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Apply workaround for PR bootstrap/80897

Message ID 2094906.5CVu2JoCOU@polaris
State New
Headers show

Commit Message

Eric Botcazou June 12, 2017, 11:29 a.m. UTC 
This is the build failure of the Ada runtime on SPARC64/Linux, caused by a 
miscompilation of the Ada front-end at -O2 or above.  The symptom is exactly 
the same as that of PR middle-end/44993, which was a similar build failure, 
although the root cause is slightly different.

It's delicate stuff in the middle-end so I'm applying a trivial workaround to 
the Ada front-end to unbreak the build and I'll create a testcase separately.

Boostrapped/regtested on SPARC64/Linux, applied on the mainline.


2017-06-12  Eric Botcazou  <ebotcazou@adacore.com>

	PR bootstrap/80897
	* exp_ch3.adb (Make_Predefined_Primitive_Specs): Use Positive index.
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Patch

Index: exp_ch3.adb
===================================================================
--- exp_ch3.adb	(revision 249091)
+++ exp_ch3.adb	(working copy)
@@ -9216,7 +9216,7 @@  package body Exp_Ch3 is
 
       declare
          Stream_Op_TSS_Names :
-           constant array (Integer range <>) of TSS_Name_Type :=
+           constant array (Positive range <>) of TSS_Name_Type :=
              (TSS_Stream_Read,
               TSS_Stream_Write,
               TSS_Stream_Input,