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llvm-project/clang/test/CodeGen/arm-long-calls.c

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[ARM] Pass subtarget feature "+long-calls" instead of passing backend option "-arm-long-calls". This change allows using -mlong-calls/-mno-long-calls for LTO and enabling or disabling long call on a per-function basis. rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D9414 llvm-svn: 241565
2015-07-07 14:42:05 +08:00
// RUN: %clang_cc1 -triple thumbv7-apple-ios5 -target-feature +long-calls -emit-llvm -o - %s | FileCheck -check-prefix=LONGCALL %s
// RUN: %clang_cc1 -triple thumbv7-apple-ios5 -emit-llvm -o - %s | FileCheck -check-prefix=NOLONGCALL %s
[CodeGen] Add thumb-mode to target-features for arm/thumb triples. Summary: The thumb-mode target feature is used to force Thumb or ARM code generation on a per-function basis. Explicitly adding +thumb-mode to functions for thumbxx triples enables mixed ARM/Thumb code generation in places where compilation units with thumbxx and armxx triples are merged together (e.g. the IR linker or LTO). For armxx triples, -thumb-mode is added in a similar fashion. Reviewers: echristo, t.p.northover, kristof.beyls, rengolin Reviewed By: echristo Subscribers: rinon, aemerson, mehdi_amini, javed.absar, cfe-commits Differential Revision: https://reviews.llvm.org/D33448 llvm-svn: 304897
2017-06-07 19:50:45 +08:00
// LONGCALL: attributes #0 = { {{.*}} "target-features"="+long-calls,+thumb-mode"
// NOLONGCALL-NOT: attributes #0 = { {{.*}} "target-features"="+long-calls,+thumb-mode"
[ARM] Pass subtarget feature "+long-calls" instead of passing backend option "-arm-long-calls". This change allows using -mlong-calls/-mno-long-calls for LTO and enabling or disabling long call on a per-function basis. rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D9414 llvm-svn: 241565
2015-07-07 14:42:05 +08:00
int foo1(int a) { return a; }