[PATCH] D112600: [ARM] Use hardware TLS register in Thumb2 mode when -mtp=cp15 is passed

[Nick Desaulniers via Phabricator via cfe-commits]

nickdesaulniers requested changes to this revision.
nickdesaulniers added a comment.
This revision now requires changes to proceed.

Thanks for the patch!



================
Comment at: clang/test/CodeGen/arm-tphard.c:10
+}
+
----------------
Let's make this a test under llvm/test/CodeGen/, using IR:
```
; RUN: llc --mtriple=armv7-linux-gnueabihf -o - %s | FileCheck %s
; RUN: llc --mtriple=thumbv7-linux-gnu -o - %s | FileCheck %s
define dso_local i8* @tphard() "target-features"="+read-tp-hard" {
// CHECK-NOT: __aeabi_read_tp
  %1 = tail call i8* @llvm.thread.pointer()
  ret i8* %1
}

declare i8* @llvm.thread.pointer()
```



Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D112600/new/

https://reviews.llvm.org/D112600