ARMv4 JIT forgets to set the lr register when making a indirect function call. Fixes PR7608
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109125 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMCodeEmitter.cpp b/lib/Target/ARM/ARMCodeEmitter.cpp
index d5896a3..93f617d 100644
--- a/lib/Target/ARM/ARMCodeEmitter.cpp
+++ b/lib/Target/ARM/ARMCodeEmitter.cpp
@@ -654,6 +654,19 @@
switch (Opcode) {
default:
llvm_unreachable("ARMCodeEmitter::emitPseudoInstruction");
+ case ARM::BX:
+ case ARM::BMOVPCRX:
+ case ARM::BXr9:
+ case ARM::BMOVPCRXr9: {
+ // First emit mov lr, pc
+ unsigned Binary = 0x01a0e00f;
+ Binary |= II->getPredicate(&MI) << ARMII::CondShift;
+ emitWordLE(Binary);
+
+ // and then emit the branch.
+ emitMiscBranchInstruction(MI);
+ break;
+ }
case TargetOpcode::INLINEASM: {
// We allow inline assembler nodes with empty bodies - they can
// implicitly define registers, which is ok for JIT.