Add Om1 lowering with no optimizations

tests_lit/llvm2ice_tests/simple-cond.ll

Index: tests_lit/llvm2ice_tests/simple-cond.ll
diff --git a/tests_lit/llvm2ice_tests/simple-cond.ll b/tests_lit/llvm2ice_tests/simple-cond.ll
deleted file mode 100644
index 2161a593d41c7d1dd8539d96c0ebf9e9ff70d820..0000000000000000000000000000000000000000
--- a/tests_lit/llvm2ice_tests/simple-cond.ll
+++ /dev/null
@@ -1,32 +0,0 @@
-; RUIN: %llvm2ice -verbose inst %s | FileCheck %s
-; RUIN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
-; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
-; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
-; RUN:                           | FileCheck --check-prefix=DUMP %s
-
-define internal i32 @simple_cond(i32 %a, i32 %n) {
-entry:
-  %cmp = icmp slt i32 %n, 0
-; CHECK:  %cmp = icmp slt i32 %n, 0
-  br i1 %cmp, label %if.then, label %if.else
-; CHECK-NEXT:  br i1 %cmp, label %if.then, label %if.else
-
-if.then:
-  %sub = sub i32 1, %n
-  br label %if.end
-
-if.else:
-  %gep_array = mul i32 %n, 4
-  %gep = add i32 %a, %gep_array
-  %__6 = inttoptr i32 %gep to i32*
-  %v0 = load i32* %__6, align 1
-  br label %if.end
-
-if.end:
-  %result.0 = phi i32 [ %sub, %if.then ], [ %v0, %if.else ]
-; CHECK: %result.0 = phi i32 [ %sub, %if.then ], [ %v0, %if.else ]
-  ret i32 %result.0
-}
-
-; ERRORS-NOT: ICE translation error
-; DUMP-NOT: SZ