test/codegen: updated comparison test to verify on ppc64,ppc64le

Updated test/codegen/comparison.go to verify memequal is inlined
as implemented in CL 328291.

Change-Id: If7824aed37ee1f8640e54fda0f9b7610582ba316
Reviewed-on: https://go-review.googlesource.com/c/go/+/357289
Run-TryBot: Lynn Boger <[email protected]>
TryBot-Result: Go Bot <[email protected]>
Trust: Lynn Boger <[email protected]>
Reviewed-by: Cherry Mui <[email protected]>

Author: Archana R

test/codegen/comparisons.go

@@ -546,13 +546,17 @@ func equalConstString1() bool {
 	b := string("Z")
 	// amd64:-".*memequal"
 	// arm64:-".*memequal"
+	// ppc64:-".*memequal"
+	// ppc64le:-".*memequal"
 	return a == b
 }
 
 func equalVarString1(a string) bool {
 	b := string("Z")
 	// amd64:-".*memequal"
 	// arm64:-".*memequal"
+	// ppc64:-".*memequal"
+	// ppc64le:-".*memequal"
 	return a[:1] == b
 }
 
@@ -561,13 +565,17 @@ func equalConstString2() bool {
 	b := string("ZZ")
 	// amd64:-".*memequal"
 	// arm64:-".*memequal"
+	// ppc64:-".*memequal"
+	// ppc64le:-".*memequal"
 	return a == b
 }
 
 func equalVarString2(a string) bool {
 	b := string("ZZ")
 	// amd64:-".*memequal"
 	// arm64:-".*memequal"
+	// ppc64:-".*memequal"
+	// ppc64le:-".*memequal"
 	return a[:2] == b
 }
 
@@ -576,13 +584,17 @@ func equalConstString4() bool {
 	b := string("ZZZZ")
 	// amd64:-".*memequal"
 	// arm64:-".*memequal"
+	// ppc64:-".*memequal"
+	// ppc64le:-".*memequal"
 	return a == b
 }
 
 func equalVarString4(a string) bool {
 	b := string("ZZZZ")
 	// amd64:-".*memequal"
 	// arm64:-".*memequal"
+	// ppc64:-".*memequal"
+	// ppc64le:-".*memequal"
 	return a[:4] == b
 }
 
@@ -591,12 +603,16 @@ func equalConstString8() bool {
 	b := string("ZZZZZZZZ")
 	// amd64:-".*memequal"
 	// arm64:-".*memequal"
+	// ppc64:-".*memequal"
+	// ppc64le:-".*memequal"
 	return a == b
 }
 
 func equalVarString8(a string) bool {
 	b := string("ZZZZZZZZ")
 	// amd64:-".*memequal"
 	// arm64:-".*memequal"
+	// ppc64:-".*memequal"
+	// ppc64le:-".*memequal"
 	return a[:8] == b
 }