From 537689276227f95fab4b628d71f0db26e8c4892d Mon Sep 17 00:00:00 2001 From: Pirama Arumuga Nainar Date: Fri, 19 Jan 2024 22:58:46 +0000 Subject: [PATCH] [riscv64] disable vectorizer during LTO With LTO, vectorization needs to be disabled separately in the linker flags as well. Change-Id: I71d813974a9b7a40954d3dab5b1704baed610fd0 --- cc/config/riscv64_device.go | 2 ++ 1 file changed, 2 insertions(+) diff --git a/cc/config/riscv64_device.go b/cc/config/riscv64_device.go index bcd0060a8..f76e8c93f 100644 --- a/cc/config/riscv64_device.go +++ b/cc/config/riscv64_device.go @@ -43,6 +43,8 @@ var ( // Equivalent to "-munaligned-access", but our clang doesn't have that yet. "-Xclang -target-feature -Xclang +unaligned-scalar-mem", "-Xclang -target-feature -Xclang +unaligned-vector-mem", + // Until https://gitlab.com/qemu-project/qemu/-/issues/1976 is fixed... + "-Wl,-mllvm,-vectorize-loops=false", // We should change the default for this in clang, but for now... // (https://github.com/google/android-riscv64/issues/124) "-Wl,-mllvm -Wl,-jump-is-expensive=false",