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llvm-project/llvm/test/CodeGen/WebAssembly/main-with-args.ll

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[WebAssembly] Re-enable main-function signature rewriting Re-enable the code to rewrite main-function signatures into "int main(int argc, char *argv[])", but limited to only handling the case of "int main(void)", so that it doesn't silently strip an argument in the "int main(int argc, char *argv[], char *envp[])" case. This allows main to be called by C startup code, since WebAssembly requires caller and callee signatures to match, so it can't rely on passing main a different number of arguments than it expects. Differential Revision: https://reviews.llvm.org/D57323 llvm-svn: 352479
2019-01-29 18:53:42 +08:00
; RUN: llc < %s -asm-verbose=false | FileCheck %s
[WebAssemby] Re-apply r320041: "Support main functions with alternate signatures." This includes a fix so that it doesn't transform declarations, and it puts the functionality under control of a command-line option which is off by default to avoid breaking existing setups. llvm-svn: 320196
2017-12-09 05:18:21 +08:00
[WebAssembly] Fix signature of `main` in FixFunctionBitcasts Also, add a check to ensure that when main has the expected signature we do not create a wrapper. Differential Revision: https://reviews.llvm.org/D51562 llvm-svn: 342157
2018-09-14 01:13:10 +08:00
; Test that main function with expected signature is not wrapped
[WebAssemby] Re-apply r320041: "Support main functions with alternate signatures." This includes a fix so that it doesn't transform declarations, and it puts the functionality under control of a command-line option which is off by default to avoid breaking existing setups. llvm-svn: 320196
2017-12-09 05:18:21 +08:00
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
[WebAsembly] Update default triple in test files to wasm32-unknown-unkown. Summary: The final -wasm component has been the default for some time now. Subscribers: jfb, dschuff, jgravelle-google, eraman, aheejin, JDevlieghere, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D46342 llvm-svn: 332007
2018-05-11 01:49:11 +08:00
target triple = "wasm32-unknown-unknown"
[WebAssemby] Re-apply r320041: "Support main functions with alternate signatures." This includes a fix so that it doesn't transform declarations, and it puts the functionality under control of a command-line option which is off by default to avoid breaking existing setups. llvm-svn: 320196
2017-12-09 05:18:21 +08:00
[WebAssembly] Fix signature of `main` in FixFunctionBitcasts Also, add a check to ensure that when main has the expected signature we do not create a wrapper. Differential Revision: https://reviews.llvm.org/D51562 llvm-svn: 342157
2018-09-14 01:13:10 +08:00
define i32 @main(i32 %a, i8** %b) {
ret i32 0
[WebAssemby] Re-apply r320041: "Support main functions with alternate signatures." This includes a fix so that it doesn't transform declarations, and it puts the functionality under control of a command-line option which is off by default to avoid breaking existing setups. llvm-svn: 320196
2017-12-09 05:18:21 +08:00
}
; CHECK-LABEL: main:
[WebAssembly] replaced .param/.result by .functype Summary: This makes it easier/cleaner to generate a single signature from this directive. Also: - Adds the symbol name, such that we don't depend on the location of this directive anymore. - Actually constructs the signature in the assembler, and make the assembler own it. - Refactor the use of MVT vs ValType in the streamer and assembler to require less conversions overall. - Changed 700 or so tests to use it. Reviewers: sbc100, dschuff Subscribers: jgravelle-google, eraman, aheejin, sunfish, jfb, llvm-commits Differential Revision: https://reviews.llvm.org/D54652 llvm-svn: 347228
2018-11-20 01:10:36 +08:00
; CHECK-NEXT: .functype main (i32, i32) -> (i32)
[WebAssembly] Fix signature of `main` in FixFunctionBitcasts Also, add a check to ensure that when main has the expected signature we do not create a wrapper. Differential Revision: https://reviews.llvm.org/D51562 llvm-svn: 342157
2018-09-14 01:13:10 +08:00
; CHECK-NOT: __original_main: