32* %A) { |
| call void bitcast (void (i8*)* @test1a to void (i32*)*)( i32* %A ) |
| ret void |
| } |
| |
| ; More complex case, translate argument because of resolution. This is safe |
| ; because we have the body of the function |
| define void @test2a(i8 %A) { |
| ret void |
| } |
| |
| define i32 @test2(i32 %A) { |
| call void bitcast (void (i8)* @test2a to void (i32)*)( i32 %A ) |
| ret i32 %A |
| } |
| |
| |
| ; Resolving this should insert a cast from sbyte to int, following the C |
| ; promotion rules. |
| declare void @test3a(i8, ...) |
| |
| define void @test3(i8 %A, i8 %B) { |
| call void bitcast (void (i8, ...)* @test3a to void (i8, i8)*)( i8 %A, i8 %B |
| ) |
| ret void |
| } |
| |
| |
| ; test conversion of return value... |
| define i8 @test4a() { |
| ret i8 0 |
| } |
| |
| define i32 @test4() { |
| %X = call i32 bitcast (i8 ()* @test4a to i32 ()*)( ) ; <i32> [#uses=1] |
| ret i32 %X |
| } |
| |
| |
| ; test conversion of return value... no value conversion occurs so we can do |
| ; this with just a prototype... |
| declare i32 @test5a() |
| |
| define i32 @test5() { |
| %X = call i32 @test5a( ) ; <i32> [#uses=1] |
| ret i32 %X |
| } |
| |
| |
| ; test addition of new arguments... |
| declare i32 @test6a(i32) |
| |
| define i32 @test6() { |
| %X = call i32 bitcast (i32 (i32)* @test6a to i32 ()*)( ) ; <i32> [#uses=1] |
| ret i32 %X |
| } |
| |
| |
| ; test removal of arguments, only can happen with a function body |
| define void @test7a() { |
| ret void |
| } |
| |
| define void @test7() { |
| call void bitcast (void ()* @test7a to void (i32)*)( i32 5 ) |
| ret void |
| } |
| |
| |