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-rw-r--r--lib/MC/MCExpr.cpp12
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/MC/MCExpr.cpp b/lib/MC/MCExpr.cpp
index 2bb674f..3eae6bd 100644
--- a/lib/MC/MCExpr.cpp
+++ b/lib/MC/MCExpr.cpp
@@ -51,7 +51,17 @@ void MCExpr::print(raw_ostream &OS, const MCAsmInfo *MAI) const {
switch (BE.getOpcode()) {
default: assert(0 && "Invalid opcode!");
- case MCBinaryExpr::Add: OS << '+'; break;
+ case MCBinaryExpr::Add:
+ // Print "X-42" instead of "X+-42".
+ if (const MCConstantExpr *RHSC = dyn_cast<MCConstantExpr>(BE.getRHS())) {
+ if (RHSC->getValue() < 0) {
+ OS << RHSC->getValue();
+ return;
+ }
+ }
+
+ OS << '+';
+ break;
case MCBinaryExpr::And: OS << '&'; break;
case MCBinaryExpr::Div: OS << '/'; break;
case MCBinaryExpr::EQ: OS << "=="; break;