[Valgrind-developers] [valgrind] arm64 front end: mark a couple of vector load/store insns as "verbose".

[Julian S. <se...@so...>]

https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=2471e0521da06200bd9d553b4d17750af2852bb0

commit 2471e0521da06200bd9d553b4d17750af2852bb0
Author: Julian Seward <js...@ac...>
Date:   Fri Oct 30 17:34:14 2020 +0100

    arm64 front end: mark a couple of vector load/store insns as "verbose".
    
    Mark
       LD3/ST3 (multiple 3-elem structs to/from 3 regs
       LD4/ST4 (multiple 4-elem structs to/from 4 regs
    as "verbose", since they can generate so much IR that a long sequence
    of them causes later stages of the JIT to run out of space.

Diff:
---
 VEX/priv/guest_arm64_toIR.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/VEX/priv/guest_arm64_toIR.c b/VEX/priv/guest_arm64_toIR.c
index fa4596a905..556b85a6af 100644
--- a/VEX/priv/guest_arm64_toIR.c
+++ b/VEX/priv/guest_arm64_toIR.c
@@ -6040,6 +6040,9 @@ Bool dis_ARM64_load_store(/*MB_OUT*/DisResult* dres, UInt insn,
              (tt+0) % 32, arr, (tt+nRegs-1) % 32, arr, nameIReg64orSP(nn),
              pxStr);
 
+         if (nRegs >= 3) {
+            dres->hint = Dis_HintVerbose;
+         }
          return True;
       }
       /* else fall through */