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From: "gcc at octaforge dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/113174] gcc fails to bootstrap on pp64le with
 clang-based host environment (internal compiler error)
Date: Sun, 07 Jan 2024 04:24:09 +0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: bootstrap
X-Bugzilla-Version: 13.2.1
X-Bugzilla-Keywords: build, ice-on-valid-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113174

--- Comment #8 from Daniel Kolesa <gcc at octaforge dot org> ---
I tried an experiment: I canceled the build after initial generation of
insn-recog.cc and patched the offending part with logic from a stage-2
insn-recog.cc I managed to previously capture:

```
--- insn-recog.cc.orig  2024-01-07 04:46:19.328295337 +0100
+++ insn-recog.cc       2024-01-07 04:41:52.025630846 +0100
@@ -41675,11 +41675,12 @@
       break;
     }
   operands[0] =3D x3;
-  if (!gpc_reg_operand (operands[0], E_SImode)
+  if (GET_CODE (x2) !=3D MEM
       || GET_MODE (x2) !=3D E_SImode)
     return -1;
   x4 =3D XEXP (x2, 0);
-  if (GET_MODE (x4) !=3D E_SImode)
+  if (GET_CODE (x4) !=3D PLUS
+      || GET_MODE (x4) !=3D E_SImode)
     return -1;
   switch (GET_CODE (x2))
     {
```

This allowed all 3 stages to finish building. It results in lots of failed
comparisons for stage2 and stage3 files though, and is obviously not a work=
able
solution.=