forked from OSchip/llvm-project
79 lines
1.8 KiB
LLVM
79 lines
1.8 KiB
LLVM
; Ignore stderr, we expect warnings there
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; RUN: llvm-as < %s 2> /dev/null | opt -instcombine | llvm-dis | \
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; RUN: grep call | notcast
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; END.
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; Simple case, argument translatable without changing the value
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declare void @test1a(i8*)
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define void @test1(i32* %A) {
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call void bitcast (void (i8*)* @test1a to void (i32*)*)( i32* %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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define void @test2a(i8 %A) {
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ret void
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}
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define i32 @test2(i32 %A) {
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call void bitcast (void (i8)* @test2a to void (i32)*)( i32 %A )
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ret i32 %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(i8, ...)
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define void @test3(i8 %A, i8 %B) {
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call void bitcast (void (i8, ...)* @test3a to void (i8, i8)*)( i8 %A, i8 %B
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)
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ret void
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}
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; test conversion of return value...
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define i8 @test4a() {
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ret i8 0
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}
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define i32 @test4() {
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%X = call i32 bitcast (i8 ()* @test4a to i32 ()*)( ) ; <i32> [#uses=1]
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ret i32 %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 i32 @test5a()
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define i32 @test5() {
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%X = call i32 @test5a( ) ; <i32> [#uses=1]
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ret i32 %X
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}
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; test addition of new arguments...
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declare i32 @test6a(i32)
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define i32 @test6() {
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%X = call i32 bitcast (i32 (i32)* @test6a to i32 ()*)( ) ; <i32> [#uses=1]
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ret i32 %X
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}
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; test removal of arguments, only can happen with a function body
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define void @test7a() {
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ret void
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}
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define void @test7() {
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call void bitcast (void ()* @test7a to void (i32)*)( i32 5 )
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ret void
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}
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