[llvm] [GISel] Lower scalar G_SELECT in LegalizerHelper (PR #79342)

[David Green via llvm-commits]

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@@ -3431,6 +3431,45 @@ TEST_F(AArch64GISelMITest, LowerUDIVREM) {
   EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
 }
 
+// Test G_SELECT lowering.
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davemgreen wrote:

It might be good to add a comment to say we don't expect to legalize scalar selects on aarch64 like this, but it is useful for testing.

https://github.com/llvm/llvm-project/pull/79342