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https://github.com/RPCS3/llvm-mirror.git
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c7f8ab2cc1
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
167 lines
5.8 KiB
LLVM
167 lines
5.8 KiB
LLVM
; RUN: llc < %s -asm-verbose=false -wasm-disable-explicit-locals -wasm-keep-registers -enable-emscripten-cxx-exceptions -wasm-temporary-workarounds=false | FileCheck %s
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; Test that function pointer casts are replaced with wrappers.
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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declare void @has_i32_arg(i32)
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declare i32 @has_i32_ret()
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declare void @vararg(...)
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declare void @plain(i32)
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declare void @foo0()
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declare void @foo1()
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declare void @foo2()
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declare void @foo3()
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; CHECK-LABEL: test:
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; CHECK-NEXT: call .Lhas_i32_arg_bitcast@FUNCTION{{$}}
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; CHECK-NEXT: call .Lhas_i32_arg_bitcast@FUNCTION{{$}}
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; CHECK-NEXT: call .Lhas_i32_ret_bitcast@FUNCTION{{$}}
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0
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; CHECK-NEXT: call .Lfoo0_bitcast@FUNCTION, $pop[[L0]]{{$}}
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; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, 0
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; CHECK-NEXT: call .Lfoo0_bitcast@FUNCTION, $pop[[L1]]{{$}}
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; CHECK-NEXT: i32.const $push[[L2:[0-9]+]]=, 0
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; CHECK-NEXT: call .Lfoo0_bitcast@FUNCTION, $pop[[L2]]{{$}}
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; CHECK-NEXT: call foo0@FUNCTION
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; CHECK-NEXT: i32.call $drop=, .Lfoo1_bitcast@FUNCTION{{$}}
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; CHECK-NEXT: call foo2@FUNCTION{{$}}
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; CHECK-NEXT: call foo1@FUNCTION{{$}}
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; CHECK-NEXT: call foo3@FUNCTION{{$}}
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; CHECK-NEXT: end_function
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define void @test() {
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entry:
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call void bitcast (void (i32)* @has_i32_arg to void ()*)()
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call void bitcast (void (i32)* @has_i32_arg to void ()*)()
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call void bitcast (i32 ()* @has_i32_ret to void ()*)()
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call void bitcast (void ()* @foo0 to void (i32)*)(i32 0)
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%p = bitcast void ()* @foo0 to void (i32)*
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call void %p(i32 0)
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%q = bitcast void ()* @foo0 to void (i32)*
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call void %q(i32 0)
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%r = bitcast void (i32)* %q to void ()*
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call void %r()
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%t = call i32 bitcast (void ()* @foo1 to i32 ()*)()
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call void bitcast (void ()* @foo2 to void ()*)()
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call void @foo1()
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call void @foo3()
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ret void
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}
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; CHECK-LABEL: test_varargs:
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; CHECK: set_global
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; CHECK: i32.const $push[[L3:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: call .Lvararg_bitcast@FUNCTION, $pop[[L3]]{{$}}
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; CHECK-NEXT: i32.const $push[[L4:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: i32.store 0($[[L5:[0-9]+]]), $pop[[L4]]{{$}}
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; CHECK-NEXT: call .Lplain_bitcast@FUNCTION, $[[L5]]{{$}}
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define void @test_varargs() {
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call void bitcast (void (...)* @vararg to void (i32)*)(i32 0)
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call void (...) bitcast (void (i32)* @plain to void (...)*)(i32 0)
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ret void
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}
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; Don't use wrappers when the value is stored in memory
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@global_func = hidden local_unnamed_addr global void ()* null
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; CHECK-LABEL: test_store:
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, has_i32_ret@FUNCTION{{$}}
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; CHECK-NEXT: i32.store global_func($pop[[L0]]), $pop[[L1]]{{$}}
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define void @test_store() {
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%1 = bitcast i32 ()* @has_i32_ret to void ()*
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store void ()* %1, void ()** @global_func
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ret void
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}
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; CHECK-LABEL: test_load:
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; CHECK-NEXT: result i32{{$}}
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: i32.load $push[[L1:[0-9]+]]=, global_func($pop[[L0]]){{$}}
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; CHECK-NEXT: i32.call_indirect $push{{[0-9]+}}=, $pop[[L1]]{{$}}
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define i32 @test_load() {
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%1 = load i32 ()*, i32 ()** bitcast (void ()** @global_func to i32 ()**)
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%2 = call i32 %1()
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ret i32 %2
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}
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; Don't use wrappers when the value is passed to a function call
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declare void @call_func(i32 ()*)
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; CHECK-LABEL: test_argument:
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, has_i32_ret@FUNCTION{{$}}
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; CHECK-NEXT: call call_func@FUNCTION, $pop[[L0]]{{$}}
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; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, has_i32_arg@FUNCTION{{$}}
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; CHECK-NEXT: call call_func@FUNCTION, $pop[[L1]]{{$}}
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define void @test_argument() {
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call void @call_func(i32 ()* @has_i32_ret)
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call void @call_func(i32 ()* bitcast (void (i32)* @has_i32_arg to i32 ()*))
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ret void
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}
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; Invokes should be treated like calls
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; CHECK-LABEL: test_invoke:
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; CHECK: i32.const $push[[L1:[0-9]+]]=, call_func@FUNCTION{{$}}
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, has_i32_ret@FUNCTION{{$}}
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; CHECK-NEXT: call "__invoke_void_i32()*"@FUNCTION, $pop[[L1]], $pop[[L0]]{{$}}
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; CHECK: i32.const $push[[L3:[0-9]+]]=, call_func@FUNCTION{{$}}
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; CHECK-NEXT: i32.const $push[[L2:[0-9]+]]=, has_i32_arg@FUNCTION{{$}}
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; CHECK-NEXT: call "__invoke_void_i32()*"@FUNCTION, $pop[[L3]], $pop[[L2]]{{$}}
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; CHECK: i32.const $push[[L4:[0-9]+]]=, .Lhas_i32_arg_bitcast@FUNCTION{{$}}
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; CHECK-NEXT: call __invoke_void@FUNCTION, $pop[[L4]]{{$}}
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declare i32 @personality(...)
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define void @test_invoke() personality i32 (...)* @personality {
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entry:
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invoke void @call_func(i32 ()* @has_i32_ret)
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to label %cont unwind label %lpad
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cont:
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invoke void @call_func(i32 ()* bitcast (void (i32)* @has_i32_arg to i32 ()*))
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to label %cont2 unwind label %lpad
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cont2:
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invoke void bitcast (void (i32)* @has_i32_arg to void ()*)()
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to label %end unwind label %lpad
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lpad:
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%0 = landingpad { i8*, i32 }
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catch i8* null
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br label %end
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end:
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ret void
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}
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; CHECK-LABEL: .Lhas_i32_arg_bitcast:
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; CHECK-NEXT: call has_i32_arg@FUNCTION, $0{{$}}
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lhas_i32_ret_bitcast:
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; CHECK-NEXT: call $drop=, has_i32_ret@FUNCTION{{$}}
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lvararg_bitcast:
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; CHECK: call vararg@FUNCTION, $1{{$}}
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; CHECK: end_function
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; CHECK-LABEL: .Lplain_bitcast:
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; CHECK: call plain@FUNCTION, $1{{$}}
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; CHECK: end_function
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; CHECK-LABEL: .Lfoo0_bitcast:
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; CHECK-NEXT: .param i32
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; CHECK-NEXT: call foo0@FUNCTION{{$}}
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lfoo1_bitcast:
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; CHECK-NEXT: .result i32
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; CHECK-NEXT: call foo1@FUNCTION{{$}}
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; CHECK-NEXT: copy_local $push0=, $0
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; CHECK-NEXT: end_function
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