Add support for the mips 'x' inline asm modifier.
Patch by Jack Carter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157057 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsAsmPrinter.cpp b/lib/Target/Mips/MipsAsmPrinter.cpp
index e62da35..3fa773b 100644
--- a/lib/Target/Mips/MipsAsmPrinter.cpp
+++ b/lib/Target/Mips/MipsAsmPrinter.cpp
@@ -383,6 +383,11 @@
return true;
O << "0x" << StringRef(utohexstr(MO.getImm())).lower();
return false;
+ case 'x': // hex const int (low 16 bits)
+ if ((MO.getType()) != MachineOperand::MO_Immediate)
+ return true;
+ O << "0x" << StringRef(utohexstr(MO.getImm() & 0xffff)).lower();
+ return false;
}
}
diff --git a/test/CodeGen/Mips/inlineasm-operand-code.ll b/test/CodeGen/Mips/inlineasm-operand-code.ll
index 4568a84..63190fa 100644
--- a/test/CodeGen/Mips/inlineasm-operand-code.ll
+++ b/test/CodeGen/Mips/inlineasm-operand-code.ll
@@ -11,5 +11,11 @@
;CHECK: #NO_APP
tail call i32 asm sideeffect "addi $0,$1,${2:X}", "=r,r,I"(i32 7, i32 -3) nounwind
+; x with -3
+;CHECK: #APP
+;CHECK: addi ${{[0-9]+}},${{[0-9]+}},0xfffd
+;CHECK: #NO_APP
+ tail call i32 asm sideeffect "addi $0,$1,${2:x}", "=r,r,I"(i32 7, i32 -3) nounwind
+
ret i32 0
}