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deeb3667fb
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
46 lines
1.6 KiB
LLVM
46 lines
1.6 KiB
LLVM
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - | FileCheck -check-prefix=NO-OPTION %s
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; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -mattr=-no-movt | FileCheck -check-prefix=USE-MOVT %s
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; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -mattr=+no-movt | FileCheck -check-prefix=NO-USE-MOVT %s
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; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 | FileCheck -check-prefix=NO-OPTION %s
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; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 -mattr=-no-movt | FileCheck -check-prefix=USE-MOVT %s
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; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 -mattr=+no-movt | FileCheck -check-prefix=NO-USE-MOVT %s
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; NO-OPTION-LABEL: {{_?}}foo0
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; NO-OPTION: ldr [[R0:r[0-9]+]], [[L0:.*]]
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; NO-OPTION: [[L0]]:
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; NO-OPTION: .long 2296237089
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; USE-MOVT-LABEL: {{_?}}foo0
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; USE-MOVT: movw [[R0:r[0-9]+]], #52257
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; USE-MOVT: movt [[R0]], #35037
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; NO-USE-MOVT-LABEL: {{_?}}foo0
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; NO-USE-MOVT: ldr [[R0:r[0-9]+]], [[L0:.*]]
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; NO-USE-MOVT: [[L0]]:
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; NO-USE-MOVT: .long 2296237089
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define i32 @foo0(i32 %a) #0 {
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%1 = xor i32 -1998730207, %a
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ret i32 %1
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}
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; NO-OPTION-LABEL: {{_?}}foo1
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; NO-OPTION: movw [[R0:r[0-9]+]], #52257
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; NO-OPTION: movt [[R0]], #35037
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; USE-MOVT-LABEL: {{_?}}foo1
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; USE-MOVT: movw [[R0:r[0-9]+]], #52257
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; USE-MOVT: movt [[R0]], #35037
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; NO-USE-MOVT-LABEL: {{_?}}foo1
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; NO-USE-MOVT: ldr [[R0:r[0-9]+]], [[L0:.*]]
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; NO-USE-MOVT: [[L0]]:
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; NO-USE-MOVT: .long 2296237089
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define i32 @foo1(i32 %a) {
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%1 = xor i32 -1998730207, %a
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ret i32 %1
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}
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attributes #0 = { "target-features"="+no-movt" }
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