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[WebAssembly] Add the signature for the new llround builtin function

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r360889 added new llround builtin functions. This patch adds their
signatures for the WebAssembly backend.

It also adds wasm32 support to utils/update_llc_test_checks.py, since
that's the script other targets are using for their testcases for this
feature.

Differential Revision: https://reviews.llvm.org/D62207

llvm-svn: 361327
This commit is contained in:
Dan Gohman 2019-05-21 23:06:34 +00:00
parent f0794c8e1e
commit 17703faffc
3 changed files with 70 additions and 0 deletions
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22
lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
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@ -86,6 +86,9 @@ enum RuntimeLibcallSignature {
func_iPTR_i64_i64_i64_i64_i64_i64,
i32_func_i64_i64,
i32_func_i64_i64_i64_i64,
iPTR_func_f32,
iPTR_func_f64,
iPTR_func_i64_i64,
unsupported
};
@ -216,6 +219,12 @@ struct RuntimeLibcallSignatureTable {
Table[RTLIB::ROUND_F32] = f32_func_f32;
Table[RTLIB::ROUND_F64] = f64_func_f64;
Table[RTLIB::ROUND_F128] = func_iPTR_i64_i64;
Table[RTLIB::LROUND_F32] = iPTR_func_f32;
Table[RTLIB::LROUND_F64] = iPTR_func_f64;
Table[RTLIB::LROUND_F128] = iPTR_func_i64_i64;
Table[RTLIB::LLROUND_F32] = i64_func_f32;
Table[RTLIB::LLROUND_F64] = i64_func_f64;
Table[RTLIB::LLROUND_F128] = i64_func_i64_i64;
Table[RTLIB::FLOOR_F32] = f32_func_f32;
Table[RTLIB::FLOOR_F64] = f64_func_f64;
Table[RTLIB::FLOOR_F128] = func_iPTR_i64_i64;
@ -843,6 +852,19 @@ void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
Params.push_back(wasm::ValType::I64);
Params.push_back(wasm::ValType::I64);
break;
case iPTR_func_f32:
Rets.push_back(PtrTy);
Params.push_back(wasm::ValType::F32);
break;
case iPTR_func_f64:
Rets.push_back(PtrTy);
Params.push_back(wasm::ValType::F64);
break;
case iPTR_func_i64_i64:
Rets.push_back(PtrTy);
Params.push_back(wasm::ValType::I64);
Params.push_back(wasm::ValType::I64);
break;
case unsupported:
llvm_unreachable("unsupported runtime library signature");
}

31
test/CodeGen/WebAssembly/llround-conv-i32.ll Normal file
View File

@ -0,0 +1,31 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=wasm32 | FileCheck %s
define i64 @testmsxs_builtin(float %x) {
; CHECK-LABEL: testmsxs_builtin:
; CHECK: .functype testmsxs_builtin (f32) -> (i64)
; CHECK-NEXT: # %bb.0: # %entry
; CHECK-NEXT: local.get 0
; CHECK-NEXT: i64.call llroundf
; CHECK-NEXT: # fallthrough-return-value
; CHECK-NEXT: end_function
entry:
%0 = tail call i64 @llvm.llround.f32(float %x)
ret i64 %0
}
define i64 @testmsxd_builtin(double %x) {
; CHECK-LABEL: testmsxd_builtin:
; CHECK: .functype testmsxd_builtin (f64) -> (i64)
; CHECK-NEXT: # %bb.0: # %entry
; CHECK-NEXT: local.get 0
; CHECK-NEXT: i64.call llround
; CHECK-NEXT: # fallthrough-return-value
; CHECK-NEXT: end_function
entry:
%0 = tail call i64 @llvm.llround.f64(double %x)
ret i64 %0
}
declare i64 @llvm.llround.f32(float) nounwind readnone
declare i64 @llvm.llround.f64(double) nounwind readnone

17
utils/UpdateTestChecks/asm.py
View File

@ -82,6 +82,12 @@ ASM_FUNCTION_SYSTEMZ_RE = re.compile(
r'.Lfunc_end[0-9]+:\n',
flags=(re.M | re.S))
ASM_FUNCTION_WASM32_RE = re.compile(
r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
r'(?P<body>.*?)\n'
r'.Lfunc_end[0-9]+:\n',
flags=(re.M | re.S))
SCRUB_LOOP_COMMENT_RE = re.compile(
r'# =>This Inner Loop Header:.*|# in Loop:.*', flags=re.M)
@ -200,6 +206,16 @@ def scrub_asm_systemz(asm, args):
asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
return asm
def scrub_asm_wasm32(asm, args):
# Scrub runs of whitespace out of the assembly, but leave the leading
# whitespace in place.
asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
# Expand the tabs used for indentation.
asm = string.expandtabs(asm, 2)
# Strip trailing whitespace.
asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
return asm
def get_triple_from_march(march):
triples = {
'amdgcn': 'amdgcn',
@ -250,6 +266,7 @@ def build_function_body_dictionary_for_triple(args, raw_tool_output, triple, pre
'sparc': (scrub_asm_sparc, ASM_FUNCTION_SPARC_RE),
'sparcv9': (scrub_asm_sparc, ASM_FUNCTION_SPARC_RE),
's390x': (scrub_asm_systemz, ASM_FUNCTION_SYSTEMZ_RE),
'wasm32': (scrub_asm_wasm32, ASM_FUNCTION_WASM32_RE),
}
handlers = None
for prefix, s in target_handlers.items():