[RISCV] Attach VK_RISCV_CALL to symbols upon creation
This patch replaces the addition of VK_RISCV_CALL in RISCVMCCodeEmitter by
creating the RISCVMCExpr when tail/call are parsed, or in the codegen case
when the callee symbols are created.
This required adding a new CallSymbol operand to allow only adding
VK_RISCV_CALL to tail/call instructions.
This patch will allow further expansion of parsing and codegen to easily
include PLT symbols which must generate the R_RISCV_CALL_PLT relocation.
Differential Revision: https://reviews.llvm.org/D55560
Patch by Lewis Revill.
llvm-svn: 357396
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
index 877476b..03baccf 100644
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -1811,9 +1811,11 @@
// TargetGlobalAddress/TargetExternalSymbol node so that legalize won't
// split it and then direct call can be matched by PseudoCALL.
if (GlobalAddressSDNode *S = dyn_cast<GlobalAddressSDNode>(Callee)) {
- Callee = DAG.getTargetGlobalAddress(S->getGlobal(), DL, PtrVT, 0, 0);
+ Callee = DAG.getTargetGlobalAddress(S->getGlobal(), DL, PtrVT, 0,
+ RISCVII::MO_CALL);
} else if (ExternalSymbolSDNode *S = dyn_cast<ExternalSymbolSDNode>(Callee)) {
- Callee = DAG.getTargetExternalSymbol(S->getSymbol(), PtrVT, 0);
+ Callee =
+ DAG.getTargetExternalSymbol(S->getSymbol(), PtrVT, RISCVII::MO_CALL);
}
// The first call operand is the chain and the second is the target address.