The Nest
Explore
0
Compiler projects using llvm 
# RUN: llc -mtriple=armv7-- -run-pass=prologepilog -run-pass=machine-outliner \
# RUN: -verify-machineinstrs %s -o - | FileCheck %s

--- |
  define void @CheckAddrMode_i12() { ret void }
  define void @CheckAddrMode3() { ret void }
  define void @CheckAddrMode5() { ret void }
  define void @CheckAddrMode5FP16() { ret void }
  define void @foo() { ret void }

...
---

name:           CheckAddrMode_i12
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $r0
    ; CHECK-LABEL: name:           CheckAddrMode_i12
    ; CHECK: $r1 = MOVr killed $r0, 14 /* CC::al */, $noreg, $noreg
    ; CHECK-NEXT: BL @OUTLINED_FUNCTION_[[I12:[0-9]+]]
    ; CHECK-NEXT: $r6 = LDRi12 $sp, 4088, 14 /* CC::al */, $noreg
    $r1 = MOVr killed $r0, 14, $noreg, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $r1 = LDRi12 $sp, 0, 14, $noreg
    $r2 = LDRi12 $sp, 8, 14, $noreg
    $r5 = LDRi12 $sp, 4086, 14, $noreg
    $r6 = LDRi12 $sp, 4088, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $r1 = LDRi12 $sp, 0, 14, $noreg
    $r2 = LDRi12 $sp, 8, 14, $noreg
    $r5 = LDRi12 $sp, 4086, 14, $noreg
    $r6 = LDRi12 $sp, 4088, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $r1 = LDRi12 $sp, 0, 14, $noreg
    $r2 = LDRi12 $sp, 8, 14, $noreg
    $r5 = LDRi12 $sp, 4086, 14, $noreg
    $r6 = LDRi12 $sp, 4088, 14, $noreg
    BX_RET 14, $noreg
...
---

name:           CheckAddrMode3
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $r1
    ; CHECK-LABEL: name:           CheckAddrMode3
    ; CHECK: $r0 = MOVr killed $r1, 14 /* CC::al */, $noreg, $noreg
    ; CHECK-NEXT: BL @OUTLINED_FUNCTION_[[I3:[0-9]+]]
    ; CHECK-NEXT: $r6 = LDRSH $sp, $noreg, 248, 14 /* CC::al */, $noreg
    $r0 = MOVr killed $r1, 14, $noreg, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $r1 = LDRSH $sp, $noreg, 0, 14, $noreg
    $r2 = LDRSH $sp, $noreg, 8, 14, $noreg
    $r5 = LDRSH $sp, $noreg, 247, 14, $noreg
    $r6 = LDRSH $sp, $noreg, 248, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $r1 = LDRSH $sp, $noreg, 0, 14, $noreg
    $r2 = LDRSH $sp, $noreg, 8, 14, $noreg
    $r5 = LDRSH $sp, $noreg, 247, 14, $noreg
    $r6 = LDRSH $sp, $noreg, 248, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $r1 = LDRSH $sp, $noreg, 0, 14, $noreg
    $r2 = LDRSH $sp, $noreg, 8, 14, $noreg
    $r5 = LDRSH $sp, $noreg, 247, 14, $noreg
    $r6 = LDRSH $sp, $noreg, 248, 14, $noreg
    BX_RET 14, $noreg
...
---

name:           CheckAddrMode5
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $r2
    ; CHECK-LABEL: name:           CheckAddrMode5
    ; CHECK: $r0 = MOVr killed $r2, 14 /* CC::al */, $noreg, $noreg
    ; CHECK-NEXT: BL @OUTLINED_FUNCTION_[[I5:[0-9]+]]
    ; CHECK-NEXT: $d5 = VLDRD $sp, 254, 14 /* CC::al */, $noreg
    $r0 = MOVr killed $r2, 14, $noreg, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $d0 = VLDRD $sp, 0, 14, $noreg
    $d1 = VLDRD $sp, 8, 14, $noreg
    $d4 = VLDRD $sp, 253, 14, $noreg
    $d5 = VLDRD $sp, 254, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $d0 = VLDRD $sp, 0, 14, $noreg
    $d1 = VLDRD $sp, 8, 14, $noreg
    $d4 = VLDRD $sp, 253, 14, $noreg
    $d5 = VLDRD $sp, 254, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $d0 = VLDRD $sp, 0, 14, $noreg
    $d1 = VLDRD $sp, 8, 14, $noreg
    $d4 = VLDRD $sp, 253, 14, $noreg
    $d5 = VLDRD $sp, 254, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $d0 = VLDRD $sp, 0, 14, $noreg
    $d1 = VLDRD $sp, 8, 14, $noreg
    $d4 = VLDRD $sp, 253, 14, $noreg
    $d5 = VLDRD $sp, 254, 14, $noreg
    BX_RET 14, $noreg
...
---

name:           CheckAddrMode5FP16
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $r3
    ; CHECK-LABEL: name:           CheckAddrMode5FP16
    ; CHECK: $r0 = MOVr killed $r3, 14 /* CC::al */, $noreg, $noreg
    ; CHECK-NEXT: BL @OUTLINED_FUNCTION_[[I5FP16:[0-9]+]]
    ; CHECK-NEXT: $s6 = VLDRH $sp, 252, 14, $noreg
    $r0 = MOVr killed $r3, 14, $noreg, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $s1 = VLDRH $sp, 0, 14, $noreg
    $s2 = VLDRH $sp, 8, 14, $noreg
    $s5 = VLDRH $sp, 240, 14, $noreg
    $s6 = VLDRH $sp, 252, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $s1 = VLDRH $sp, 0, 14, $noreg
    $s2 = VLDRH $sp, 8, 14, $noreg
    $s5 = VLDRH $sp, 240, 14, $noreg
    $s6 = VLDRH $sp, 252, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $s1 = VLDRH $sp, 0, 14, $noreg
    $s2 = VLDRH $sp, 8, 14, $noreg
    $s5 = VLDRH $sp, 240, 14, $noreg
    $s6 = VLDRH $sp, 252, 14, $noreg
    BL @foo, implicit-def dead $lr, implicit $sp
    $s1 = VLDRH $sp, 0, 14, $noreg
    $s2 = VLDRH $sp, 8, 14, $noreg
    $s5 = VLDRH $sp, 240, 14, $noreg
    $s6 = VLDRH $sp, 252, 14, $noreg
    BX_RET 14, $noreg
...
---

name:           foo
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $lr

    BX_RET 14, $noreg

    ;CHECK: name:           OUTLINED_FUNCTION_[[I5]]
    ;CHECK: early-clobber $sp = frame-setup STR_PRE_IMM killed $lr, $sp, -8, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
    ;CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -8
    ;CHECK-NEXT: BL @foo, implicit-def dead $lr, implicit $sp
    ;CHECK-NEXT: $d0 = VLDRD $sp, 2, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: $d1 = VLDRD $sp, 10, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: $d4 = VLDRD $sp, 255, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: $lr, $sp = frame-destroy LDR_POST_IMM $sp, $noreg, 8, 14 /* CC::al */, $noreg

    ;CHECK: name:           OUTLINED_FUNCTION_[[I5FP16]]
    ;CHECK: early-clobber $sp = frame-setup STR_PRE_IMM killed $lr, $sp, -8, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
    ;CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -8
    ;CHECK-NEXT: BL @foo, implicit-def dead $lr, implicit $sp
    ;CHECK-NEXT: $s1 = VLDRH $sp, 4, 14, $noreg
    ;CHECK-NEXT: $s2 = VLDRH $sp, 12, 14, $noreg
    ;CHECK-NEXT: $s5 = VLDRH $sp, 244, 14, $noreg
    ;CHECK-NEXT: $lr, $sp = frame-destroy LDR_POST_IMM $sp, $noreg, 8, 14 /* CC::al */, $noreg

    ;CHECK: name:           OUTLINED_FUNCTION_[[I12]]
    ;CHECK: early-clobber $sp = frame-setup STR_PRE_IMM killed $lr, $sp, -8, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
    ;CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -8
    ;CHECK-NEXT: BL @foo, implicit-def dead $lr, implicit $sp
    ;CHECK-NEXT: $r1 = LDRi12 $sp, 8, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: $r2 = LDRi12 $sp, 16, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: $r5 = LDRi12 $sp, 4094, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: $lr, $sp = frame-destroy LDR_POST_IMM $sp, $noreg, 8, 14 /* CC::al */, $noreg

    ;CHECK: name:           OUTLINED_FUNCTION_[[I3]]
    ;CHECK: early-clobber $sp = frame-setup STR_PRE_IMM killed $lr, $sp, -8, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
    ;CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -8
    ;CHECK-NEXT: BL @foo, implicit-def dead $lr, implicit $sp
    ;CHECK-NEXT: $r1 = LDRSH $sp, $noreg, 8, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: $r2 = LDRSH $sp, $noreg, 16, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: $r5 = LDRSH $sp, $noreg, 255, 14 /* CC::al */, $noreg
    ;CHECK-NEXT: $lr, $sp = frame-destroy LDR_POST_IMM $sp, $noreg, 8, 14 /* CC::al */, $noreg