From 880f126233a377ee656612e68710eefe7964f646 Mon Sep 17 00:00:00 2001
From: Paul Murphy <paumurph@redhat.com>
Date: Fri, 27 Mar 2026 19:56:25 +0000
Subject: test/codegen: fix ppc64x rldicl bit test

The prove pass removes superfluous bit masking. This was meant to
test the edge cases of the ppc64 folding rules which are exactly
the cases the prove pass now removes.

Fixes #78403

Change-Id: I45eeac58e01b42e19b8a06bb0d7af96c616ccbff
Reviewed-on: https://go-review.googlesource.com/c/go/+/760307
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Paul Murphy <paumurph@redhat.com>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
---
 test/codegen/bits.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'test/codegen/bits.go')

diff --git a/test/codegen/bits.go b/test/codegen/bits.go
index 097d65e28a..ca9d857164 100644
--- a/test/codegen/bits.go
+++ b/test/codegen/bits.go
@@ -606,8 +606,8 @@ func bitsRotateAndMask(io64 [8]uint64, io32 [4]uint32, io16 [4]uint16, io8 [4]ui
 	io64[1] = io64[1] & 0x0000FFFFFFFFFFFF
 	// ppc64x: -"SRD", -"AND", "RLDICL [$]60, R[0-9]*, [$]16, R"
 	io64[2] = (io64[2] >> 4) & 0x0000FFFFFFFFFFFF
-	// ppc64x: -"SRD", -"AND", "RLDICL [$]36, R[0-9]*, [$]28, R"
-	io64[3] = (io64[3] >> 28) & 0x0000FFFFFFFFFFFF
+	// ppc64x: -"SRD" -"AND" "RLDICL [$]36, R[0-9]*, [$]29, R"
+	io64[3] = (io64[3] >> 28) & 0x00000007FFFFFFFF
 
 	// ppc64x: "MOVWZ", "RLWNM [$]1, R[0-9]*, [$]28, [$]3, R"
 	io64[4] = uint64(bits.RotateLeft32(io32[0], 1) & 0xF000000F)
-- 
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