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llvm-project/llvm/test/CodeGen/ARM/subtarget-no-movt.ll

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[ARM] Define a subtarget feature that is used to avoid using movt/movw pairs for 32-bit immediates. This change is needed to avoid emitting movt/movw pairs when doing LTO and do so on a per-function basis. Out-of-tree projects currently using cl::opt option -arm-use-movt=0 or false to avoid emitting movt/movw pairs should make changes to add subtarget feature "+no-movt" (see the changes made to clang in r242368). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D11026 llvm-svn: 242369
2015-07-16 08:58:23 +08:00
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - | FileCheck -check-prefix=NO-OPTION %s
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -mattr=-no-movt | FileCheck -check-prefix=USE-MOVT %s
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -mattr=+no-movt | FileCheck -check-prefix=NO-USE-MOVT %s
[ARM] Constant Materialize: imms with specific value can be encoded into mov.w Summary: Thumb2 supports encoding immediates with specific patterns into mov.w by splatting the low 8 bits into other bytes. I'm resubmitting this patch. The test case in the original commit r277610 does not specify triple, so builds with differnt default triple will have different output. This patch fixed trile as thumb-darwin-apple. Reviewers: john.brawn, jmolloy, bruno Subscribers: jmolloy, aemerson, rengolin, samparker, llvm-commits Differential Revision: https://reviews.llvm.org/D23090 llvm-svn: 277865
2016-08-06 04:58:29 +08:00
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 | FileCheck -check-prefix=NO-OPTION-O0 %s
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 -mattr=-no-movt | FileCheck -check-prefix=USE-MOVT-O0 %s
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 -mattr=+no-movt | FileCheck -check-prefix=NO-USE-MOVT-O0 %s
target triple = "thumb-apple-darwin"
[ARM] Define a subtarget feature that is used to avoid using movt/movw pairs for 32-bit immediates. This change is needed to avoid emitting movt/movw pairs when doing LTO and do so on a per-function basis. Out-of-tree projects currently using cl::opt option -arm-use-movt=0 or false to avoid emitting movt/movw pairs should make changes to add subtarget feature "+no-movt" (see the changes made to clang in r242368). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D11026 llvm-svn: 242369
2015-07-16 08:58:23 +08:00
; NO-OPTION-LABEL: {{_?}}foo0
; NO-OPTION: ldr [[R0:r[0-9]+]], [[L0:.*]]
; NO-OPTION: [[L0]]:
; NO-OPTION: .long 2296237089
[ARM] Constant Materialize: imms with specific value can be encoded into mov.w Summary: Thumb2 supports encoding immediates with specific patterns into mov.w by splatting the low 8 bits into other bytes. I'm resubmitting this patch. The test case in the original commit r277610 does not specify triple, so builds with differnt default triple will have different output. This patch fixed trile as thumb-darwin-apple. Reviewers: john.brawn, jmolloy, bruno Subscribers: jmolloy, aemerson, rengolin, samparker, llvm-commits Differential Revision: https://reviews.llvm.org/D23090 llvm-svn: 277865
2016-08-06 04:58:29 +08:00
; NO-OPTION-O0-LABEL: {{_?}}foo0
; NO-OPTION-O0: ldr [[R0:r[0-9]+]], [[L0:.*]]
; NO-OPTION-O0: [[L0]]:
; NO-OPTION-O0: .long 2296237089
[ARM] Define a subtarget feature that is used to avoid using movt/movw pairs for 32-bit immediates. This change is needed to avoid emitting movt/movw pairs when doing LTO and do so on a per-function basis. Out-of-tree projects currently using cl::opt option -arm-use-movt=0 or false to avoid emitting movt/movw pairs should make changes to add subtarget feature "+no-movt" (see the changes made to clang in r242368). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D11026 llvm-svn: 242369
2015-07-16 08:58:23 +08:00
; USE-MOVT-LABEL: {{_?}}foo0
; USE-MOVT: movw [[R0:r[0-9]+]], #52257
; USE-MOVT: movt [[R0]], #35037
[ARM] Constant Materialize: imms with specific value can be encoded into mov.w Summary: Thumb2 supports encoding immediates with specific patterns into mov.w by splatting the low 8 bits into other bytes. I'm resubmitting this patch. The test case in the original commit r277610 does not specify triple, so builds with differnt default triple will have different output. This patch fixed trile as thumb-darwin-apple. Reviewers: john.brawn, jmolloy, bruno Subscribers: jmolloy, aemerson, rengolin, samparker, llvm-commits Differential Revision: https://reviews.llvm.org/D23090 llvm-svn: 277865
2016-08-06 04:58:29 +08:00
; USE-MOVT-O0-LABEL: {{_?}}foo0
; USE-MOVT-O0: movw [[R0:r[0-9]+]], #52257
; USE-MOVT-O0: movt [[R0]], #35037
[ARM] Define a subtarget feature that is used to avoid using movt/movw pairs for 32-bit immediates. This change is needed to avoid emitting movt/movw pairs when doing LTO and do so on a per-function basis. Out-of-tree projects currently using cl::opt option -arm-use-movt=0 or false to avoid emitting movt/movw pairs should make changes to add subtarget feature "+no-movt" (see the changes made to clang in r242368). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D11026 llvm-svn: 242369
2015-07-16 08:58:23 +08:00
; NO-USE-MOVT-LABEL: {{_?}}foo0
; NO-USE-MOVT: ldr [[R0:r[0-9]+]], [[L0:.*]]
; NO-USE-MOVT: [[L0]]:
; NO-USE-MOVT: .long 2296237089
[ARM] Constant Materialize: imms with specific value can be encoded into mov.w Summary: Thumb2 supports encoding immediates with specific patterns into mov.w by splatting the low 8 bits into other bytes. I'm resubmitting this patch. The test case in the original commit r277610 does not specify triple, so builds with differnt default triple will have different output. This patch fixed trile as thumb-darwin-apple. Reviewers: john.brawn, jmolloy, bruno Subscribers: jmolloy, aemerson, rengolin, samparker, llvm-commits Differential Revision: https://reviews.llvm.org/D23090 llvm-svn: 277865
2016-08-06 04:58:29 +08:00
; NO-USE-MOVT-O0-LABEL: {{_?}}foo0
; NO-USE-MOVT-O0: ldr [[R0:r[0-9]+]], [[L0:.*]]
; NO-USE-MOVT-O0: [[L0]]:
; NO-USE-MOVT-O0: .long 2296237089
[ARM] Define a subtarget feature that is used to avoid using movt/movw pairs for 32-bit immediates. This change is needed to avoid emitting movt/movw pairs when doing LTO and do so on a per-function basis. Out-of-tree projects currently using cl::opt option -arm-use-movt=0 or false to avoid emitting movt/movw pairs should make changes to add subtarget feature "+no-movt" (see the changes made to clang in r242368). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D11026 llvm-svn: 242369
2015-07-16 08:58:23 +08:00
define i32 @foo0(i32 %a) #0 {
%1 = xor i32 -1998730207, %a
ret i32 %1
}
; NO-OPTION-LABEL: {{_?}}foo1
; NO-OPTION: movw [[R0:r[0-9]+]], #52257
; NO-OPTION: movt [[R0]], #35037
[ARM] Constant Materialize: imms with specific value can be encoded into mov.w Summary: Thumb2 supports encoding immediates with specific patterns into mov.w by splatting the low 8 bits into other bytes. I'm resubmitting this patch. The test case in the original commit r277610 does not specify triple, so builds with differnt default triple will have different output. This patch fixed trile as thumb-darwin-apple. Reviewers: john.brawn, jmolloy, bruno Subscribers: jmolloy, aemerson, rengolin, samparker, llvm-commits Differential Revision: https://reviews.llvm.org/D23090 llvm-svn: 277865
2016-08-06 04:58:29 +08:00
; NO-OPTION-O0-LABEL: {{_?}}foo1
; NO-OPTION-O0: movw [[R0:r[0-9]+]], #52257
; NO-OPTION-O0: movt [[R0]], #35037
[ARM] Define a subtarget feature that is used to avoid using movt/movw pairs for 32-bit immediates. This change is needed to avoid emitting movt/movw pairs when doing LTO and do so on a per-function basis. Out-of-tree projects currently using cl::opt option -arm-use-movt=0 or false to avoid emitting movt/movw pairs should make changes to add subtarget feature "+no-movt" (see the changes made to clang in r242368). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D11026 llvm-svn: 242369
2015-07-16 08:58:23 +08:00
; USE-MOVT-LABEL: {{_?}}foo1
; USE-MOVT: movw [[R0:r[0-9]+]], #52257
; USE-MOVT: movt [[R0]], #35037
[ARM] Constant Materialize: imms with specific value can be encoded into mov.w Summary: Thumb2 supports encoding immediates with specific patterns into mov.w by splatting the low 8 bits into other bytes. I'm resubmitting this patch. The test case in the original commit r277610 does not specify triple, so builds with differnt default triple will have different output. This patch fixed trile as thumb-darwin-apple. Reviewers: john.brawn, jmolloy, bruno Subscribers: jmolloy, aemerson, rengolin, samparker, llvm-commits Differential Revision: https://reviews.llvm.org/D23090 llvm-svn: 277865
2016-08-06 04:58:29 +08:00
; USE-MOVT-O0-LABEL: {{_?}}foo1
; USE-MOVT-O0: movw [[R0:r[0-9]+]], #52257
; USE-MOVT-O0: movt [[R0]], #35037
[ARM] Define a subtarget feature that is used to avoid using movt/movw pairs for 32-bit immediates. This change is needed to avoid emitting movt/movw pairs when doing LTO and do so on a per-function basis. Out-of-tree projects currently using cl::opt option -arm-use-movt=0 or false to avoid emitting movt/movw pairs should make changes to add subtarget feature "+no-movt" (see the changes made to clang in r242368). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D11026 llvm-svn: 242369
2015-07-16 08:58:23 +08:00
; NO-USE-MOVT-LABEL: {{_?}}foo1
; NO-USE-MOVT: ldr [[R0:r[0-9]+]], [[L0:.*]]
; NO-USE-MOVT: [[L0]]:
; NO-USE-MOVT: .long 2296237089
[ARM] Constant Materialize: imms with specific value can be encoded into mov.w Summary: Thumb2 supports encoding immediates with specific patterns into mov.w by splatting the low 8 bits into other bytes. I'm resubmitting this patch. The test case in the original commit r277610 does not specify triple, so builds with differnt default triple will have different output. This patch fixed trile as thumb-darwin-apple. Reviewers: john.brawn, jmolloy, bruno Subscribers: jmolloy, aemerson, rengolin, samparker, llvm-commits Differential Revision: https://reviews.llvm.org/D23090 llvm-svn: 277865
2016-08-06 04:58:29 +08:00
; NO-USE-MOVT-O0-LABEL: {{_?}}foo1
; NO-USE-MOVT-O0: ldr [[R0:r[0-9]+]], [[L0:.*]]
; NO-USE-MOVT-O0: [[L0]]:
; NO-USE-MOVT-O0: .long 2296237089
[ARM] Define a subtarget feature that is used to avoid using movt/movw pairs for 32-bit immediates. This change is needed to avoid emitting movt/movw pairs when doing LTO and do so on a per-function basis. Out-of-tree projects currently using cl::opt option -arm-use-movt=0 or false to avoid emitting movt/movw pairs should make changes to add subtarget feature "+no-movt" (see the changes made to clang in r242368). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D11026 llvm-svn: 242369
2015-07-16 08:58:23 +08:00
define i32 @foo1(i32 %a) {
%1 = xor i32 -1998730207, %a
ret i32 %1
}
[ARM] Constant Materialize: imms with specific value can be encoded into mov.w Summary: Thumb2 supports encoding immediates with specific patterns into mov.w by splatting the low 8 bits into other bytes. I'm resubmitting this patch. The test case in the original commit r277610 does not specify triple, so builds with differnt default triple will have different output. This patch fixed trile as thumb-darwin-apple. Reviewers: john.brawn, jmolloy, bruno Subscribers: jmolloy, aemerson, rengolin, samparker, llvm-commits Differential Revision: https://reviews.llvm.org/D23090 llvm-svn: 277865
2016-08-06 04:58:29 +08:00
; NO-OPTION-LABEL: {{_?}}foo2
; NO-OPTION: mov.w [[R0:r[0-9]+]], #-536813568
; USE-MOVT-LABEL: {{_?}}foo2
; USE-MOVT: mov.w [[R0:r[0-9]+]], #-536813568
; NO-USE-MOVT-LABEL: {{_?}}foo2
; NO-USE-MOVT: mov.w [[R0:r[0-9]+]], #-536813568
; NO-OPTION-O0-LABEL: {{_?}}foo2
; NO-OPTION-O0: movw [[R0:r[0-9]+]], #57344
; NO-OPTION-O0: movt [[R0]], #57344
; USE-MOVT-O0-LABEL: {{_?}}foo2
; USE-MOVT-O0: movw [[R0:r[0-9]+]], #57344
; USE-MOVTT-O0: movt [[R0]], #57344
; NO-USE-MOVT-O0-LABEL: {{_?}}foo2
; NO-USE-MOVT-O0: ldr [[R0:r[0-9]+]], [[L0:.*]]
; NO-USE-MOVT-O0: [[L0]]:
; NO-USE-MOVT-O0: .long 3758153728 @ 0xe000e000
define i32 @foo2() {
%1 = load i32, i32* inttoptr (i32 -536813568 to i32*) ; load from 0xe000e000
ret i32 %1
}
[ARM] Define a subtarget feature that is used to avoid using movt/movw pairs for 32-bit immediates. This change is needed to avoid emitting movt/movw pairs when doing LTO and do so on a per-function basis. Out-of-tree projects currently using cl::opt option -arm-use-movt=0 or false to avoid emitting movt/movw pairs should make changes to add subtarget feature "+no-movt" (see the changes made to clang in r242368). rdar://problem/21529937 Differential Revision: http://reviews.llvm.org/D11026 llvm-svn: 242369
2015-07-16 08:58:23 +08:00
attributes #0 = { "target-features"="+no-movt" }