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| author | Eugene Leviant <eleviant@accesssoftek.com> | 2017-01-09 09:56:31 +0000 |
|---|---|---|
| committer | Eugene Leviant <eleviant@accesssoftek.com> | 2017-01-09 09:56:31 +0000 |
| commit | be2d68f774a4f032cd316601d0f9f2a363466401 (patch) | |
| tree | e5fc0d2f1b42707fbbca684a88ec5be8c8650d64 /llvm/test/ExecutionEngine | |
| parent | 3d574572989190573e65ed40cd2277d53a33550f (diff) | |
| download | bcm5719-llvm-be2d68f774a4f032cd316601d0f9f2a363466401.tar.gz bcm5719-llvm-be2d68f774a4f032cd316601d0f9f2a363466401.zip | |
RuntimeDyldELF: don't create thunk if not needed
This patch doesn't create thunk for branch operation when following conditions are met:
- Architecture is AArch64
- Relocation target is in the same object file
- Relocation target is close enough to be encoded in immediate offset
In such case we branch directly to the target instead of branching to thunk
Differential revision: https://reviews.llvm.org/D28108
llvm-svn: 291431
Diffstat (limited to 'llvm/test/ExecutionEngine')
| -rw-r--r-- | llvm/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_local_branch.s | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_local_branch.s b/llvm/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_local_branch.s new file mode 100644 index 00000000000..679930a14e0 --- /dev/null +++ b/llvm/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_local_branch.s @@ -0,0 +1,14 @@ +# RUN: llvm-mc -triple=arm64-none-linux-gnu -filetype=obj -o %T/branch.o %s +# RUN: llvm-rtdyld -triple=arm64-none-linux-gnu -verify -check=%s %T/branch.o + +.globl _main +.weak _label1 + +.section .text.1,"ax" +_label1: + nop +_main: + b _label1 + +## Branch 1 instruction back from _main +# rtdyld-check: *{4}(_main) = 0x17ffffff |
