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llvm-mirror/test/CodeGen/WebAssembly/unsupported-function-bitcasts.ll
Wouter van Oortmerssen c7f8ab2cc1 [WebAssembly] Added default stack-only instruction mode for MC.
Summary:
Made it convert from register to stack based instructions, and removed the registers.
Fixes to related code that was expecting register based instructions.
Added the correct testing flag to all tests, depending on what the
format they were expecting so far.
Translated one test to stack format as example: reg-stackify-stack.ll

tested:
llvm-lit -v `find test -name WebAssembly`
unittests/MC/*

Reviewers: dschuff, sunfish

Subscribers: sbc100, jgravelle-google, eraman, aheejin, llvm-commits, jfb

Differential Revision: https://reviews.llvm.org/D51241

llvm-svn: 340750
2018-08-27 15:45:51 +00:00

60 lines
2.0 KiB
LLVM

; RUN: llc < %s -asm-verbose=false -wasm-keep-registers | FileCheck %s
; Test that function pointer casts that require conversions of arguments or
; return types are converted to unreachable.
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
declare i32 @has_i64_arg(i64)
declare i32 @has_ptr_arg(i8*)
define void @test_invalid_rtn() {
entry:
call i32 bitcast (i32 (i64)* @has_i64_arg to i32 (i32)*)(i32 0)
ret void
}
; CHECK-LABEL: test_invalid_rtn:
; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0{{$}}
; CHECK-NEXT: i32.call $push1=, .Lhas_i64_arg_bitcast_invalid@FUNCTION, $pop[[L0]]{{$}}
; CHECK-NEXT: drop $pop1
; CHECK-NEXT: end_function
define void @test_invalid_arg() {
entry:
call i32 bitcast (i32 (i8*)* @has_ptr_arg to i32 (i8)*)(i8 2)
call i32 bitcast (i32 (i8*)* @has_ptr_arg to i32 (i32)*)(i32 2)
call i32 bitcast (i32 (i8*)* @has_ptr_arg to i32 (i64)*)(i64 3)
ret void
}
; CHECK-LABEL: test_invalid_arg:
; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 2{{$}}
; CHECK-NEXT: i32.call $push[[L1:[0-9]+]]=, .Lhas_ptr_arg_bitcast_invalid.1@FUNCTION, $pop[[L0]]{{$}}
; CHECK-NEXT: drop $pop[[L1]]{{$}}
; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 2{{$}}
; CHECK-NEXT: i32.call $push[[L1:[0-9]+]]=, has_ptr_arg@FUNCTION, $pop[[L0]]{{$}}
; CHECK-NEXT: drop $pop[[L1]]{{$}}
; CHECK-NEXT: i64.const $push[[L0:[0-9]+]]=, 3{{$}}
; CHECK-NEXT: i32.call $push[[L1:[0-9]+]]=, .Lhas_ptr_arg_bitcast_invalid@FUNCTION, $pop[[L0]]{{$}}
; CHECK-NEXT: drop $pop[[L1]]{{$}}
; CHECK-NEXT: end_function
; CHECK-LABEL: .Lhas_i64_arg_bitcast_invalid:
; CHECK-NEXT: .param i32
; CHECK-NEXT: .result i32
; CHECK-NEXT: unreachable
; CHECK-NEXT: end_function
; CHECK-LABEL: .Lhas_ptr_arg_bitcast_invalid:
; CHECK-NEXT: .param i64
; CHECK-NEXT: .result i32
; CHECK-NEXT: unreachable
; CHECK-NEXT: end_function
; CHECK-LABEL: .Lhas_ptr_arg_bitcast_invalid.1:
; CHECK-NEXT: .param i32
; CHECK-NEXT: .result i32
; CHECK-NEXT: unreachable
; CHECK-NEXT: end_function