Fix RISC-V C function ABI when passing/returning structs containing floats

2025-04-03 23:53:06 +01:00
parent 68ac5abb06
commit 5723c9997c
13 changed files with 537 additions and 134 deletions
--- a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs
+++ b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs
@@ -626,7 +626,7 @@ impl<'gcc, 'tcx> ArgAbiExt<'gcc, 'tcx> for ArgAbi<'tcx, Ty<'tcx>> {
                bx.lifetime_start(llscratch, scratch_size);

                // ... where we first store the value...
-                bx.store(val, llscratch, scratch_align);
+                rustc_codegen_ssa::mir::store_cast(bx, cast, val, llscratch, scratch_align);

                // ... and then memcpy it to the intended destination.
                bx.memcpy(