From 2deac5ea40054fe3de6ea76a5a40c93d09e7216d Mon Sep 17 00:00:00 2001 From: LLVM Packaging Team Date: Thu, 11 Jan 2024 14:15:09 +0100 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: Topic mips Gbp-Pq: Name mips-force-nomadd4.patch --- clang/lib/Basic/Targets/Mips.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/clang/lib/Basic/Targets/Mips.h b/clang/lib/Basic/Targets/Mips.h index 7ecbd8633c..b817597284 100644 --- a/clang/lib/Basic/Targets/Mips.h +++ b/clang/lib/Basic/Targets/Mips.h @@ -331,6 +331,8 @@ public: HasMSA = true; else if (Feature == "+nomadd4") DisableMadd4 = true; + else if (Feature == "-nomadd4") + DisableMadd4 = false; else if (Feature == "+fp64") FPMode = FP64; else if (Feature == "-fp64") -- 2.30.2