Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/test/CodeGen/ARM/t2abs-killflags.ll

@@ -0,0 +1,23 @@
+; RUN: llc %s -o - -verify-machineinstrs | FileCheck %s
+
+target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
+target triple = "thumbv7s-unknown-unknown"
+
+; Test that we don't crash the machine verifier when expanding t2ABS.
+; It was applying the kill flag to its source, even if the original t2ABS didn't
+; kill the operand prior to pseudo expansion.
+
+; Function Attrs: noreturn
+declare void @foo(i32, i32) #0
+
+; CHECK-LABEL: @test
+; CHECK: rsbmi
+define void @test(i32 %arg) {
+  %cmp58 = icmp slt i32 %arg, 0
+  %sub62 = sub nsw i32 0, %arg
+  %l.1 = select i1 %cmp58, i32 %sub62, i32 %arg
+  call void @foo(i32 %l.1, i32 %arg) #0
+  unreachable
+}
+
+attributes #0 = { noreturn }