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rs6000: Add -mdejagnu-cpu=

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This adds an option -mdejagnu-cpu=.  This option simply overrides what
is given in -mcpu=.  The reason for this is that with older versions
of DejaGnu the value given in the RUNTESTFLAGS will override the value
a testcase wants to have.


	* config/rs6000/rs6000.c (rs6000_option_override_internal): If
	rs6000_dejagnu_cpu_index is set, use that to override rs6000_cpu_index.
	* config/rs6000/rs6000.opt (mdejagnu-cpu=): New option.

From-SVN: r269322
This commit is contained in:
Segher Boessenkool 2019-03-01 18:44:15 +01:00 committed by Segher Boessenkool
parent 5055060066
commit 75e2b35dd0
3 changed files with 16 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2019-03-01 Segher Boessenkool <segher@kernel.crashing.org>
* config/rs6000/rs6000.c (rs6000_option_override_internal): If
rs6000_dejagnu_cpu_index is set, use that to override rs6000_cpu_index.
* config/rs6000/rs6000.opt (mdejagnu-cpu=): New option.
2019-03-01 Alexander Monakov <amonakov@ispras.ru>
PR rtl-optimization/85899

3
gcc/config/rs6000/rs6000.c
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@ -3869,6 +3869,9 @@ rs6000_option_override_internal (bool global_init_p)
/* Don't override by the processor default if given explicitly. */
set_masks &= ~rs6000_isa_flags_explicit;
if (global_init_p && rs6000_dejagnu_cpu_index >= 0)
rs6000_cpu_index = rs6000_dejagnu_cpu_index;
/* Process the -mcpu=<xxx> and -mtune=<xxx> argument. If the user changed
the cpu in a target attribute or pragma, but did not specify a tuning
option, use the cpu for the tuning option rather than the option specified

7
gcc/config/rs6000/rs6000.opt
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@ -385,6 +385,13 @@ mtune=
Target RejectNegative Joined Var(rs6000_tune_index) Init(-1) Enum(rs6000_cpu_opt_value) Save
-mtune= Schedule code for given CPU.
; Only for use in the testsuite. This simply overrides -mcpu=. With older
; versions of Dejagnu the command line arguments you set in RUNTESTFLAGS
; override those set in the testcases; with this option, the testcase will
; always win.
mdejagnu-cpu=
Target Undocumented RejectNegative Joined Var(rs6000_dejagnu_cpu_index) Init(-1) Enum(rs6000_cpu_opt_value) Save
mtraceback=
Target RejectNegative Joined Enum(rs6000_traceback_type) Var(rs6000_traceback)
-mtraceback=[full,part,no] Select type of traceback table.