add printing support for SOImm operands, getting us to:
_main:
stm ,
mov r7, sp
sub sp, sp, #4
mov r0, #0
str r0,
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84535 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp b/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
index fc1e53f..8393e24 100644
--- a/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
+++ b/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
@@ -13,8 +13,9 @@
#define DEBUG_TYPE "asm-printer"
#include "ARMInstPrinter.h"
+#include "ARMAddressingModes.h"
#include "llvm/MC/MCInst.h"
-//#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCAsmInfo.h"
//#include "llvm/MC/MCExpr.h"
//#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
@@ -47,3 +48,34 @@
//Op.getExpr()->print(O, &MAI);
}
}
+
+static void printSOImm(raw_ostream &O, int64_t V, bool VerboseAsm,
+ const MCAsmInfo *MAI) {
+ // Break it up into two parts that make up a shifter immediate.
+ V = ARM_AM::getSOImmVal(V);
+ assert(V != -1 && "Not a valid so_imm value!");
+
+ unsigned Imm = ARM_AM::getSOImmValImm(V);
+ unsigned Rot = ARM_AM::getSOImmValRot(V);
+
+ // Print low-level immediate formation info, per
+ // A5.1.3: "Data-processing operands - Immediate".
+ if (Rot) {
+ O << "#" << Imm << ", " << Rot;
+ // Pretty printed version.
+ if (VerboseAsm)
+ O << ' ' << MAI->getCommentString()
+ << ' ' << (int)ARM_AM::rotr32(Imm, Rot);
+ } else {
+ O << "#" << Imm;
+ }
+}
+
+
+/// printSOImmOperand - SOImm is 4-bit rotate amount in bits 8-11 with 8-bit
+/// immediate in bits 0-7.
+void ARMInstPrinter::printSOImmOperand(const MCInst *MI, unsigned OpNum) {
+ const MCOperand &MO = MI->getOperand(OpNum);
+ assert(MO.isImm() && "Not a valid so_imm value!");
+ printSOImm(O, MO.getImm(), VerboseAsm, &MAI);
+}