diff options
| -rw-r--r-- | lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp | 11 | ||||
| -rw-r--r-- | test/CodeGen/X86/inline-asm-modifier-n.ll | 8 |
2 files changed, 19 insertions, 0 deletions
diff --git a/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp b/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp index 27f95d8759..369daf0de0 100644 --- a/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp +++ b/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp @@ -840,6 +840,17 @@ bool X86ATTAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo, case 'P': // Don't print @PLT, but do print as memory. printOperand(MI, OpNo, "mem", /*NotRIPRel=*/true); return false; + + case 'n': { // Negate the immediate or print a '-' before the operand. + // Note: this is a temporary solution. It should be handled target + // independently as part of the 'MC' work. + const MachineOperand &MO = MI->getOperand(OpNo); + if (MO.isImm()) { + O << -MO.getImm(); + return false; + } + O << '-'; + } } } diff --git a/test/CodeGen/X86/inline-asm-modifier-n.ll b/test/CodeGen/X86/inline-asm-modifier-n.ll new file mode 100644 index 0000000000..97eac38867 --- /dev/null +++ b/test/CodeGen/X86/inline-asm-modifier-n.ll @@ -0,0 +1,8 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep { 37} +; rdar://7008959 + +define void @bork() nounwind { +entry: + tail call void asm sideeffect "BORK ${0:n}", "i,~{dirflag},~{fpsr},~{flags}"(i32 -37) nounwind + ret void +} |