* [PATCH, rs6000] Remove redundant logic from rs6000_secondary_reload_direct_move
@ 2015-11-10 21:04 Bill Schmidt
0 siblings, 0 replies; only message in thread
From: Bill Schmidt @ 2015-11-10 21:04 UTC (permalink / raw)
To: gcc-patches
Hi,
While investigating another issue, I observed some repeated logic in
rs6000_secondary_reload_direct_move (). This patch takes it out. No
functional change intended, and quite straightforward, so I'll plan to
commit shortly if no concerns are raised.
Bootstrapped and tested on powerpc64le-linux-gnu with no regressions.
Thanks,
Bill
2015-11-10 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (rs6000_secondary_reload_direct_move):
Remove redundant code.
Index: gcc/config/rs6000/rs6000.c
===================================================================
--- gcc/config/rs6000/rs6000.c (revision 230052)
+++ gcc/config/rs6000/rs6000.c (working copy)
@@ -17926,29 +17926,8 @@ rs6000_secondary_reload_direct_move (enum rs6000_r
}
}
- if (TARGET_POWERPC64 && size == 16)
+ else if (size == 8)
{
- /* Handle moving 128-bit values from GPRs to VSX point registers on
- power8 when running in 64-bit mode using XXPERMDI to glue the two
- 64-bit values back together. */
- if (to_type == VSX_REG_TYPE && from_type == GPR_REG_TYPE)
- {
- cost = 3; /* 2 mtvsrd's, 1 xxpermdi. */
- icode = reg_addr[mode].reload_vsx_gpr;
- }
-
- /* Handle moving 128-bit values from VSX point registers to GPRs on
- power8 when running in 64-bit mode using XXPERMDI to get access to the
- bottom 64-bit value. */
- else if (to_type == GPR_REG_TYPE && from_type == VSX_REG_TYPE)
- {
- cost = 3; /* 2 mfvsrd's, 1 xxpermdi. */
- icode = reg_addr[mode].reload_gpr_vsx;
- }
- }
-
- else if (!TARGET_POWERPC64 && size == 8)
- {
/* Handle moving 64-bit values from GPRs to floating point registers on
power8 when running in 32-bit mode using FMRGOW to glue the two 32-bit
values back together. Altivec register classes must be handled
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2015-11-10 21:04 [PATCH, rs6000] Remove redundant logic from rs6000_secondary_reload_direct_move Bill Schmidt
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