testsuite: UnboxedTuples fails on powerpc64le

+++ ghci/should_run/UnboxedTuples/UnboxedTuples.run/UnboxedTuples.run.stderr.normalised	2021-03-26 11:39:02.060000000 +0000
@@ -0,0 +1,4 @@
+
+UnboxedTuples:6:30:
+    Not in scope: ‘Main.main’
+    No module named ‘Main’ is imported.

RTS linker is not implemented on this platform. Could this be the root cause of this error?

For more details see build log.

added needs triage label

added Phigh PowerPC Tbug UnboxedTuples code generation labels and removed needs triage label

added GHCi testsuite labels and removed code generation label

mentioned in merge request !5453 (closed)

It seems that UnboxedTuples passes when the bootstrap compiler is at version 8.10.4 and fails when it is at 9.0.1. This is on PowerPC Linux 64 bit little-enidan.

Today I observed a failed build that was bootstrapped with version 8.10.4.

mentioned in commit 429397ff

mentioned in merge request !5765 (closed)

mentioned in commit afde919a

mentioned in commit d5405086

mentioned in commit 8306f2c9

mentioned in commit 6e288a2b

mentioned in commit df638336

mentioned in commit 3c4effdf

closed with commit 6a577cf0

mentioned in commit 6a577cf0

mentioned in commit 1ddc0ec7

reopened

This has not been fixed by 6a577cf0.

I wonder why this test is so fragile on powerpc64le.

mentioned in commit aa3bbb77

mentioned in commit 475a0551

mentioned in merge request !5838 (closed)

mentioned in commit 71bf20dd

mentioned in commit a9f14d67

mentioned in commit 47b67753

mentioned in commit cf93de4d

mentioned in commit 39ad330c