1 ; Ignore stderr, we expect warnings there
2 ; RUN: opt < %s -instcombine 2> /dev/null -S | FileCheck %s
4 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
6 ; Simple case, argument translatable without changing the value
7 declare void @test1a(i8*)
9 define void @test1(i32* %A) {
10 call void bitcast (void (i8*)* @test1a to void (i32*)*)( i32* %A )
12 ; CHECK: %1 = bitcast i32* %A to i8*
13 ; CHECK: call void @test1a(i8* %1)
17 ; More complex case, translate argument because of resolution. This is safe
18 ; because we have the body of the function
19 define void @test2a(i8 %A) {
24 define i32 @test2(i32 %A) {
25 call void bitcast (void (i8)* @test2a to void (i32)*)( i32 %A )
27 ; CHECK: %1 = trunc i32 %A to i8
28 ; CHECK: call void @test2a(i8 %1)
33 ; test conversion of return value...
40 %X = call i32 bitcast (i8 ()* @test4a to i32 ()*)( ) ; <i32> [#uses=1]
42 ; CHECK: %X = call i8 @test4a()
43 ; CHECK: %1 = zext i8 %X to i32
48 ; test conversion of return value... no value conversion occurs so we can do
49 ; this with just a prototype...
53 %X = call i32 @test5a( ) ; <i32> [#uses=1]
55 ; CHECK: %X = call i32 @test5a()
60 ; test addition of new arguments...
61 declare i32 @test6a(i32)
64 %X = call i32 bitcast (i32 (i32)* @test6a to i32 ()*)( )
66 ; CHECK: %X = call i32 @test6a(i32 0)
71 ; test removal of arguments, only can happen with a function body
72 define void @test7a() {
77 define void @test7() {
78 call void bitcast (void ()* @test7a to void (i32)*)( i32 5 )
80 ; CHECK: call void @test7a()
86 declare void @test8a()
90 to label %invoke.cont unwind label %try.handler
92 invoke.cont: ; preds = %entry
95 try.handler: ; preds = %entry
96 %exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
101 declare i32 @__gxx_personality_v0(...)
103 ; Don't turn this into "unreachable": the callee and caller don't agree in
104 ; calling conv, but the implementation of test8a may actually end up using the
105 ; right calling conv.
107 ; CHECK-NEXT: invoke void @test8a()
111 ; Don't turn this into a direct call, because test9x is just a prototype and
112 ; doing so will make it varargs.
114 declare i8* @test9x(i8*, i8*, ...) noredzone
115 define i8* @test9(i8* %arg, i8* %tmp3) nounwind ssp noredzone {
117 %call = call i8* bitcast (i8* (i8*, i8*, ...)* @test9x to i8* (i8*, i8*)*)(i8* %arg, i8* %tmp3) noredzone
120 ; CHECK: call i8* bitcast