[CodeGen] Autogen tests as prerequisite for D42600

Autogenerating tests as suggested in D42600

Author: sushgokh

llvm/test/CodeGen/AArch64/ragreedy-csr.ll

@@ -1,24 +1,10 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
 ; RUN: llc < %s -mtriple=arm64-apple-ios7.0 -regalloc=greedy -regalloc-csr-first-time-cost=15 | FileCheck %s
 
 ; This testing case is reduced from 197.parser prune_match function.
 ; We make sure that we do not use callee-saved registers (x19 to x25).
 ; rdar://16162005
 
-; CHECK-LABEL: prune_match:
-; CHECK: entry
-; CHECK: {{str x30|stp x29, x30}}, [sp
-; CHECK-NOT: stp x25,
-; CHECK-NOT: stp x23, x24
-; CHECK-NOT: stp x21, x22
-; CHECK-NOT: stp x19, x20
-; CHECK: if.end
-; CHECK: return
-; CHECK: {{ldr x30|ldp x29, x30}}, [sp
-; CHECK-NOT: ldp x19, x20
-; CHECK-NOT: ldp x21, x22
-; CHECK-NOT: ldp x23, x24
-; CHECK-NOT: ldp x25,
-
 %struct.List_o_links_struct = type { i32, i32, i32, ptr }
 %struct.Connector_struct = type { i16, i16, i8, i8, ptr, ptr }
 %struct._RuneLocale = type { [8 x i8], [32 x i8], ptr, ptr, i32, [256 x i32], [256 x i32], [256 x i32], %struct._RuneRange, %struct._RuneRange, %struct._RuneRange, ptr, i32, i32, ptr }
@@ -33,6 +19,249 @@
 @_DefaultRuneLocale = external global %struct._RuneLocale
 declare i32 @__maskrune(i32, i64) #7
 define fastcc i32 @prune_match(ptr nocapture readonly %a, ptr nocapture readonly %b) #9 {
+; CHECK-LABEL: prune_match:
+; CHECK:       ; %bb.0: ; %entry
+; CHECK-NEXT:    sub sp, sp, #64
+; CHECK-NEXT:    .cfi_def_cfa_offset 64
+; CHECK-NEXT:    stp x29, x30, [sp, #48] ; 16-byte Folded Spill
+; CHECK-NEXT:    .cfi_offset w30, -8
+; CHECK-NEXT:    .cfi_offset w29, -16
+; CHECK-NEXT:    ldrh w8, [x0]
+; CHECK-NEXT:    ldrh w9, [x1]
+; CHECK-NEXT:    cmp w8, w9
+; CHECK-NEXT:    b.ne LBB0_42
+; CHECK-NEXT:  ; %bb.1: ; %if.end
+; CHECK-NEXT:  Lloh0:
+; CHECK-NEXT:    adrp x14, __DefaultRuneLocale@GOTPAGE
+; CHECK-NEXT:    mov x9, xzr
+; CHECK-NEXT:    ldrb w12, [x0, #4]
+; CHECK-NEXT:    ldrb w13, [x1, #4]
+; CHECK-NEXT:    ldr x10, [x0, #16]
+; CHECK-NEXT:    ldr x11, [x1, #16]
+; CHECK-NEXT:  Lloh1:
+; CHECK-NEXT:    ldr x14, [x14, __DefaultRuneLocale@GOTPAGEOFF]
+; CHECK-NEXT:    ldrsb x8, [x10, x9]
+; CHECK-NEXT:    tbz x8, #63, LBB0_3
+; CHECK-NEXT:  LBB0_2: ; %cond.false.i.i
+; CHECK-NEXT:    stp x9, x0, [sp, #32] ; 16-byte Folded Spill
+; CHECK-NEXT:    mov w0, w8
+; CHECK-NEXT:    mov w1, #32768 ; =0x8000
+; CHECK-NEXT:    str x10, [sp, #8] ; 8-byte Folded Spill
+; CHECK-NEXT:    str x11, [sp, #24] ; 8-byte Folded Spill
+; CHECK-NEXT:    str w12, [sp, #4] ; 4-byte Folded Spill
+; CHECK-NEXT:    str w13, [sp, #20] ; 4-byte Folded Spill
+; CHECK-NEXT:    bl ___maskrune
+; CHECK-NEXT:  Lloh2:
+; CHECK-NEXT:    adrp x14, __DefaultRuneLocale@GOTPAGE
+; CHECK-NEXT:    mov w8, w0
+; CHECK-NEXT:  Lloh3:
+; CHECK-NEXT:    ldr x14, [x14, __DefaultRuneLocale@GOTPAGEOFF]
+; CHECK-NEXT:    ldp x11, x9, [sp, #24] ; 16-byte Folded Reload
+; CHECK-NEXT:    ldr w13, [sp, #20] ; 4-byte Folded Reload
+; CHECK-NEXT:    ldr w12, [sp, #4] ; 4-byte Folded Reload
+; CHECK-NEXT:    ldr x10, [sp, #8] ; 8-byte Folded Reload
+; CHECK-NEXT:    ldr x0, [sp, #40] ; 8-byte Folded Reload
+; CHECK-NEXT:    cbz w8, LBB0_4
+; CHECK-NEXT:    b LBB0_6
+; CHECK-NEXT:  LBB0_3: ; %cond.true.i.i
+; CHECK-NEXT:    add x8, x14, x8, lsl #2
+; CHECK-NEXT:    ldr w8, [x8, #60]
+; CHECK-NEXT:    and w8, w8, #0x8000
+; CHECK-NEXT:    cbnz w8, LBB0_6
+; CHECK-NEXT:  LBB0_4: ; %lor.rhs
+; CHECK-NEXT:    ldrsb x8, [x11, x9]
+; CHECK-NEXT:    tbnz x8, #63, LBB0_8
+; CHECK-NEXT:  ; %bb.5: ; %cond.true.i.i217
+; CHECK-NEXT:    add x8, x14, x8, lsl #2
+; CHECK-NEXT:    ldr w8, [x8, #60]
+; CHECK-NEXT:    and w8, w8, #0x8000
+; CHECK-NEXT:    cbz w8, LBB0_9
+; CHECK-NEXT:  LBB0_6: ; %while.body
+; CHECK-NEXT:    ldrb w8, [x10, x9]
+; CHECK-NEXT:    ldrb w15, [x11, x9]
+; CHECK-NEXT:    cmp w8, w15
+; CHECK-NEXT:    b.ne LBB0_42
+; CHECK-NEXT:  ; %bb.7: ; %if.end17
+; CHECK-NEXT:    add x9, x9, #1
+; CHECK-NEXT:    ldrsb x8, [x10, x9]
+; CHECK-NEXT:    tbz x8, #63, LBB0_3
+; CHECK-NEXT:    b LBB0_2
+; CHECK-NEXT:  LBB0_8: ; %cond.false.i.i219
+; CHECK-NEXT:    stp x9, x0, [sp, #32] ; 16-byte Folded Spill
+; CHECK-NEXT:    mov w0, w8
+; CHECK-NEXT:    mov w1, #32768 ; =0x8000
+; CHECK-NEXT:    str x10, [sp, #8] ; 8-byte Folded Spill
+; CHECK-NEXT:    str x11, [sp, #24] ; 8-byte Folded Spill
+; CHECK-NEXT:    str w12, [sp, #4] ; 4-byte Folded Spill
+; CHECK-NEXT:    str w13, [sp, #20] ; 4-byte Folded Spill
+; CHECK-NEXT:    bl ___maskrune
+; CHECK-NEXT:  Lloh4:
+; CHECK-NEXT:    adrp x14, __DefaultRuneLocale@GOTPAGE
+; CHECK-NEXT:    mov w8, w0
+; CHECK-NEXT:  Lloh5:
+; CHECK-NEXT:    ldr x14, [x14, __DefaultRuneLocale@GOTPAGEOFF]
+; CHECK-NEXT:    ldp x11, x9, [sp, #24] ; 16-byte Folded Reload
+; CHECK-NEXT:    ldr w13, [sp, #20] ; 4-byte Folded Reload
+; CHECK-NEXT:    ldr w12, [sp, #4] ; 4-byte Folded Reload
+; CHECK-NEXT:    ldr x10, [sp, #8] ; 8-byte Folded Reload
+; CHECK-NEXT:    ldr x0, [sp, #40] ; 8-byte Folded Reload
+; CHECK-NEXT:    cbnz w8, LBB0_6
+; CHECK-NEXT:  LBB0_9: ; %while.end
+; CHECK-NEXT:    orr w8, w13, w12
+; CHECK-NEXT:    cbnz w8, LBB0_24
+; CHECK-NEXT:  ; %bb.10: ; %if.then23
+; CHECK-NEXT:    ldr x12, [x0, #16]
+; CHECK-NEXT:    ldrb w8, [x10, x9]
+; CHECK-NEXT:    ldrb w13, [x12]
+; CHECK-NEXT:    cmp w13, #83
+; CHECK-NEXT:    b.eq LBB0_19
+; CHECK-NEXT:  LBB0_11: ; %while.cond59.preheader
+; CHECK-NEXT:    cbz w8, LBB0_23
+; CHECK-NEXT:  LBB0_12: ; %land.rhs.preheader
+; CHECK-NEXT:    add x10, x10, x9
+; CHECK-NEXT:    add x9, x11, x9
+; CHECK-NEXT:    add x10, x10, #1
+; CHECK-NEXT:  LBB0_13: ; %land.rhs
+; CHECK-NEXT:    ; =>This Inner Loop Header: Depth=1
+; CHECK-NEXT:    ldrb w11, [x9], #1
+; CHECK-NEXT:    cbz w11, LBB0_23
+; CHECK-NEXT:  ; %bb.14: ; %while.body66
+; CHECK-NEXT:    ; in Loop: Header=BB0_13 Depth=1
+; CHECK-NEXT:    cmp w8, #42
+; CHECK-NEXT:    b.eq LBB0_18
+; CHECK-NEXT:  ; %bb.15: ; %while.body66
+; CHECK-NEXT:    ; in Loop: Header=BB0_13 Depth=1
+; CHECK-NEXT:    cmp w11, #42
+; CHECK-NEXT:    b.eq LBB0_18
+; CHECK-NEXT:  ; %bb.16: ; %lor.lhs.false74
+; CHECK-NEXT:    ; in Loop: Header=BB0_13 Depth=1
+; CHECK-NEXT:    mov w0, wzr
+; CHECK-NEXT:    cmp w8, w11
+; CHECK-NEXT:    b.ne LBB0_43
+; CHECK-NEXT:  ; %bb.17: ; %lor.lhs.false74
+; CHECK-NEXT:    ; in Loop: Header=BB0_13 Depth=1
+; CHECK-NEXT:    cmp w8, #94
+; CHECK-NEXT:    b.eq LBB0_43
+; CHECK-NEXT:  LBB0_18: ; %if.then83
+; CHECK-NEXT:    ; in Loop: Header=BB0_13 Depth=1
+; CHECK-NEXT:    ldrb w8, [x10], #1
+; CHECK-NEXT:    mov w0, #1 ; =0x1
+; CHECK-NEXT:    cbnz w8, LBB0_13
+; CHECK-NEXT:    b LBB0_43
+; CHECK-NEXT:  LBB0_19: ; %land.lhs.true28
+; CHECK-NEXT:    cbz w8, LBB0_23
+; CHECK-NEXT:  ; %bb.20: ; %land.lhs.true28
+; CHECK-NEXT:    cmp w8, #112
+; CHECK-NEXT:    b.ne LBB0_12
+; CHECK-NEXT:  ; %bb.21: ; %land.lhs.true35
+; CHECK-NEXT:    ldrb w13, [x11, x9]
+; CHECK-NEXT:    cmp w13, #112
+; CHECK-NEXT:    b.ne LBB0_12
+; CHECK-NEXT:  ; %bb.22: ; %land.lhs.true43
+; CHECK-NEXT:    sub x12, x10, x12
+; CHECK-NEXT:    add x12, x12, x9
+; CHECK-NEXT:    cmp x12, #1
+; CHECK-NEXT:    b.ne LBB0_44
+; CHECK-NEXT:  LBB0_23:
+; CHECK-NEXT:    mov w0, #1 ; =0x1
+; CHECK-NEXT:    b LBB0_43
+; CHECK-NEXT:  LBB0_24: ; %if.else88
+; CHECK-NEXT:    cmp w12, #1
+; CHECK-NEXT:    b.ne LBB0_33
+; CHECK-NEXT:  ; %bb.25: ; %if.else88
+; CHECK-NEXT:    cmp w13, #2
+; CHECK-NEXT:    b.ne LBB0_33
+; CHECK-NEXT:  ; %bb.26: ; %while.cond95.preheader
+; CHECK-NEXT:    ldrb w12, [x10, x9]
+; CHECK-NEXT:    cbz w12, LBB0_23
+; CHECK-NEXT:  ; %bb.27: ; %land.rhs99.preheader
+; CHECK-NEXT:    mov x8, xzr
+; CHECK-NEXT:    mov w0, #1 ; =0x1
+; CHECK-NEXT:    b LBB0_29
+; CHECK-NEXT:  LBB0_28: ; %if.then117
+; CHECK-NEXT:    ; in Loop: Header=BB0_29 Depth=1
+; CHECK-NEXT:    add x12, x10, x8
+; CHECK-NEXT:    add x8, x8, #1
+; CHECK-NEXT:    add x12, x12, x9
+; CHECK-NEXT:    ldrb w12, [x12, #1]
+; CHECK-NEXT:    cbz w12, LBB0_43
+; CHECK-NEXT:  LBB0_29: ; %land.rhs99
+; CHECK-NEXT:    ; =>This Inner Loop Header: Depth=1
+; CHECK-NEXT:    add x13, x11, x8
+; CHECK-NEXT:    ldrb w13, [x13, x9]
+; CHECK-NEXT:    cbz w13, LBB0_23
+; CHECK-NEXT:  ; %bb.30: ; %while.body104
+; CHECK-NEXT:    ; in Loop: Header=BB0_29 Depth=1
+; CHECK-NEXT:    cmp w12, w13
+; CHECK-NEXT:    b.eq LBB0_28
+; CHECK-NEXT:  ; %bb.31: ; %while.body104
+; CHECK-NEXT:    ; in Loop: Header=BB0_29 Depth=1
+; CHECK-NEXT:    cmp w12, #42
+; CHECK-NEXT:    b.eq LBB0_28
+; CHECK-NEXT:  ; %bb.32: ; %while.body104
+; CHECK-NEXT:    ; in Loop: Header=BB0_29 Depth=1
+; CHECK-NEXT:    cmp w13, #94
+; CHECK-NEXT:    b.eq LBB0_28
+; CHECK-NEXT:    b LBB0_42
+; CHECK-NEXT:  LBB0_33: ; %if.else123
+; CHECK-NEXT:    mov w0, wzr
+; CHECK-NEXT:    cmp w13, #1
+; CHECK-NEXT:    b.ne LBB0_43
+; CHECK-NEXT:  ; %bb.34: ; %if.else123
+; CHECK-NEXT:    cmp w12, #2
+; CHECK-NEXT:    b.ne LBB0_43
+; CHECK-NEXT:  ; %bb.35: ; %while.cond130.preheader
+; CHECK-NEXT:    ldrb w8, [x10, x9]
+; CHECK-NEXT:    cbz w8, LBB0_23
+; CHECK-NEXT:  ; %bb.36: ; %land.rhs134.preheader
+; CHECK-NEXT:    mov x12, xzr
+; CHECK-NEXT:    mov w0, #1 ; =0x1
+; CHECK-NEXT:    b LBB0_38
+; CHECK-NEXT:  LBB0_37: ; %if.then152
+; CHECK-NEXT:    ; in Loop: Header=BB0_38 Depth=1
+; CHECK-NEXT:    add x8, x10, x12
+; CHECK-NEXT:    add x12, x12, #1
+; CHECK-NEXT:    add x8, x8, x9
+; CHECK-NEXT:    ldrb w8, [x8, #1]
+; CHECK-NEXT:    cbz w8, LBB0_43
+; CHECK-NEXT:  LBB0_38: ; %land.rhs134
+; CHECK-NEXT:    ; =>This Inner Loop Header: Depth=1
+; CHECK-NEXT:    add x13, x11, x12
+; CHECK-NEXT:    ldrb w13, [x13, x9]
+; CHECK-NEXT:    cbz w13, LBB0_23
+; CHECK-NEXT:  ; %bb.39: ; %while.body139
+; CHECK-NEXT:    ; in Loop: Header=BB0_38 Depth=1
+; CHECK-NEXT:    cmp w8, w13
+; CHECK-NEXT:    b.eq LBB0_37
+; CHECK-NEXT:  ; %bb.40: ; %while.body139
+; CHECK-NEXT:    ; in Loop: Header=BB0_38 Depth=1
+; CHECK-NEXT:    cmp w13, #42
+; CHECK-NEXT:    b.eq LBB0_37
+; CHECK-NEXT:  ; %bb.41: ; %while.body139
+; CHECK-NEXT:    ; in Loop: Header=BB0_38 Depth=1
+; CHECK-NEXT:    cmp w8, #94
+; CHECK-NEXT:    b.eq LBB0_37
+; CHECK-NEXT:  LBB0_42:
+; CHECK-NEXT:    mov w0, wzr
+; CHECK-NEXT:  LBB0_43: ; %return
+; CHECK-NEXT:    ldp x29, x30, [sp, #48] ; 16-byte Folded Reload
+; CHECK-NEXT:    add sp, sp, #64
+; CHECK-NEXT:    ret
+; CHECK-NEXT:  LBB0_44: ; %lor.lhs.false47
+; CHECK-NEXT:    cmp x12, #2
+; CHECK-NEXT:    b.ne LBB0_11
+; CHECK-NEXT:  ; %bb.45: ; %land.lhs.true52
+; CHECK-NEXT:    add x12, x10, x9
+; CHECK-NEXT:    mov w0, #1 ; =0x1
+; CHECK-NEXT:    ldurb w12, [x12, #-1]
+; CHECK-NEXT:    cmp w12, #73
+; CHECK-NEXT:    b.eq LBB0_43
+; CHECK-NEXT:  ; %bb.46: ; %land.lhs.true52
+; CHECK-NEXT:    cbz w8, LBB0_43
+; CHECK-NEXT:    b LBB0_12
+; CHECK-NEXT:    .loh AdrpLdrGot Lloh0, Lloh1
+; CHECK-NEXT:    .loh AdrpLdrGot Lloh2, Lloh3
+; CHECK-NEXT:    .loh AdrpLdrGot Lloh4, Lloh5
 entry:
   %0 = load i16, ptr %a, align 2
   %1 = load i16, ptr %b, align 2