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gerrit-public.fairphone.software / toolchain / llvm-project / b1554311d3c38d10d064ccf11c6486a87a11ccce / . / llvm / test / CodeGen / WebAssembly / function-bitcasts.ll
blob: e4f8f3fb6ca99e0742401888b1df41875fbe6b64 [file] [log] [blame]
Dan Gohman1b637452017-01-07 00:34:54 +0000[diff] [blame]1; RUN: llc < %s -asm-verbose=false | FileCheck %s
2
3; Test that function pointer casts are replaced with wrappers.
4
5target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
6target triple = "wasm32-unknown-unknown"
7
8; CHECK-LABEL: test:
9; CHECK-NEXT: call .Lbitcast@FUNCTION{{$}}
Derek Schuff7acb42a2017-01-10 21:59:53 +0000[diff] [blame]10; CHECK-NEXT: call .Lbitcast@FUNCTION{{$}}
Dan Gohman1b637452017-01-07 00:34:54 +0000[diff] [blame]11; CHECK-NEXT: call .Lbitcast.1@FUNCTION{{$}}
Dan Gohman0e2ceb82017-01-07 01:50:01 +0000[diff] [blame]12; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0
Dan Gohman1b637452017-01-07 00:34:54 +0000[diff] [blame]13; CHECK-NEXT: call .Lbitcast.2@FUNCTION, $pop[[L0]]{{$}}
Derek Schuff7acb42a2017-01-10 21:59:53 +0000[diff] [blame]14; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, 0
15; CHECK-NEXT: call .Lbitcast.2@FUNCTION, $pop[[L1]]{{$}}
16; CHECK-NEXT: i32.const $push[[L2:[0-9]+]]=, 0
17; CHECK-NEXT: call .Lbitcast.2@FUNCTION, $pop[[L2]]{{$}}
18; CHECK-NEXT: call foo0@FUNCTION
Dan Gohman1b637452017-01-07 00:34:54 +0000[diff] [blame]19; CHECK-NEXT: i32.call $drop=, .Lbitcast.3@FUNCTION{{$}}
20; CHECK-NEXT: call foo2@FUNCTION{{$}}
Derek Schuff7acb42a2017-01-10 21:59:53 +0000[diff] [blame]21; CHECK-NEXT: call foo1@FUNCTION{{$}}
Dan Gohman1b637452017-01-07 00:34:54 +0000[diff] [blame]22; CHECK-NEXT: call foo3@FUNCTION{{$}}
23; CHECK-NEXT: .endfunc
24
25; CHECK-LABEL: .Lbitcast:
26; CHECK-NEXT: .local i32
27; CHECK-NEXT: call has_i32_arg@FUNCTION, $0{{$}}
28; CHECK-NEXT: .endfunc
29
30; CHECK-LABEL: .Lbitcast.1:
31; CHECK-NEXT: call $drop=, has_i32_ret@FUNCTION{{$}}
32; CHECK-NEXT: .endfunc
33
34; CHECK-LABEL: .Lbitcast.2:
35; CHECK-NEXT: .param i32
36; CHECK-NEXT: call foo0@FUNCTION{{$}}
37; CHECK-NEXT: .endfunc
38
39; CHECK-LABEL: .Lbitcast.3:
40; CHECK-NEXT: .result i32
41; CHECK-NEXT: .local i32
42; CHECK-NEXT: call foo1@FUNCTION{{$}}
43; CHECK-NEXT: copy_local $push0=, $0
44; CHECK-NEXT: .endfunc
45
46declare void @has_i32_arg(i32)
47declare i32 @has_i32_ret()
48
49declare void @foo0()
50declare void @foo1()
51declare void @foo2()
52declare void @foo3()
53
54define void @test() {
55entry:
56 call void bitcast (void (i32)* @has_i32_arg to void ()*)()
Derek Schuff7acb42a2017-01-10 21:59:53 +0000[diff] [blame]57 call void bitcast (void (i32)* @has_i32_arg to void ()*)()
Dan Gohman1b637452017-01-07 00:34:54 +0000[diff] [blame]58 call void bitcast (i32 ()* @has_i32_ret to void ()*)()
59 call void bitcast (void ()* @foo0 to void (i32)*)(i32 0)
Derek Schuff7acb42a2017-01-10 21:59:53 +0000[diff] [blame]60 %p = bitcast void ()* @foo0 to void (i32)*
61 call void %p(i32 0)
62 %q = bitcast void ()* @foo0 to void (i32)*
63 call void %q(i32 0)
64 %r = bitcast void (i32)* %q to void ()*
65 call void %r()
Dan Gohman1b637452017-01-07 00:34:54 +0000[diff] [blame]66 %t = call i32 bitcast (void ()* @foo1 to i32 ()*)()
67 call void bitcast (void ()* @foo2 to void ()*)()
Derek Schuff7acb42a2017-01-10 21:59:53 +0000[diff] [blame]68 call void @foo1()
Dan Gohman1b637452017-01-07 00:34:54 +0000[diff] [blame]69 call void @foo3()
Derek Schuff7acb42a2017-01-10 21:59:53 +0000[diff] [blame]70
Dan Gohman1b637452017-01-07 00:34:54 +0000[diff] [blame]71 ret void
72}