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llvm-mirror/test/CodeGen/ARM/machine-outliner-thunk.ll

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[ARM][MachineOutliner] Add Machine Outliner support for ARM. Enables Machine Outlining for ARM and Thumb2 modes. This is the first patch of the series which adds all the basic logic for the support, and only handles tail-calls and thunks. The outliner can be turned on by using clang -moutline option or -mllvm -enable-machine-outliner one (like AArch64). Differential Revision: https://reviews.llvm.org/D76066
2020-05-15 08:44:23 +02:00
; RUN: llc -enable-machine-outliner -verify-machineinstrs -mtriple=armv7-- \
; RUN: -stop-after=machine-outliner < %s | FileCheck %s --check-prefix=ARM
; RUN: llc -enable-machine-outliner -verify-machineinstrs -mtriple=thumbv7-- \
; RUN: -stop-after=machine-outliner < %s | FileCheck %s --check-prefix=THUMB
; RUN: llc -enable-machine-outliner -verify-machineinstrs \
; RUN: -mtriple=thumbv7-apple-darwin -stop-after=machine-outliner < %s \
; RUN: | FileCheck %s --check-prefix=MACHO
; RUN: llc -enable-machine-outliner -verify-machineinstrs -mtriple=thumbv5-- \
; RUN: --stop-after=machine-outliner < %s | FileCheck %s --check-prefix=THUMB1
[ARM] Enable outliner at -Oz for M-class Enable default outlining when the function has the minsize attribute and we're targeting an m-class core. Differential Revision: https://reviews.llvm.org/D82951
2020-08-27 08:14:33 +02:00
; RUN: llc -verify-machineinstrs -mtriple=thumbv8m.main \
; RUN: --stop-after=machine-outliner < %s | FileCheck %s --check-prefix=THUMB
[ARM][MachineOutliner] Add Machine Outliner support for ARM. Enables Machine Outlining for ARM and Thumb2 modes. This is the first patch of the series which adds all the basic logic for the support, and only handles tail-calls and thunks. The outliner can be turned on by using clang -moutline option or -mllvm -enable-machine-outliner one (like AArch64). Differential Revision: https://reviews.llvm.org/D76066
2020-05-15 08:44:23 +02:00
declare i32 @thunk_called_fn(i32, i32, i32, i32)
[ARM] Enable outliner at -Oz for M-class Enable default outlining when the function has the minsize attribute and we're targeting an m-class core. Differential Revision: https://reviews.llvm.org/D82951
2020-08-27 08:14:33 +02:00
define i32 @a() #0 {
[ARM][MachineOutliner] Add Machine Outliner support for ARM. Enables Machine Outlining for ARM and Thumb2 modes. This is the first patch of the series which adds all the basic logic for the support, and only handles tail-calls and thunks. The outliner can be turned on by using clang -moutline option or -mllvm -enable-machine-outliner one (like AArch64). Differential Revision: https://reviews.llvm.org/D76066
2020-05-15 08:44:23 +02:00
; ARM-LABEL: name: a
; ARM: bb.0.entry:
; ARM-NEXT: liveins: $r11, $lr
; ARM: $sp = frame-setup STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r11, killed $lr
; ARM-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
; ARM-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
; ARM-NEXT: frame-setup CFI_INSTRUCTION offset $r11, -8
; ARM-NEXT: BL @OUTLINED_FUNCTION_0{{.*}}
; ARM-NEXT: renamable $r0 = ADDri killed renamable $r0, 8, 14 /* CC::al */, $noreg, $noreg
; ARM-NEXT: $sp = frame-destroy LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r11, def $pc, implicit killed $r0
; THUMB-LABEL: name: a
; THUMB: bb.0.entry:
; THUMB-NEXT: liveins: $r7, $lr
; THUMB: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr
; THUMB-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
; THUMB-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
; THUMB-NEXT: frame-setup CFI_INSTRUCTION offset $r7, -8
; THUMB-NEXT: tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_0{{.*}}
; THUMB-NEXT: renamable $r0, dead $cpsr = tADDi8 killed renamable $r0, 8, 14 /* CC::al */, $noreg
; THUMB-NEXT: tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
; MACHO-LABEL: name: a
; MACHO: bb.0.entry:
; MACHO-NEXT: liveins: $lr
; MACHO: early-clobber $sp = frame-setup t2STR_PRE killed $lr, $sp, -4, 14 /* CC::al */, $noreg
; MACHO-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 4
; MACHO-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
; MACHO-NEXT: tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_0{{.*}}
; MACHO-NEXT: renamable $r0, dead $cpsr = tADDi8 killed renamable $r0, 8, 14 /* CC::al */, $noreg
; MACHO-NEXT: $lr, $sp = frame-destroy t2LDR_POST $sp, 4, 14 /* CC::al */, $noreg
; MACHO-NEXT: tBX_RET 14 /* CC::al */, $noreg, implicit killed $r0
; THUMB1-NOT: OUTLINED_FUNCTION_0
entry:
%call = tail call i32 @thunk_called_fn(i32 1, i32 2, i32 3, i32 4)
%cx = add i32 %call, 8
ret i32 %cx
}
[ARM] Enable outliner at -Oz for M-class Enable default outlining when the function has the minsize attribute and we're targeting an m-class core. Differential Revision: https://reviews.llvm.org/D82951
2020-08-27 08:14:33 +02:00
define i32 @b() #0 {
[ARM][MachineOutliner] Add Machine Outliner support for ARM. Enables Machine Outlining for ARM and Thumb2 modes. This is the first patch of the series which adds all the basic logic for the support, and only handles tail-calls and thunks. The outliner can be turned on by using clang -moutline option or -mllvm -enable-machine-outliner one (like AArch64). Differential Revision: https://reviews.llvm.org/D76066
2020-05-15 08:44:23 +02:00
; ARM-LABEL: name: b
; ARM: bb.0.entry:
; ARM-NEXT: liveins: $r11, $lr
; ARM: $sp = frame-setup STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r11, killed $lr
; ARM-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
; ARM-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
; ARM-NEXT: frame-setup CFI_INSTRUCTION offset $r11, -8
; ARM-NEXT: BL @OUTLINED_FUNCTION_0{{.*}}
; ARM-NEXT: renamable $r0 = ADDri killed renamable $r0, 88, 14 /* CC::al */, $noreg, $noreg
; ARM-NEXT: $sp = frame-destroy LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r11, def $pc, implicit killed $r0
; THUMB-LABEL: name: b
; THUMB: bb.0.entry:
; THUMB-NEXT: liveins: $r7, $lr
; THUMB: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr
; THUMB-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
; THUMB-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
; THUMB-NEXT: frame-setup CFI_INSTRUCTION offset $r7, -8
; THUMB-NEXT: tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_0{{.*}}
; THUMB-NEXT: renamable $r0, dead $cpsr = tADDi8 killed renamable $r0, 88, 14 /* CC::al */, $noreg
; THUMB-NEXT: tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
; MACHO-LABEL: name: b
; MACHO: bb.0.entry:
; MACHO-NEXT: liveins: $lr
; MACHO: early-clobber $sp = frame-setup t2STR_PRE killed $lr, $sp, -4, 14 /* CC::al */, $noreg
; MACHO-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 4
; MACHO-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
; MACHO-NEXT: tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_0{{.*}}
; MACHO-NEXT: renamable $r0, dead $cpsr = tADDi8 killed renamable $r0, 88, 14 /* CC::al */, $noreg
; MACHO-NEXT: $lr, $sp = frame-destroy t2LDR_POST $sp, 4, 14 /* CC::al */, $noreg
; MACHO-NEXT: tBX_RET 14 /* CC::al */, $noreg, implicit killed $r0
entry:
%call = tail call i32 @thunk_called_fn(i32 1, i32 2, i32 3, i32 4)
%cx = add i32 %call, 88
ret i32 %cx
}
; ARM-LABEL: name: OUTLINED_FUNCTION_0
; ARM: bb.0:
; ARM-NEXT: liveins: $r10, $r9, $r8, $r7, $r6, $r5, $r4, $d15, $d14, $d13, $d12, $d11, $d10, $d9, $d8
; ARM: $r0 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; ARM-NEXT: $r1 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; ARM-NEXT: $r2 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; ARM-NEXT: $r3 = MOVi 4, 14 /* CC::al */, $noreg, $noreg
; ARM-NEXT: TAILJMPd @thunk_called_fn, implicit $sp
; THUMB-LABEL: name: OUTLINED_FUNCTION_0
; THUMB: bb.0:
; THUMB-NEXT: liveins: $r11, $r10, $r9, $r8, $r6, $r5, $r4, $d15, $d14, $d13, $d12, $d11, $d10, $d9, $d8
; THUMB: $r0, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
; THUMB-NEXT: $r1, dead $cpsr = tMOVi8 2, 14 /* CC::al */, $noreg
; THUMB-NEXT: $r2, dead $cpsr = tMOVi8 3, 14 /* CC::al */, $noreg
; THUMB-NEXT: $r3, dead $cpsr = tMOVi8 4, 14 /* CC::al */, $noreg
; THUMB-NEXT: tTAILJMPdND @thunk_called_fn, 14 /* CC::al */, $noreg, implicit $sp
; MACHO-LABEL: name: OUTLINED_FUNCTION_0
; MACHO: bb.0:
; MACHO-NEXT: liveins: $r7, $r6, $r5, $r4, $r11, $r10, $r8, $d15, $d14, $d13, $d12, $d11, $d10, $d9, $d8
; MACHO: $r0, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
; MACHO-NEXT: $r1, dead $cpsr = tMOVi8 2, 14 /* CC::al */, $noreg
; MACHO-NEXT: $r2, dead $cpsr = tMOVi8 3, 14 /* CC::al */, $noreg
; MACHO-NEXT: $r3, dead $cpsr = tMOVi8 4, 14 /* CC::al */, $noreg
; MACHO-NEXT: tTAILJMPd @thunk_called_fn, 14 /* CC::al */, $noreg, implicit $sp
[ARM] Enable outliner at -Oz for M-class Enable default outlining when the function has the minsize attribute and we're targeting an m-class core. Differential Revision: https://reviews.llvm.org/D82951
2020-08-27 08:14:33 +02:00
attributes #0 = { minsize optsize }
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