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author | Florian Hahn <florian.hahn@arm.com> | 2017-06-07 09:17:01 +0000 |
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committer | Florian Hahn <florian.hahn@arm.com> | 2017-06-07 09:17:01 +0000 |
commit | 4d6ca733344822e3356fb31a2dd7544eb825d292 (patch) | |
tree | 97844546e48c36ca97fad3e44ccd20b26f4e99a6 /test/LTO | |
parent | f7b325279105f5d4c76384675683df6d89d629db (diff) |
[Linker] Remove warning when linking ARM and Thumb IR modules.
Summary:
This patch updates Triple::isCompatibleWith to make armxx and thumbxx
triples compatible, as long as the subarch, vendor, os, envorionment and
object format match. Thumb/ARM code generation should be controlled
using the thumb-mode per-function target feature rather than by the
triple to allow mixing Thumb and ARM functions.
D33448 updates Clang's codegen to add thumb-mode for all functions with
armxx or thumbxx triples.
Reviewers: echristo, t.p.northover, rafael, kristof.beyls, rengolin, tejohnson
Reviewed By: tejohnson
Subscribers: rinon, eugenis, pcc, srhines, aemerson, mehdi_amini, javed.absar, llvm-commits
Differential Revision: https://reviews.llvm.org/D33287
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304884 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/LTO')
-rw-r--r-- | test/LTO/ARM/Inputs/thumb.ll | 15 | ||||
-rw-r--r-- | test/LTO/ARM/link-arm-and-thumb.ll | 32 |
2 files changed, 47 insertions, 0 deletions
diff --git a/test/LTO/ARM/Inputs/thumb.ll b/test/LTO/ARM/Inputs/thumb.ll new file mode 100644 index 00000000000..cb8c2dfa558 --- /dev/null +++ b/test/LTO/ARM/Inputs/thumb.ll @@ -0,0 +1,15 @@ +target triple = "thumbv7-linux-gnueabihf" + +define i32 @foo(i32 %a, i32 %b) #0 { +entry: + %add = add i32 %a, %b + ret i32 %add +} + +define i32 @bar(i32 %a, i32 %b) #0 { +entry: + %add = add i32 %a, %b + ret i32 %add +} + +attributes #0 = { "target-features"="+thumb-mode" } diff --git a/test/LTO/ARM/link-arm-and-thumb.ll b/test/LTO/ARM/link-arm-and-thumb.ll new file mode 100644 index 00000000000..743e3f66194 --- /dev/null +++ b/test/LTO/ARM/link-arm-and-thumb.ll @@ -0,0 +1,32 @@ +; Testcase to check that functions from a Thumb module can be inlined in an +; ARM function. +; +; RUN: llvm-as %s -o %t1.bc +; RUN: llvm-as %p/Inputs/thumb.ll -o %t2.bc +; RUN: llvm-lto -exported-symbol main \ +; RUN: -exported-symbol bar \ +; RUN: -filetype=asm \ +; RUN: -o - \ +; RUN: %t1.bc %t2.bc 2> %t3.out| FileCheck %s +; RUN: FileCheck --allow-empty --input-file %t3.out --check-prefix STDERR %s + +target triple = "armv7-linux-gnueabihf" + +; CHECK: .code 32 +; CHECK-NEXT: main +; CHECK-NEXT: .fnstart +; CHECK-NEXT: mov r0, #30 + +; CHECK: .code 16 +; CHECK-NEXT: .thumb_func +; CHECK-NEXT: bar + +declare i32 @foo(i32 %a, i32 %b); + +define i32 @main() { +entry: + %add = call i32 @foo(i32 10, i32 20) + ret i32 %add +} + +; STDERR-NOT: warning: Linking two modules of different target triples: |