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Implicitly assume compilers to know naked and noreturn attributes

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def
2015-05-07 22:31:45 +02:00
parent 78c26cbf18
commit 4a2a0894ae
2 changed files with 6 additions and 8 deletions
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8
compiler/cgen.nim
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@@ -677,10 +677,10 @@ proc genProcAux(m: BModule, prc: PSym) =
genStmts(p, prc.getBody) # modifies p.locals, p.init, etc.
var generatedProc: Rope
if sfNoReturn in prc.flags:
if {hasNoreturn, hasDeclspec} <= extccomp.CC[extccomp.cCompiler].props:
if hasDeclspec in extccomp.CC[extccomp.cCompiler].props:
header = "__declspec(noreturn) " & header
if sfPure in prc.flags:
if {hasNaked, hasDeclspec} <= extccomp.CC[extccomp.cCompiler].props:
if hasDeclspec in extccomp.CC[extccomp.cCompiler].props:
header = "__declspec(naked) " & header
generatedProc = rfmt(nil, "$N$1 {$n$2$3$4}$N$N",
header, p.s(cpsLocals), p.s(cpsInit), p.s(cpsStmts))
@@ -723,9 +723,9 @@ proc genProcPrototype(m: BModule, sym: PSym) =
var header = genProcHeader(m, sym)
if sym.typ.callConv != ccInline and crossesCppBoundary(m, sym):
header = "extern \"C\" " & header
if sfPure in sym.flags and {hasNaked, hasAttribute} <= CC[cCompiler].props:
if sfPure in sym.flags and hasAttribute in CC[cCompiler].props:
header.add(" __attribute__((naked))")
if sfNoReturn in sym.flags and {hasNoreturn, hasAttribute} <= CC[cCompiler].props:
if sfNoReturn in sym.flags and hasAttribute in CC[cCompiler].props:
header.add(" __attribute__((noreturn))")
add(m.s[cfsProcHeaders], rfmt(nil, "$1;$n", header))

6
compiler/extccomp.nim
View File

@@ -28,8 +28,6 @@ type
hasGnuAsm, # CC's asm uses the absurd GNU assembler syntax
hasDeclspec, # CC has __declspec(X)
hasAttribute, # CC has __attribute__((X))
hasNaked, # CC has naked declspec/attribute
hasNoreturn # CC has noreturn declspec/attribute
TInfoCCProps* = set[TInfoCCProp]
TInfoCC* = tuple[
name: string, # the short name of the compiler
@@ -87,7 +85,7 @@ compiler gcc:
structStmtFmt: "$1 $3 $2 ", # struct|union [packed] $name
packedPragma: "__attribute__((__packed__))",
props: {hasSwitchRange, hasComputedGoto, hasCpp, hasGcGuard, hasGnuAsm,
hasAttribute, hasNaked, hasNoreturn})
hasAttribute})
# LLVM Frontend for GCC/G++
compiler llvmGcc:
@@ -129,7 +127,7 @@ compiler vcc:
asmStmtFrmt: "__asm{$n$1$n}$n",
structStmtFmt: "$3$n$1 $2",
packedPragma: "#pragma pack(1)",
props: {hasCpp, hasAssume, hasDeclspec, hasNaked, hasNoreturn})
props: {hasCpp, hasAssume, hasDeclspec})
# Intel C/C++ Compiler
compiler icl: