287 lines
10 KiB
LLVM
287 lines
10 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc -simplifycfg-require-and-preserve-domtree=1 < %s -frame-pointer=all -verify-machineinstrs | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"
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target triple = "i386-apple-macosx10.7"
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; This test case has a landing pad with two predecessors, and a variable that
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; is undef on the first edge while carrying the first function return value on
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; the second edge.
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;
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; Live range splitting tries to isolate the block containing the first function
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; call, and it is important that the last split point is after the function call
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; so the return value can spill.
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;
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; <rdar://problem/10664933>
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@Exception = external unnamed_addr constant { ptr, ptr }
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declare void @llvm.memset.p0.i32(ptr nocapture, i8, i32, i1) nounwind
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define void @f(ptr nocapture %arg, ptr nocapture %arg1, ptr nocapture %arg2, ptr nocapture %arg3, i32 %arg4, i32 %arg5) optsize ssp personality ptr @__gxx_personality_v0 {
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; CHECK-LABEL: f:
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; CHECK: ## %bb.0: ## %bb
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; CHECK-NEXT: pushl %ebp
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: .cfi_offset %ebp, -8
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: .cfi_def_cfa_register %ebp
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; CHECK-NEXT: pushl %ebx
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; CHECK-NEXT: pushl %edi
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; CHECK-NEXT: pushl %esi
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; CHECK-NEXT: subl $28, %esp
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; CHECK-NEXT: .cfi_offset %esi, -20
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; CHECK-NEXT: .cfi_offset %edi, -16
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; CHECK-NEXT: .cfi_offset %ebx, -12
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: xorl %edi, %edi
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; CHECK-NEXT: testb %al, %al
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; CHECK-NEXT: Ltmp0:
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; CHECK-NEXT: ## implicit-def: $ebx
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; CHECK-NEXT: calll __Znam
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; CHECK-NEXT: Ltmp1:
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; CHECK-NEXT: ## %bb.1: ## %bb11
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; CHECK-NEXT: movl %eax, %esi
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; CHECK-NEXT: movb $1, %al
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; CHECK-NEXT: testb %al, %al
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; CHECK-NEXT: jne LBB0_2
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; CHECK-NEXT: ## %bb.7: ## %bb31
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; CHECK-NEXT: ## implicit-def: $eax
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; CHECK-NEXT: ## kill: killed $eax
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; CHECK-NEXT: LBB0_8: ## %bb38
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; CHECK-NEXT: ## =>This Loop Header: Depth=1
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; CHECK-NEXT: ## Child Loop BB0_13 Depth 2
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; CHECK-NEXT: ## Child Loop BB0_16 Depth 3
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; CHECK-NEXT: ## Child Loop BB0_21 Depth 2
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; CHECK-NEXT: movb $1, %al
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; CHECK-NEXT: testb %al, %al
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; CHECK-NEXT: jne LBB0_9
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; CHECK-NEXT: ## %bb.10: ## %bb41
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; CHECK-NEXT: ## in Loop: Header=BB0_8 Depth=1
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; CHECK-NEXT: Ltmp2:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: movl %eax, {{[0-9]+}}(%esp)
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; CHECK-NEXT: movl %eax, {{[0-9]+}}(%esp)
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; CHECK-NEXT: movl %esi, (%esp)
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; CHECK-NEXT: calll _Pjii
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; CHECK-NEXT: Ltmp3:
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; CHECK-NEXT: ## %bb.11: ## %bb42
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; CHECK-NEXT: ## in Loop: Header=BB0_8 Depth=1
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: decl %eax
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; CHECK-NEXT: testl %eax, %eax
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; CHECK-NEXT: jne LBB0_18
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; CHECK-NEXT: ## %bb.12: ## %bb45.preheader
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; CHECK-NEXT: ## in Loop: Header=BB0_8 Depth=1
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; CHECK-NEXT: movl $255, %eax
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; CHECK-NEXT: LBB0_13: ## %bb45
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; CHECK-NEXT: ## Parent Loop BB0_8 Depth=1
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; CHECK-NEXT: ## => This Loop Header: Depth=2
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; CHECK-NEXT: ## Child Loop BB0_16 Depth 3
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; CHECK-NEXT: movb $1, %cl
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; CHECK-NEXT: testb %cl, %cl
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; CHECK-NEXT: jne LBB0_19
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; CHECK-NEXT: ## %bb.14: ## %bb48
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; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=2
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; CHECK-NEXT: jne LBB0_17
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; CHECK-NEXT: ## %bb.15: ## %bb49.preheader
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; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=2
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; CHECK-NEXT: xorl %ecx, %ecx
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; CHECK-NEXT: movl %esi, %edx
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; CHECK-NEXT: movl %edi, %ebx
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; CHECK-NEXT: LBB0_16: ## %bb49
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; CHECK-NEXT: ## Parent Loop BB0_8 Depth=1
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; CHECK-NEXT: ## Parent Loop BB0_13 Depth=2
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; CHECK-NEXT: ## => This Inner Loop Header: Depth=3
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; CHECK-NEXT: incl %ecx
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; CHECK-NEXT: addl $4, %edx
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; CHECK-NEXT: decl %ebx
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; CHECK-NEXT: jne LBB0_16
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; CHECK-NEXT: LBB0_17: ## %bb57
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; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=2
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; CHECK-NEXT: decl %eax
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; CHECK-NEXT: jmp LBB0_13
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; CHECK-NEXT: LBB0_19: ## %bb59
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; CHECK-NEXT: ## in Loop: Header=BB0_8 Depth=1
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; CHECK-NEXT: movl $-4, %eax
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; CHECK-NEXT: movl %eax, {{[0-9]+}}(%esp)
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; CHECK-NEXT: movl $0, (%esp)
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; CHECK-NEXT: calll ___bzero
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; CHECK-NEXT: movb $1, %al
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; CHECK-NEXT: testb %al, %al
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; CHECK-NEXT: jne LBB0_22
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; CHECK-NEXT: ## %bb.20: ## %bb61.preheader
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; CHECK-NEXT: ## in Loop: Header=BB0_8 Depth=1
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; CHECK-NEXT: movl %esi, %eax
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; CHECK-NEXT: movl %edi, %ecx
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; CHECK-NEXT: LBB0_21: ## %bb61
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; CHECK-NEXT: ## Parent Loop BB0_8 Depth=1
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; CHECK-NEXT: ## => This Inner Loop Header: Depth=2
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; CHECK-NEXT: movl $0, (%eax)
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; CHECK-NEXT: addl $4, %eax
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; CHECK-NEXT: decl %ecx
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; CHECK-NEXT: jne LBB0_21
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; CHECK-NEXT: LBB0_22: ## %bb67
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; CHECK-NEXT: ## in Loop: Header=BB0_8 Depth=1
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; CHECK-NEXT: decl {{[-0-9]+}}(%e{{[sb]}}p) ## 4-byte Folded Spill
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; CHECK-NEXT: jmp LBB0_8
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; CHECK-NEXT: LBB0_18: ## %bb43
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; CHECK-NEXT: Ltmp5:
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; CHECK-NEXT: movl %esi, %ebx
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; CHECK-NEXT: calll _OnOverFlow
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; CHECK-NEXT: Ltmp6:
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; CHECK-NEXT: jmp LBB0_3
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; CHECK-NEXT: LBB0_2: ## %bb29
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; CHECK-NEXT: Ltmp7:
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; CHECK-NEXT: movl %esi, %ebx
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; CHECK-NEXT: calll _OnOverFlow
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; CHECK-NEXT: Ltmp8:
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; CHECK-NEXT: LBB0_3: ## %bb30
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; CHECK-NEXT: ud2
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; CHECK-NEXT: LBB0_4: ## %bb20.loopexit
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; CHECK-NEXT: Ltmp4:
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; CHECK-NEXT: LBB0_9:
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; CHECK-NEXT: movl %esi, %ebx
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; CHECK-NEXT: LBB0_6: ## %bb23
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; CHECK-NEXT: testl %ebx, %ebx
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; CHECK-NEXT: addl $28, %esp
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; CHECK-NEXT: popl %esi
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; CHECK-NEXT: popl %edi
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; CHECK-NEXT: popl %ebx
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; CHECK-NEXT: popl %ebp
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; CHECK-NEXT: retl
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; CHECK-NEXT: LBB0_5: ## %bb20.loopexit.split-lp
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; CHECK-NEXT: Ltmp9:
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; CHECK-NEXT: jmp LBB0_6
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; CHECK-NEXT: Lfunc_end0:
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bb:
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br i1 undef, label %bb6, label %bb7
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bb6: ; preds = %bb
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%tmp = select i1 false, i32 0, i32 undef
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br label %bb7
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bb7: ; preds = %bb6, %bb
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%tmp8 = phi i32 [ %tmp, %bb6 ], [ 0, %bb ]
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%tmp9 = shl i32 %tmp8, 2
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%tmp10 = invoke noalias ptr @_Znam(i32 undef) optsize
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to label %bb11 unwind label %bb20
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bb11: ; preds = %bb7
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%tmp12 = ptrtoint ptr %tmp10 to i32
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%tmp14 = shl i32 %tmp8, 2
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%tmp15 = getelementptr i32, ptr %tmp10, i32 undef
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%tmp16 = getelementptr i32, ptr %tmp10, i32 undef
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%tmp17 = zext i32 %tmp9 to i64
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%tmp18 = add i64 %tmp17, -1
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%tmp19 = icmp ugt i64 %tmp18, 4294967295
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br i1 %tmp19, label %bb29, label %bb31
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bb20: ; preds = %bb43, %bb41, %bb29, %bb7
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%tmp21 = phi i32 [ undef, %bb7 ], [ %tmp12, %bb43 ], [ %tmp12, %bb29 ], [ %tmp12, %bb41 ]
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%tmp22 = landingpad { ptr, i32 }
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catch ptr @Exception
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br i1 undef, label %bb23, label %bb69
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bb23: ; preds = %bb38, %bb20
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%tmp24 = phi i32 [ %tmp12, %bb38 ], [ %tmp21, %bb20 ]
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%tmp25 = icmp eq i32 %tmp24, 0
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br i1 %tmp25, label %bb28, label %bb26
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bb26: ; preds = %bb23
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%tmp27 = inttoptr i32 %tmp24 to ptr
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br label %bb28
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bb28: ; preds = %bb26, %bb23
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ret void
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bb29: ; preds = %bb11
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invoke void @OnOverFlow() optsize
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to label %bb30 unwind label %bb20
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bb30: ; preds = %bb29
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unreachable
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bb31: ; preds = %bb11
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%tmp33 = zext i32 %tmp8 to i64
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%tmp34 = add i64 %tmp33, -1
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%tmp35 = icmp ugt i64 %tmp34, 4294967295
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%tmp36 = icmp sgt i32 %tmp8, 0
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%tmp37 = add i32 %tmp9, -4
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br label %bb38
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bb38: ; preds = %bb67, %bb31
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%tmp39 = phi i32 [ %tmp68, %bb67 ], [ undef, %bb31 ]
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%tmp40 = icmp sgt i32 %tmp39, undef
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br i1 %tmp40, label %bb41, label %bb23
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bb41: ; preds = %bb38
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invoke void @Pjii(ptr %tmp16, i32 0, i32 %tmp8) optsize
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to label %bb42 unwind label %bb20
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bb42: ; preds = %bb41
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tail call void @llvm.memset.p0.i32(ptr %tmp15, i8 0, i32 %tmp9, i1 false) nounwind
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br i1 %tmp35, label %bb43, label %bb45
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bb43: ; preds = %bb42
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invoke void @OnOverFlow() optsize
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to label %bb44 unwind label %bb20
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bb44: ; preds = %bb43
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unreachable
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bb45: ; preds = %bb57, %bb42
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%tmp46 = phi i32 [ %tmp58, %bb57 ], [ 255, %bb42 ]
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%tmp47 = icmp slt i32 undef, 0
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br i1 %tmp47, label %bb48, label %bb59
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bb48: ; preds = %bb45
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tail call void @llvm.memset.p0.i32(ptr %tmp15, i8 0, i32 %tmp9, i1 false) nounwind
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br i1 %tmp36, label %bb49, label %bb57
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bb49: ; preds = %bb49, %bb48
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%tmp50 = phi i32 [ %tmp55, %bb49 ], [ 0, %bb48 ]
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%tmp51 = add i32 %tmp50, undef
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%tmp52 = add i32 %tmp50, undef
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%tmp53 = getelementptr i32, ptr %tmp10, i32 %tmp52
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%tmp54 = load i32, ptr %tmp53, align 4
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%tmp55 = add i32 %tmp50, 1
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%tmp56 = icmp eq i32 %tmp55, %tmp8
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br i1 %tmp56, label %bb57, label %bb49
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bb57: ; preds = %bb49, %bb48
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%tmp58 = add i32 %tmp46, -1
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br label %bb45
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bb59: ; preds = %bb45
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%tmp60 = ashr i32 %tmp46, 31
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tail call void @llvm.memset.p0.i32(ptr null, i8 0, i32 %tmp37, i1 false) nounwind
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br i1 %tmp36, label %bb61, label %bb67
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bb61: ; preds = %bb61, %bb59
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%tmp62 = phi i32 [ %tmp65, %bb61 ], [ 0, %bb59 ]
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%tmp63 = add i32 %tmp62, %tmp14
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%tmp64 = getelementptr i32, ptr %tmp10, i32 %tmp63
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store i32 0, ptr %tmp64, align 4
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%tmp65 = add i32 %tmp62, 1
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%tmp66 = icmp eq i32 %tmp65, %tmp8
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br i1 %tmp66, label %bb67, label %bb61
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bb67: ; preds = %bb61, %bb59
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%tmp68 = add i32 %tmp39, -1
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br label %bb38
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bb69: ; preds = %bb20
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resume { ptr, i32 } %tmp22
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}
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declare i32 @__gxx_personality_v0(...)
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declare noalias ptr @_Znam(i32) optsize
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declare void @Pjii(ptr, i32, i32) optsize
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declare i32 @llvm.eh.typeid.for(ptr) nounwind readnone
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declare void @OnOverFlow() noreturn optsize ssp align 2
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