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llvm-project/llvm/test/CodeGen/ARM/subtarget-features-long-cal...

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ARM: Do not use llc -march in tests. `llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309755
2017-08-02 06:20:49 +08:00
; 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
[ARM] Define a subtarget feature and use it to decide whether long calls should be emitted. This is needed to enable ARM long calls for LTO and enable and disable it on a per-function basis. Out-of-tree projects currently using EnableARMLongCalls to emit long calls should start passing "+long-calls" to the feature string (see the changes made to clang in r241565). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D9364 llvm-svn: 241566
2015-07-07 14:54:42 +08:00
; NO-OPTION-LABEL: {{_?}}caller0
Fix test case to unbreak build. This commit changes the target arch to fix the test case commited in r241566 that was failing on ninja-x64-msvc-RA-centos6. Also add checks to make sure the callee's address is loaded to blx's operand. llvm-svn: 241588
2015-07-07 22:45:12 +08:00
; NO-OPTION: ldr [[R0:r[0-9]+]], [[L0:.*]]
; NO-OPTION: blx [[R0]]
; NO-OPTION: [[L0]]:
; NO-OPTION: .long {{_?}}callee0
[ARM] Define a subtarget feature and use it to decide whether long calls should be emitted. This is needed to enable ARM long calls for LTO and enable and disable it on a per-function basis. Out-of-tree projects currently using EnableARMLongCalls to emit long calls should start passing "+long-calls" to the feature string (see the changes made to clang in r241565). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D9364 llvm-svn: 241566
2015-07-07 14:54:42 +08:00
; LONGCALL-LABEL: {{_?}}caller0
Fix test case to unbreak build. This commit changes the target arch to fix the test case commited in r241566 that was failing on ninja-x64-msvc-RA-centos6. Also add checks to make sure the callee's address is loaded to blx's operand. llvm-svn: 241588
2015-07-07 22:45:12 +08:00
; LONGCALL: ldr [[R0:r[0-9]+]], [[L0:.*]]
; LONGCALL: blx [[R0]]
; LONGCALL: [[L0]]:
; LONGCALL: .long {{_?}}callee0
[ARM] Define a subtarget feature and use it to decide whether long calls should be emitted. This is needed to enable ARM long calls for LTO and enable and disable it on a per-function basis. Out-of-tree projects currently using EnableARMLongCalls to emit long calls should start passing "+long-calls" to the feature string (see the changes made to clang in r241565). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D9364 llvm-svn: 241566
2015-07-07 14:54:42 +08:00
; 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
Fix test case to unbreak build. This commit changes the target arch to fix the test case commited in r241566 that was failing on ninja-x64-msvc-RA-centos6. Also add checks to make sure the callee's address is loaded to blx's operand. llvm-svn: 241588
2015-07-07 22:45:12 +08:00
; LONGCALL: ldr [[R0:r[0-9]+]], [[L0:.*]]
; LONGCALL: blx [[R0]]
; LONGCALL: [[L0]]:
; LONGCALL: .long {{_?}}callee0
[ARM] Define a subtarget feature and use it to decide whether long calls should be emitted. This is needed to enable ARM long calls for LTO and enable and disable it on a per-function basis. Out-of-tree projects currently using EnableARMLongCalls to emit long calls should start passing "+long-calls" to the feature string (see the changes made to clang in r241565). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D9364 llvm-svn: 241566
2015-07-07 14:54:42 +08:00
; 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" }