https://github.com/DanilaZhebryakov created
https://github.com/llvm/llvm-project/pull/154773
soft float ABI selection was not taking effect on little-endian powerPC with
embedded vectors (e.g. e500v2) leading to errors.
(embedded vectors use "extended" GPRs to store floating-point values, and this
caused issues with variadic arguments assuming dedicated floating-point
registers with hard-float ABI)
>From 96fde1d7cf81601a4a962f936bcf3b91bafde23b Mon Sep 17 00:00:00 2001
From: Danila Zhebryakov <d.zhebrya...@yandex.ru>
Date: Fri, 8 Aug 2025 14:16:30 +0300
Subject: [PATCH] [PowerPC] fix float ABI selection on ppcle
---
clang/lib/CodeGen/CodeGenModule.cpp | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp
b/clang/lib/CodeGen/CodeGenModule.cpp
index 677d8bc82cb0a..8b85b93b5d568 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -188,7 +188,8 @@ createTargetCodeGenInfo(CodeGenModule &CGM) {
return createPPC32TargetCodeGenInfo(CGM, IsSoftFloat);
}
case llvm::Triple::ppcle: {
- bool IsSoftFloat = CodeGenOpts.FloatABI == "soft";
+ bool IsSoftFloat =
+ CodeGenOpts.FloatABI == "soft" || Target.hasFeature("spe");
return createPPC32TargetCodeGenInfo(CGM, IsSoftFloat);
}
case llvm::Triple::ppc64:
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