link to llvm changes that prompted the special cases

tshepang · tshepang · commit 225e01ee7925 · 2023-02-18T09:59:41.000+02:00
diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs
@@ -145,8 +145,10 @@ pub unsafe fn create_module<'ll>(
     let llvm_version = llvm_util::get_version();
     if llvm_version < (16, 0, 0) {
         if sess.target.arch == "s390x" {
+            // See https://reviews.llvm.org/D131158
             target_data_layout = target_data_layout.replace("-v128:64", "");
         } else if sess.target.arch == "riscv64" {
+            // See https://reviews.llvm.org/D116735
             target_data_layout = target_data_layout.replace("-n32:64-", "-n64-");
         }
     }

Original file line number	Diff line number	Diff line change
`@@ -145,8 +145,10 @@ pub unsafe fn create_module<'ll>(`
`145`	`145`	`let llvm_version = llvm_util::get_version();`
`146`	`146`	`if llvm_version < (16, 0, 0) {`
`147`	`147`	`if sess.target.arch == "s390x" {`
	`148`	`+ // See https://reviews.llvm.org/D131158`
`148`	`149`	`target_data_layout = target_data_layout.replace("-v128:64", "");`
`149`	`150`	`} else if sess.target.arch == "riscv64" {`
	`151`	`+ // See https://reviews.llvm.org/D116735`
`150`	`152`	`target_data_layout = target_data_layout.replace("-n32:64-", "-n64-");`
`151`	`153`	`}`
`152`	`154`	`}`