commit bce5507c024085ab261b5fa4a803cb9c38ea8559
author Prashanth Swaminathan <prashanthsw@google.com> Wed Mar 29 11:05:16 2023 -0700
committer Prashanth Swaminathan <prashanthsw@google.com> Thu Mar 30 20:06:50 2023 +0000
tree 0f0dfee803c70a807f8c34c62e4729afc333a14e
parent 97f5966f49793bdb62afaa14b2df08dc126a5274

Enable sext.w removal for riscv targets

Bug: 275574215
Test: Verified boot complete on aosp_cf_riscv64_phone target.
Change-Id: I771dbc492075eec18919b66dc74ae524e3f4b3cd

cc/config/riscv64_device.go

diff --git a/cc/config/riscv64_device.go b/cc/config/riscv64_device.go
index 35c57f9..76c8e5d 100644
--- a/cc/config/riscv64_device.go
+++ b/cc/config/riscv64_device.go
@@ -28,6 +28,9 @@
 		"-fno-emulated-tls",
 		// For -fsanitize=shadow-call-stack.
 		"-ffixed-x18",
+		// A temporary fix for SExtWRemoval miscompilation bug.
+		"-mllvm",
+		"-riscv-disable-sextw-removal=true",
 	}
 
 	riscv64ArchVariantCflags = map[string][]string{}