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path: root/lib/Target/Mips/MipsAsmPrinter.cpp
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Diffstat (limited to 'lib/Target/Mips/MipsAsmPrinter.cpp')
-rw-r--r--lib/Target/Mips/MipsAsmPrinter.cpp44
1 files changed, 24 insertions, 20 deletions
diff --git a/lib/Target/Mips/MipsAsmPrinter.cpp b/lib/Target/Mips/MipsAsmPrinter.cpp
index 00ff7545c1..3b1509d46b 100644
--- a/lib/Target/Mips/MipsAsmPrinter.cpp
+++ b/lib/Target/Mips/MipsAsmPrinter.cpp
@@ -58,33 +58,37 @@ void MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) {
return;
}
- // Direct object specific instruction lowering
- if (!OutStreamer.hasRawTextSupport())
- switch (MI->getOpcode()) {
- case Mips::DSLL:
- case Mips::DSRL:
- case Mips::DSRA:
- assert(MI->getNumOperands() == 3 &&
- "Invalid no. of machine operands for shift!");
- assert(MI->getOperand(2).isImm());
- int64_t Shift = MI->getOperand(2).getImm();
- if (Shift > 31) {
- MCInst TmpInst0;
- MCInstLowering.LowerLargeShift(MI, TmpInst0, Shift - 32);
- OutStreamer.EmitInstruction(TmpInst0);
- return;
- }
- break;
- }
-
MachineBasicBlock::const_instr_iterator I = MI;
MachineBasicBlock::const_instr_iterator E = MI->getParent()->instr_end();
do {
MCInst TmpInst0;
+
+ // Direct object specific instruction lowering
+ if (!OutStreamer.hasRawTextSupport())
+ switch (I->getOpcode()) {
+ // If shift amount is >= 32 it the inst needs to be lowered further
+ case Mips::DSLL:
+ case Mips::DSRL:
+ case Mips::DSRA:
+ {
+ assert(I->getNumOperands() == 3 &&
+ "Invalid no. of machine operands for shift!");
+ assert(I->getOperand(2).isImm());
+ int64_t Shift = I->getOperand(2).getImm();
+ if (Shift > 31) {
+ MCInst TmpInst0;
+ MCInstLowering.LowerLargeShift(I, TmpInst0, Shift - 32);
+ OutStreamer.EmitInstruction(TmpInst0);
+ return;
+ }
+ }
+ }
+
MCInstLowering.Lower(I++, TmpInst0);
OutStreamer.EmitInstruction(TmpInst0);
- } while ((I != E) && I->isInsideBundle());
+
+ } while ((I != E) && I->isInsideBundle()); // Delay slot check
}
//===----------------------------------------------------------------------===//