Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/test/CodeGen/X86/inline-asm-flag-clobber.ll

@@ -0,0 +1,32 @@
+; RUN: llc -mtriple=x86_64-- -no-integrated-as < %s | FileCheck %s
+; PR3701
+
+define i64 @t(i64* %arg) nounwind {
+        br i1 true, label %1, label %5
+
+; <label>:1             ; preds = %0
+        %2 = icmp eq i64* null, %arg            ; <i1> [#uses=1]
+        %3 = tail call i64* asm sideeffect "movl %fs:0,$0", "=r,~{dirflag},~{fpsr},~{flags}"() nounwind         ; <%struct.thread*> [#uses=0]
+; CHECK: test
+; CHECK-NEXT: j
+        br i1 %2, label %4, label %5
+
+; <label>:4             ; preds = %1
+        ret i64 1
+
+; <label>:5             ; preds = %1
+        ret i64 0
+}
+
+; Make sure that we translate this to the bswap intrinsic which lowers down without the
+; inline assembly.
+; CHECK-NOT: #APP
+define i32 @s(i32 %argc, i8** nocapture %argv) unnamed_addr nounwind {
+entry:
+  %0 = trunc i32 %argc to i16
+  %asmtmp = tail call i16 asm "rorw $$8, ${0:w}", "=r,0,~{fpsr},~{flags},~{cc}"(i16 %0) nounwind, !srcloc !0
+  %1 = zext i16 %asmtmp to i32
+  ret i32 %1
+}
+
+!0 = !{i64 935930}