PowerPC: test T20638 fails on powerpc64 big-endian Linux
T20638 fails with wrong result at runtime:
--- cmm/should_run/machops/T20638.run/T20638.stdout.normalised 2022-01-03 17:42:28.482855960 +0100
+++ cmm/should_run/machops/T20638.run/T20638.run.stdout.normalised 2022-01-03 17:42:28.482855960 +0100
@@ -1 +1 @@
-16576
+16448
*** unexpected failure for T20638(normal)
The test passes on powerpc64le.
Operating System: Void Linux (ELF v2)
Architecture: powerpc64 (big-endian)