[llvm-branch-commits] [llvm] PR for llvm/llvm-project#80024 (PR #80025)
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Thu Feb 1 13:43:35 PST 2024
https://github.com/llvmbot updated https://github.com/llvm/llvm-project/pull/80025
>From 284570a985e95e3d8118cde2b0198bbbdc9b19ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Gr=C3=A4nitz?= <stefan.graenitz at gmail.com>
Date: Tue, 30 Jan 2024 17:00:28 +0100
Subject: [PATCH] [llvm-jitlink] Fix detectStubKind() for big endian systems
(#79970)
This function is used in `jitlink-check` lines in LIT tests. In #78371 I
missed to swap initial instruction bytes for systems that store the
constants as big-endian.
(cherry picked from commit 8a5bdd899f3cb57024d92b96c16e805ca9924ac7)
---
llvm/tools/llvm-jitlink/llvm-jitlink.cpp | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/llvm/tools/llvm-jitlink/llvm-jitlink.cpp b/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
index b2a133860197d..769ed17ac4cbd 100644
--- a/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
+++ b/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
@@ -1294,10 +1294,11 @@ class MemoryMatcher {
};
static StringRef detectStubKind(const Session::MemoryRegionInfo &Stub) {
- constexpr uint32_t Armv7MovWTle = 0xe300c000;
- constexpr uint32_t Armv7BxR12le = 0xe12fff1c;
- constexpr uint32_t Thumbv7MovWTle = 0x0c00f240;
- constexpr uint16_t Thumbv7BxR12le = 0x4760;
+ using namespace support::endian;
+ auto Armv7MovWTle = byte_swap<uint32_t, endianness::little>(0xe300c000);
+ auto Armv7BxR12le = byte_swap<uint32_t, endianness::little>(0xe12fff1c);
+ auto Thumbv7MovWTle = byte_swap<uint32_t, endianness::little>(0x0c00f240);
+ auto Thumbv7BxR12le = byte_swap<uint16_t, endianness::little>(0x4760);
MemoryMatcher M(Stub.getContent());
if (M.matchMask(Thumbv7MovWTle)) {
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