[LoongArch] Disable mulodi4 and muloti4 libcalls #73199
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
@llvm/pr-subscribers-backend-loongarch Author: hev (heiher) ChangesThis library function only exists in compiler-rt not libgcc. So this would fail to link unless we were linking with compiler-rt. Fixes ClangBuiltLinux/linux#1958 Full diff: https://github.com/llvm/llvm-project/pull/73199.diff 1 Files Affected:
diff --git a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
index f3f72e74ef085a2..ac78789c2c331df 100644
--- a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
+++ b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
@@ -152,8 +152,13 @@ LoongArchTargetLowering::LoongArchTargetLowering(const TargetMachine &TM,
// Set libcalls.
setLibcallName(RTLIB::MUL_I128, nullptr);
+ // The MULO libcall is not part of libgcc, only compiler-rt.
+ setLibcallName(RTLIB::MULO_I64, nullptr);
}
+ // The MULO libcall is not part of libgcc, only compiler-rt.
+ setLibcallName(RTLIB::MULO_I128, nullptr);
+
setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Custom);
static const ISD::CondCode FPCCToExpand[] = {
|
SixWeining
reviewed
Nov 23, 2023
This library function only exists in compiler-rt not libgcc. So this would fail to link unless we were linking with compiler-rt. Fixes ClangBuiltLinux/linux#1958
leecheechen
pushed a commit
to leecheechen/llvm-project
that referenced
this pull request
Jun 9, 2025
This library function only exists in compiler-rt not libgcc. So this would fail to link unless we were linking with compiler-rt. Fixes ClangBuiltLinux/linux#1958 (cherry picked from commit 0d9f557) Change-Id: Ie95d3bccc70b3b9a7aedd590864dd4e8f9cd7d6b
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This library function only exists in compiler-rt not libgcc. So this would fail to link unless we were linking with compiler-rt.
Fixes ClangBuiltLinux/linux#1958