Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/test/CodeGen/ARM/subtarget-features-long-calls.ll

@@ -0,0 +1,49 @@
+; RUN: llc -mtriple=thumb-- -mcpu=cortex-a8 -relocation-model=static %s -o - | FileCheck -check-prefix=NO-OPTION %s
+; RUN: llc -mtriple=thumb-- -mcpu=cortex-a8 -relocation-model=static %s -o - -mattr=+long-calls | FileCheck -check-prefix=LONGCALL %s
+; RUN: llc -mtriple=thumb-- -mcpu=cortex-a8 -relocation-model=static %s -o - -mattr=-long-calls | FileCheck -check-prefix=NO-LONGCALL %s
+; RUN: llc -mtriple=thumb-- -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 | FileCheck -check-prefix=NO-OPTION %s
+; RUN: llc -mtriple=thumb-- -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 -mattr=+long-calls | FileCheck -check-prefix=LONGCALL %s
+; RUN: llc -mtriple=thumb-- -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 -mattr=-long-calls | FileCheck -check-prefix=NO-LONGCALL %s
+
+; NO-OPTION-LABEL: {{_?}}caller0
+; NO-OPTION: ldr [[R0:r[0-9]+]], [[L0:.*]] 
+; NO-OPTION: blx [[R0]]
+; NO-OPTION: [[L0]]:
+; NO-OPTION: .long {{_?}}callee0
+
+; LONGCALL-LABEL: {{_?}}caller0
+; LONGCALL: ldr [[R0:r[0-9]+]], [[L0:.*]]
+; LONGCALL: blx [[R0]]
+; LONGCALL: [[L0]]:
+; LONGCALL: .long {{_?}}callee0
+
+; NO-LONGCALL-LABEL: {{_?}}caller0
+; NO-LONGCALL: bl {{_?}}callee0
+
+define i32 @caller0() #0 {
+entry:
+  tail call void @callee0()
+  ret i32 0
+}
+
+; NO-OPTION-LABEL: {{_?}}caller1
+; NO-OPTION: bl {{_?}}callee0
+
+; LONGCALL-LABEL: {{_?}}caller1
+; LONGCALL: ldr [[R0:r[0-9]+]], [[L0:.*]]
+; LONGCALL: blx [[R0]]
+; LONGCALL: [[L0]]:
+; LONGCALL: .long {{_?}}callee0
+
+; NO-LONGCALL-LABEL: {{_?}}caller1
+; NO-LONGCALL: bl {{_?}}callee0
+
+define i32 @caller1() {
+entry:
+  tail call void @callee0()
+  ret i32 0
+}
+
+declare void @callee0()
+
+attributes #0 = { "target-features"="+long-calls" }