Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/CodeGen/WebAssembly/fast-isel-noreg.ll

@@ -0,0 +1,89 @@
+; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -verify-machineinstrs | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -fast-isel -verify-machineinstrs | FileCheck %s
+
+; Test that FastISel does not generate instructions with NoReg
+
+target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
+target triple = "wasm32-unknown-unknown-wasm"
+
+; CHECK: i32.const $push0=, 0
+define hidden i32 @a() #0 {
+entry:
+  ret i32 zext (i1 icmp eq (void (...)* inttoptr (i32 10 to void (...)*), void (...)* null) to i32)
+}
+
+; CHECK: i32.const $push0=, 1
+; CHECK: br_if 0, $pop0
+define hidden i32 @b() #0 {
+entry:
+  br i1 icmp eq (void (...)* inttoptr (i32 10 to void (...)*), void (...)* null), label %a, label %b
+a:
+  unreachable
+b:
+  ret i32 0
+}
+
+; CHECK: i32.const $push1=, 0
+; CHECK: i32.const $push2=, 0
+; CHECK: i32.store 0($pop1), $pop2
+define hidden i32 @c() #0 {
+entry:
+  store i32 zext (i1 icmp eq (void (...)* inttoptr (i32 10 to void (...)*), void (...)* null) to i32), i32* inttoptr (i32 0 to i32 *)
+  ret i32 0
+}
+
+; CHECK: i32.const {{.*}}, addr@FUNCTION
+; CHECK: i32.const {{.*}}, 24
+; CHECK: i32.shl
+; CHECK: i32.const {{.*}}, 24
+; CHECK: i32.shr_s
+; CHECK: i32.const {{.*}}, 64
+; CHECK: br_if 0, $pop0
+define hidden i32 @d() #0 {
+entry:
+  %t = icmp slt i8 ptrtoint (void ()* @addr to i8), 64
+  br i1 %t, label %a, label %b
+a:
+  unreachable
+b:
+  ret i32 0
+}
+
+; CHECK: i32.const {{.*}}, addr@FUNCTION
+; CHECK: i32.const {{.*}}, 255
+; CHECK: i32.and
+; CHECK: i32.const {{.*}}, 64
+; CHECK: br_if 0, $pop0
+define hidden i32 @e() #0 {
+entry:
+  %t = icmp ult i8 ptrtoint (void ()* @addr to i8), 64
+  br i1 %t, label %a, label %b
+a:
+  unreachable
+b:
+  ret i32 0
+}
+
+; CHECK: i32.const {{.*}}, addr@FUNCTION
+; CHECK: i32.const {{.*}}, 24
+; CHECK: i32.shl
+; CHECK: i32.const {{.*}}, 24
+; CHECK: i32.shr_s
+define hidden i32 @f() #0 {
+entry:
+  %t = sext i8 ptrtoint (void ()* @addr to i8) to i32
+  ret i32 %t
+}
+
+; CHECK: i32.const {{.*}}, addr@FUNCTION
+; CHECK: i32.const {{.*}}, 255
+; CHECK: i32.and
+define hidden i32 @g() #0 {
+entry:
+  %t = zext i8 ptrtoint (void ()* @addr to i8) to i32
+  ret i32 %t
+}
+
+declare void @addr()
+
+attributes #0 = { noinline optnone }