[Valgrind-developers] vex: r2024 - trunk/priv

[<sv...@va...>]

Author: sewardj
Date: 2010-08-31 10:32:40 +0100 (Tue, 31 Aug 2010)
New Revision: 2024

Log:
Reduce to 5 the number of available Q (128-bit) registers available
to the allocator, in an attempt to make register allocation a bit 
faster on ARM.


Modified:
   trunk/priv/host_arm_defs.c


Modified: trunk/priv/host_arm_defs.c
===================================================================
--- trunk/priv/host_arm_defs.c	2010-08-31 09:31:06 UTC (rev 2023)
+++ trunk/priv/host_arm_defs.c	2010-08-31 09:32:40 UTC (rev 2024)
@@ -119,7 +119,7 @@
 void getAllocableRegs_ARM ( Int* nregs, HReg** arr )
 {
    Int i = 0;
-   *nregs = 29;
+   *nregs = 26;
    *arr = LibVEX_Alloc(*nregs * sizeof(HReg));
    // callee saves ones are listed first, since we prefer them
    // if they're available
@@ -154,10 +154,11 @@
    (*arr)[i++] = hregARM_Q10();
    (*arr)[i++] = hregARM_Q11();
    (*arr)[i++] = hregARM_Q12();
-   (*arr)[i++] = hregARM_Q13();
-   (*arr)[i++] = hregARM_Q14();
-   (*arr)[i++] = hregARM_Q15();
 
+   //(*arr)[i++] = hregARM_Q13();
+   //(*arr)[i++] = hregARM_Q14();
+   //(*arr)[i++] = hregARM_Q15();
+
    // unavail: r8 as GSP
    // r12 'cos we're not sure what it's for
    // r13 as SP