Summary:
This directive is used to reset the assembler options to their initial values.
Assembly programmers use it in conjunction with the ".set mipsX" directives.
This patch depends on the .set push/pop directive (http://reviews.llvm.org/D4821).
Contains work done by Matheus Almeida.
Reviewers: dsanders
Reviewed By: dsanders
Differential Revision: http://reviews.llvm.org/D4957
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217438
91177308-0d34-0410-b5e6-
96231b3b80d8
const MCExpr *evaluateRelocExpr(const MCExpr *Expr, StringRef RelocStr);
bool isEvaluated(const MCExpr *Expr);
+ bool parseSetMips0Directive();
bool parseSetArchDirective();
bool parseSetFeature(uint64_t Feature);
bool parseDirectiveCPLoad(SMLoc Loc);
return false;
}
+bool MipsAsmParser::parseSetMips0Directive() {
+ Parser.Lex();
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return reportParseError("unexpected token, expected end of statement");
+
+ // Reset assembler options to their initial values.
+ setAvailableFeatures(AssemblerOptions.front()->getFeatures());
+ AssemblerOptions.back()->setFeatures(AssemblerOptions.front()->getFeatures());
+
+ getTargetStreamer().emitDirectiveSetMips0();
+ return false;
+}
+
bool MipsAsmParser::parseSetArchDirective() {
Parser.Lex();
if (getLexer().isNot(AsmToken::Equal))
return false;
} else if (Tok.getString() == "micromips") {
return parseSetFeature(Mips::FeatureMicroMips);
+ } else if (Tok.getString() == "mips0") {
+ return parseSetMips0Directive();
} else if (Tok.getString() == "mips1") {
return parseSetFeature(Mips::FeatureMips1);
} else if (Tok.getString() == "mips2") {
void MipsTargetStreamer::emitDirectiveSetArch(StringRef Arch) {
forbidModuleDirective();
}
+void MipsTargetStreamer::emitDirectiveSetMips0() {}
void MipsTargetStreamer::emitDirectiveSetMips1() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMips2() { forbidModuleDirective(); }
void MipsTargetStreamer::emitDirectiveSetMips3() { forbidModuleDirective(); }
MipsTargetStreamer::emitDirectiveSetArch(Arch);
}
+void MipsTargetAsmStreamer::emitDirectiveSetMips0() { OS << "\t.set\tmips0\n"; }
+
void MipsTargetAsmStreamer::emitDirectiveSetMips1() {
OS << "\t.set\tmips1\n";
MipsTargetStreamer::emitDirectiveSetMips1();
virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff);
virtual void emitDirectiveSetArch(StringRef Arch);
+ virtual void emitDirectiveSetMips0();
virtual void emitDirectiveSetMips1();
virtual void emitDirectiveSetMips2();
virtual void emitDirectiveSetMips3();
void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) override;
void emitDirectiveSetArch(StringRef Arch) override;
+ void emitDirectiveSetMips0() override;
void emitDirectiveSetMips1() override;
void emitDirectiveSetMips2() override;
void emitDirectiveSetMips3() override;
--- /dev/null
+# RUN: llvm-mc %s -triple=mipsel-unknown-linux -mcpu=mips32r2 | \
+# RUN: FileCheck %s
+
+ .text
+ rotr $7, $7, 22
+
+ .set mips32r6
+ mod $2, $4, $6
+ .set mips0
+ rotr $2, $2, 15
+
+ .set mips3
+ dadd $4, $4, $4
+ .set mips0
+ rotr $3, $3, 19
+
+# CHECK: rotr $7, $7, 22
+
+# CHECK: .set mips32r6
+# CHECK: mod $2, $4, $6
+# CHECK: .set mips0
+# CHECK: rotr $2, $2, 15
+
+# CHECK: .set mips3
+# CHECK: dadd $4, $4, $4
+# CHECK: .set mips0
+# CHECK: rotr $3, $3, 19