Merge pull request #2360 from jgouly/reg_map

aarch64: Fix aarch64_map_regs for FpuRRI
2020-11-04 10:37:50 -08:00
parent fa9c2a5172 0223cb2f8c
commit 75e02276be
1 changed files with 5 additions and 1 deletions
--- a/cranelift/codegen/src/isa/aarch64/inst/mod.rs
+++ b/cranelift/codegen/src/isa/aarch64/inst/mod.rs
@@ -2315,11 +2315,15 @@ fn aarch64_map_regs<RUM: RegUsageMapper>(inst: &mut Inst, mapper: &RUM) {
            map_use(mapper, rm);
        }
        &mut Inst::FpuRRI {
+            fpu_op,
            ref mut rd,
            ref mut rn,
            ..
        } => {
-            map_def(mapper, rd);
+            match fpu_op {
+                FPUOpRI::UShr32(..) | FPUOpRI::UShr64(..) => map_def(mapper, rd),
+                FPUOpRI::Sli32(..) | FPUOpRI::Sli64(..) => map_mod(mapper, rd),
+            }
            map_use(mapper, rn);
        }
        &mut Inst::FpuRRRR {