From 610074df3f34de77e63e1a850d746ccb84a609cf Mon Sep 17 00:00:00 2001 From: LLVM Packaging Team Date: Sat, 31 Oct 2020 13:09:15 +0000 Subject: [PATCH] mips-force-nomadd4 The MIPS port aims to support the Loongson 3 family of CPUs in addition of the other MIPS CPUs. On the Loongson 3 family the MADD4 instructions are fused, while they are not fused on the other MIPS CPUs. In order to support both, we have to disabled those instructions. For that, the patch below basically corresponds to the --with-madd4=no used on the GCC side. Gbp-Pq: Name mips-force-nomadd4.diff --- clang/lib/Basic/Targets/Mips.h | 1 + 1 file changed, 1 insertion(+) diff --git a/clang/lib/Basic/Targets/Mips.h b/clang/lib/Basic/Targets/Mips.h index 474cda84a..8b8f9236a 100644 --- a/clang/lib/Basic/Targets/Mips.h +++ b/clang/lib/Basic/Targets/Mips.h @@ -312,6 +312,7 @@ public: FloatABI = HardFloat; DspRev = NoDSP; FPMode = isFP64Default() ? FP64 : FPXX; + DisableMadd4 = true; for (const auto &Feature : Features) { if (Feature == "+single-float") -- 2.30.2