[EVM] Add pre-commit test for Select (setcc x, 0, ne) as ISZERO ISZERO

Author: akiramenai

llvm/test/CodeGen/EVM/setcc-with-0-selection.ll

@@ -0,0 +1,28 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc  < %s | FileCheck %s
+target datalayout = "E-p:256:256-i256:256:256-S256-a:256:256"
+target triple = "evm-unknown-unknown"
+
+define i1 @test_eq(i256 %x) {
+; CHECK-LABEL: test_eq:
+; CHECK:       ; %bb.0:
+; CHECK-NEXT:    JUMPDEST
+; CHECK-NEXT:    ISZERO
+; CHECK-NEXT:    SWAP1
+; CHECK-NEXT:    JUMP
+  %cmp = icmp eq i256 %x, 0
+  ret i1 %cmp
+}
+
+define i1 @test_ne(i256 %x) {
+; CHECK-LABEL: test_ne:
+; CHECK:       ; %bb.0:
+; CHECK-NEXT:    JUMPDEST
+; CHECK-NEXT:    PUSH0
+; CHECK-NEXT:    EQ
+; CHECK-NEXT:    ISZERO
+; CHECK-NEXT:    SWAP1
+; CHECK-NEXT:    JUMP
+  %cmp = icmp ne i256 %x, 0
+  ret i1 %cmp
+}