DUALNUM: Improve/fix edge cases of unary minus.

Thanks to Sergey Kaplun. #1422 #1418
2026-01-09 18:46:32 +01:00
parent 3015b6187e
commit 707c12bf00
8 changed files with 33 additions and 7 deletions
--- a/src/vm_arm.dasc
+++ b/src/vm_arm.dasc
@@ -3125,13 +3125,16 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
    |  bhi ->vmeta_unm
    |  eorne CARG2, CARG2, #0x80000000
    |  bne >5
-    |  rsbseq CARG1, CARG1, #0
+    |  rsbs CARG1, CARG1, #0
+    |  ldrdeq CARG12, >8
    |  ldrdvs CARG12, >9
    |5:
    |  strd CARG12, [BASE, RA]
    |   ins_next3
    |
    |.align 8
+    |8:
+    |  .long 0x00000000, 0x80000000	// -0.
    |9:
    |  .long 0x00000000, 0x41e00000	// 2^31.
    break;