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: %tmp = bitcast i32* %A to i8*
13 ; CHECK: call void @test1a(i8* %tmp)
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: %tmp = trunc i32 %A to i8
28 ; CHECK: call void @test2a(i8 %tmp)
33 ; Resolving this should insert a cast from sbyte to int, following the C
35 declare void @test3a(i8, ...)
37 define void @test3(i8 %A, i8 %B) {
38 call void bitcast (void (i8, ...)* @test3a to void (i8, i8)*)( i8 %A, i8 %B
41 ; CHECK: %tmp = zext i8 %B to i32
42 ; CHECK: call void (i8, ...)* @test3a(i8 %A, i32 %tmp)
47 ; test conversion of return value...
54 %X = call i32 bitcast (i8 ()* @test4a to i32 ()*)( ) ; <i32> [#uses=1]
56 ; CHECK: %X1 = call i8 @test4a()
57 ; CHECK: %tmp = zext i8 %X1 to i32
62 ; test conversion of return value... no value conversion occurs so we can do
63 ; this with just a prototype...
67 %X = call i32 @test5a( ) ; <i32> [#uses=1]
69 ; CHECK: %X = call i32 @test5a()
74 ; test addition of new arguments...
75 declare i32 @test6a(i32)
78 %X = call i32 bitcast (i32 (i32)* @test6a to i32 ()*)( )
80 ; CHECK: %X1 = call i32 @test6a(i32 0)
85 ; test removal of arguments, only can happen with a function body
86 define void @test7a() {
91 define void @test7() {
92 call void bitcast (void ()* @test7a to void (i32)*)( i32 5 )
94 ; CHECK: call void @test7a()
100 declare void @test8a()
102 define i8* @test8() {
103 invoke void @test8a()
104 to label %invoke.cont unwind label %try.handler
106 invoke.cont: ; preds = %entry
109 try.handler: ; preds = %entry
113 ; Don't turn this into "unreachable": the callee and caller don't agree in
114 ; calling conv, but the implementation of test8a may actually end up using the
115 ; right calling conv.
117 ; CHECK-NEXT: invoke void @test8a()