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llvm-project/llvm/test/CodeGen/WebAssembly/unused-argument.ll

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WebAssembly: handle unused function arguments. Subscribers: llvm-commits, sunfish, jfb Differential Revision: http://reviews.llvm.org/D11684 llvm-svn: 243770
2015-08-01 02:13:27 +08:00
; RUN: llc < %s -asm-verbose=false | FileCheck %s
; Make sure that argument offsets are correct even if some arguments are unused.
[WebAssembly] Use the default alignment for SIMD types. Previously WebAssembly's datalayout string had -v128:8:128. This had been an attempt to declare a certain level of support for unaligned SIMD accesses. However, clang makes its own determinations for SIMD alignment that are independent of the datalayout string, so this wasn't actually meaningful. llvm-svn: 245494
2015-08-20 04:30:20 +08:00
target datalayout = "e-p:32:32-i64:64-n32:64-S128"
WebAssembly: handle unused function arguments. Subscribers: llvm-commits, sunfish, jfb Differential Revision: http://reviews.llvm.org/D11684 llvm-svn: 243770
2015-08-01 02:13:27 +08:00
target triple = "wasm32-unknown-unknown"
[WebAssembly] Switch to a more traditional assembly syntax This new syntax is built around putting each instruction on its own line in a "mnemonic op, op, op" like syntax. It also uses conventional data section directives like ".byte" and so on rather than requiring everything to be in hierarchical S-expression format. This is a more natural syntax for a ".s" file format from the perspective of LLVM MC and related tools, while remaining easy to translate into other forms as needed. llvm-svn: 249364
2015-10-06 08:27:55 +08:00
; CHECK-LABEL: unused_first:
[WebAssembly] Emit .param, .result, and .local through MC. This eliminates one of the main remaining uses of EmitRawText. llvm-svn: 253878
2015-11-24 00:50:18 +08:00
; CHECK-NEXT: .param i32, i32{{$}}
[WebAssembly] Switch to a more traditional assembly syntax This new syntax is built around putting each instruction on its own line in a "mnemonic op, op, op" like syntax. It also uses conventional data section directives like ".byte" and so on rather than requiring everything to be in hierarchical S-expression format. This is a more natural syntax for a ".s" file format from the perspective of LLVM MC and related tools, while remaining easy to translate into other forms as needed. llvm-svn: 249364
2015-10-06 08:27:55 +08:00
; CHECK-NEXT: .result i32{{$}}
[WebAssembly] Enable register coloring and register stackifying. This also takes the push/pop syntax another step forward, introducing stack slot numbers to make it easier to see how expressions are connected. For example, the value pushed in $push7 is popped in $pop7. And, this begins an experiment with making get_local and set_local implicit when an operation directly uses or defines a register. This greatly reduces clutter. If this experiment succeeds, it may make sense to do this for const instructions as well. And, this introduces more special code for ARGUMENTS; hopefully this code will soon be obviated by proper support for live-in virtual registers. llvm-svn: 253465
2015-11-19 00:12:01 +08:00
; CHECK-NEXT: return $1{{$}}
WebAssembly: handle unused function arguments. Subscribers: llvm-commits, sunfish, jfb Differential Revision: http://reviews.llvm.org/D11684 llvm-svn: 243770
2015-08-01 02:13:27 +08:00
define i32 @unused_first(i32 %x, i32 %y) {
ret i32 %y
}
[WebAssembly] Switch to a more traditional assembly syntax This new syntax is built around putting each instruction on its own line in a "mnemonic op, op, op" like syntax. It also uses conventional data section directives like ".byte" and so on rather than requiring everything to be in hierarchical S-expression format. This is a more natural syntax for a ".s" file format from the perspective of LLVM MC and related tools, while remaining easy to translate into other forms as needed. llvm-svn: 249364
2015-10-06 08:27:55 +08:00
; CHECK-LABEL: unused_second:
[WebAssembly] Emit .param, .result, and .local through MC. This eliminates one of the main remaining uses of EmitRawText. llvm-svn: 253878
2015-11-24 00:50:18 +08:00
; CHECK-NEXT: .param i32, i32{{$}}
[WebAssembly] Switch to a more traditional assembly syntax This new syntax is built around putting each instruction on its own line in a "mnemonic op, op, op" like syntax. It also uses conventional data section directives like ".byte" and so on rather than requiring everything to be in hierarchical S-expression format. This is a more natural syntax for a ".s" file format from the perspective of LLVM MC and related tools, while remaining easy to translate into other forms as needed. llvm-svn: 249364
2015-10-06 08:27:55 +08:00
; CHECK-NEXT: .result i32{{$}}
[WebAssembly] Enable register coloring and register stackifying. This also takes the push/pop syntax another step forward, introducing stack slot numbers to make it easier to see how expressions are connected. For example, the value pushed in $push7 is popped in $pop7. And, this begins an experiment with making get_local and set_local implicit when an operation directly uses or defines a register. This greatly reduces clutter. If this experiment succeeds, it may make sense to do this for const instructions as well. And, this introduces more special code for ARGUMENTS; hopefully this code will soon be obviated by proper support for live-in virtual registers. llvm-svn: 253465
2015-11-19 00:12:01 +08:00
; CHECK-NEXT: return $0{{$}}
WebAssembly: handle unused function arguments. Subscribers: llvm-commits, sunfish, jfb Differential Revision: http://reviews.llvm.org/D11684 llvm-svn: 243770
2015-08-01 02:13:27 +08:00
define i32 @unused_second(i32 %x, i32 %y) {
ret i32 %x
}
[WebAssembly] Introduce a new pseudo-operand for unused expression results. llvm-svn: 252975
2015-11-13 08:21:05 +08:00
; CHECK-LABEL: call_something:
[WebAssembly] Add type prefixes to call instructions Add return type information to call and call_indirect instructions. This allows them to be disambiguated without knowledge of the callee. Differential Revision: http://reviews.llvm.org/D15484 llvm-svn: 255565
2015-12-15 06:56:51 +08:00
; CHECK-NEXT: {{^}} i32.call $discard=, return_something{{$}}
[WebAssembly] Introduce a new pseudo-operand for unused expression results. llvm-svn: 252975
2015-11-13 08:21:05 +08:00
; CHECK-NEXT: return{{$}}
declare i32 @return_something()
define void @call_something() {
[WebAssembly] Make indentation consistent with the other testcases. NFC. llvm-svn: 253149
2015-11-15 07:17:07 +08:00
call i32 @return_something()
ret void
[WebAssembly] Introduce a new pseudo-operand for unused expression results. llvm-svn: 252975
2015-11-13 08:21:05 +08:00
}