Hello!
In addition to mask registers, QImode and HImode fixups in
HARD_REGNO_CALLER_SAVE_MODE apply only to general registers.
2017-01-16 Uros Bizjak <[email protected]>
* config/i386/i386.h (HARD_REGNO_CALLER_SAVE_MODE): Apply HImode and
QImode fixups to general and mask registers only.
Bootstrapped and regression tested on x86_64-linux-gnu.
Committed to mainline SVN.
Uros.
Index: config/i386/i386.h
===================================================================
--- config/i386/i386.h (revision 244497)
+++ config/i386/i386.h (working copy)
@@ -1211,9 +1211,10 @@ extern const char *host_detect_local_cpu (int argc
(CC_REGNO_P (REGNO) ? VOIDmode \
: (MODE) == VOIDmode && (NREGS) != 1 ? VOIDmode \
: (MODE) == VOIDmode ? choose_hard_reg_mode ((REGNO), (NREGS), false) \
- : (MODE) == HImode && !(TARGET_PARTIAL_REG_STALL \
+ : (MODE) == HImode && !((GENERAL_REGNO_P (REGNO) \
+ && TARGET_PARTIAL_REG_STALL) \
|| MASK_REGNO_P (REGNO)) ? SImode \
- : (MODE) == QImode && !(TARGET_64BIT || QI_REGNO_P (REGNO) \
+ : (MODE) == QImode && !(ANY_QI_REGNO_P (REGNO) \
|| MASK_REGNO_P (REGNO)) ? SImode \
: (MODE))
