From 576d3aaad984dbcf30ea8e8d62fcef691910b072 Mon Sep 17 00:00:00 2001 From: LLVM Packaging Team Date: Mon, 16 Oct 2023 13:14:10 +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: 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 9e84dbc386..c518462515 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