From 3612486472e34667f0f20a587aa03a7faffee4b3 Mon Sep 17 00:00:00 2001
From: Jason Hiser <jdhiser@gmail.com>
Date: Wed, 10 Feb 2021 15:22:34 -0500
Subject: [PATCH] Apply patch to support abs modifier to be respected
Not sure why patch cannot be in master and/or a release.
---
llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
index b052414..5179e3b 100644
--- a/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
+++ b/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
@@ -397,11 +397,13 @@ void X86MCCodeEmitter::EmitMemModRMByte(const MCInst &MI, unsigned Op,
unsigned int KsError;
bool RIP_rel = false;
+ /*
// do we need x64 RIP relative encoding?
if (BaseReg == 0 && is64BitMode(STI) && IndexReg.getReg() == 0 && Disp.isImm()) {
if (ABS_SUB(MI.getAddress(), (uint64_t)Disp.getImm()) < 2 * (1UL << 30))
RIP_rel = true;
}
+ */
// Handle %rip relative addressing.
if (RIP_rel || BaseReg == X86::RIP) { // [disp32+RIP] in X86-64 mode
--
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