; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-apple-macosx -regalloc=greedy | FileCheck %s ; This testing case is reduced from 254.gap SyFgets function. ; We make sure a spill is hoisted to a cold BB inside the hotter outer loop. %struct.TMP.1 = type { ptr, ptr, [1024 x i8] } %struct.TMP.2 = type { ptr, i32, i32, i16, i16, %struct.TMP.3, i32, ptr, ptr, ptr, ptr, ptr, %struct.TMP.3, ptr, i32, [3 x i8], [1 x i8], %struct.TMP.3, i32, i64 } %struct.TMP.4 = type opaque %struct.TMP.3 = type { ptr, i32 } @syBuf = external global [16 x %struct.TMP.1], align 16 @syHistory = external global [8192 x i8], align 16 @SyFgets.yank = external global [512 x i8], align 16 @syCTRO = external global i32, align 4 define ptr @SyFgets(ptr %line, i64 %length, i64 %fid) { ; CHECK-LABEL: SyFgets: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: pushq %rbp ; CHECK-NEXT: .cfi_def_cfa_offset 16 ; CHECK-NEXT: pushq %r15 ; CHECK-NEXT: .cfi_def_cfa_offset 24 ; CHECK-NEXT: pushq %r14 ; CHECK-NEXT: .cfi_def_cfa_offset 32 ; CHECK-NEXT: pushq %r13 ; CHECK-NEXT: .cfi_def_cfa_offset 40 ; CHECK-NEXT: pushq %r12 ; CHECK-NEXT: .cfi_def_cfa_offset 48 ; CHECK-NEXT: pushq %rbx ; CHECK-NEXT: .cfi_def_cfa_offset 56 ; CHECK-NEXT: subq $552, %rsp ## imm = 0x228 ; CHECK-NEXT: .cfi_def_cfa_offset 608 ; CHECK-NEXT: .cfi_offset %rbx, -56 ; CHECK-NEXT: .cfi_offset %r12, -48 ; CHECK-NEXT: .cfi_offset %r13, -40 ; CHECK-NEXT: .cfi_offset %r14, -32 ; CHECK-NEXT: .cfi_offset %r15, -24 ; CHECK-NEXT: .cfi_offset %rbp, -16 ; CHECK-NEXT: testq $-3, %rdx ; CHECK-NEXT: jne LBB0_4 ; CHECK-NEXT: ## %bb.1: ## %if.end ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: jne LBB0_5 ; CHECK-NEXT: ## %bb.2: ## %if.then4 ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: je LBB0_54 ; CHECK-NEXT: ## %bb.3: ## %SyTime.exit ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: je LBB0_54 ; CHECK-NEXT: LBB0_4: ## %cleanup ; CHECK-NEXT: addq $552, %rsp ## imm = 0x228 ; CHECK-NEXT: popq %rbx ; CHECK-NEXT: popq %r12 ; CHECK-NEXT: popq %r13 ; CHECK-NEXT: popq %r14 ; CHECK-NEXT: popq %r15 ; CHECK-NEXT: popq %rbp ; CHECK-NEXT: retq ; CHECK-NEXT: LBB0_5: ## %if.end25 ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: je LBB0_54 ; CHECK-NEXT: ## %bb.6: ## %SyTime.exit2720 ; CHECK-NEXT: movq %rdx, %rbx ; CHECK-NEXT: movq %rdi, %rbp ; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rax ; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rcx ; CHECK-NEXT: cmpq %rax, %rcx ; CHECK-NEXT: jae LBB0_8 ; CHECK-NEXT: ## %bb.7: ## %for.body.lr.ph ; CHECK-NEXT: movl $512, %edx ## imm = 0x200 ; CHECK-NEXT: movl $32, %esi ; CHECK-NEXT: callq _memset ; CHECK-NEXT: LBB0_8: ## %while.body.preheader ; CHECK-NEXT: movq %rbp, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill ; CHECK-NEXT: imulq $1040, %rbx, %rax ## imm = 0x410 ; CHECK-NEXT: movq _syBuf@GOTPCREL(%rip), %rcx ; CHECK-NEXT: leaq 8(%rcx,%rax), %rdx ; CHECK-NEXT: movl $1, %r15d ; CHECK-NEXT: movq _syCTRO@GOTPCREL(%rip), %rax ; CHECK-NEXT: movb $1, %cl ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_9: ## %do.body ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: movl $0, (%rax) ; CHECK-NEXT: testb %cl, %cl ; CHECK-NEXT: jne LBB0_9 ; CHECK-NEXT: ## %bb.10: ## %do.end ; CHECK-NEXT: movq %rdx, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill ; CHECK-NEXT: xorl %r14d, %r14d ; CHECK-NEXT: testb %r14b, %r14b ; CHECK-NEXT: jne LBB0_11 ; CHECK-NEXT: ## %bb.12: ## %while.body200.preheader ; CHECK-NEXT: xorl %r13d, %r13d ; CHECK-NEXT: leaq LJTI0_0(%rip), %rdx ; CHECK-NEXT: leaq LJTI0_1(%rip), %rbx ; CHECK-NEXT: movl $0, {{[-0-9]+}}(%r{{[sb]}}p) ## 4-byte Folded Spill ; CHECK-NEXT: xorl %r12d, %r12d ; CHECK-NEXT: jmp LBB0_13 ; CHECK-NEXT: LBB0_43: ## %while.cond1037.preheader ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: testb %r13b, %r13b ; CHECK-NEXT: je LBB0_54 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_20: ## %while.cond197.backedge ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: decl %r15d ; CHECK-NEXT: testl %r15d, %r15d ; CHECK-NEXT: movl %r14d, %r12d ; CHECK-NEXT: jle LBB0_21 ; CHECK-NEXT: LBB0_13: ## %while.body200 ; CHECK-NEXT: ## =>This Loop Header: Depth=1 ; CHECK-NEXT: ## Child Loop BB0_28 Depth 2 ; CHECK-NEXT: ## Child Loop BB0_37 Depth 2 ; CHECK-NEXT: leal -268(%r14), %eax ; CHECK-NEXT: cmpl $105, %eax ; CHECK-NEXT: ja LBB0_14 ; CHECK-NEXT: ## %bb.55: ## %while.body200 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: movslq (%rbx,%rax,4), %rax ; CHECK-NEXT: addq %rbx, %rax ; CHECK-NEXT: jmpq *%rax ; CHECK-NEXT: LBB0_25: ## %sw.bb474 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: testb %r13b, %r13b ; CHECK-NEXT: ## implicit-def: $rbp ; CHECK-NEXT: jne LBB0_33 ; CHECK-NEXT: ## %bb.26: ## %do.body479.preheader ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: testb %r13b, %r13b ; CHECK-NEXT: ## implicit-def: $rbp ; CHECK-NEXT: jne LBB0_33 ; CHECK-NEXT: ## %bb.27: ## %land.rhs485.preheader ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: ## implicit-def: $rax ; CHECK-NEXT: jmp LBB0_28 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_31: ## %do.body479.backedge ; CHECK-NEXT: ## in Loop: Header=BB0_28 Depth=2 ; CHECK-NEXT: leaq 1(%rbp), %rax ; CHECK-NEXT: testb %r13b, %r13b ; CHECK-NEXT: je LBB0_32 ; CHECK-NEXT: LBB0_28: ## %land.rhs485 ; CHECK-NEXT: ## Parent Loop BB0_13 Depth=1 ; CHECK-NEXT: ## => This Inner Loop Header: Depth=2 ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: js LBB0_54 ; CHECK-NEXT: ## %bb.29: ## %cond.true.i.i2780 ; CHECK-NEXT: ## in Loop: Header=BB0_28 Depth=2 ; CHECK-NEXT: movq %rax, %rbp ; CHECK-NEXT: testb %r13b, %r13b ; CHECK-NEXT: jne LBB0_31 ; CHECK-NEXT: ## %bb.30: ## %lor.rhs500 ; CHECK-NEXT: ## in Loop: Header=BB0_28 Depth=2 ; CHECK-NEXT: movl $256, %esi ## imm = 0x100 ; CHECK-NEXT: callq ___maskrune ; CHECK-NEXT: testb %r13b, %r13b ; CHECK-NEXT: jne LBB0_31 ; CHECK-NEXT: jmp LBB0_33 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_14: ## %while.body200 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: leal 1(%r14), %eax ; CHECK-NEXT: cmpl $21, %eax ; CHECK-NEXT: ja LBB0_20 ; CHECK-NEXT: ## %bb.15: ## %while.body200 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: movslq (%rdx,%rax,4), %rax ; CHECK-NEXT: addq %rdx, %rax ; CHECK-NEXT: jmpq *%rax ; CHECK-NEXT: LBB0_18: ## %while.cond201.preheader ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: movl $1, %r14d ; CHECK-NEXT: jmp LBB0_20 ; CHECK-NEXT: LBB0_44: ## %sw.bb1134 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rax ; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rcx ; CHECK-NEXT: cmpq %rax, %rcx ; CHECK-NEXT: jb LBB0_54 ; CHECK-NEXT: ## %bb.45: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: movl $0, {{[-0-9]+}}(%r{{[sb]}}p) ## 4-byte Folded Spill ; CHECK-NEXT: movl $268, %r14d ## imm = 0x10C ; CHECK-NEXT: jmp LBB0_20 ; CHECK-NEXT: LBB0_39: ## %sw.bb566 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: movl $20, %r14d ; CHECK-NEXT: jmp LBB0_20 ; CHECK-NEXT: LBB0_19: ## %sw.bb243 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: movl $2, %r14d ; CHECK-NEXT: jmp LBB0_20 ; CHECK-NEXT: LBB0_32: ## %if.end517.loopexitsplit ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: incq %rbp ; CHECK-NEXT: LBB0_33: ## %if.end517 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: leal -324(%r12), %eax ; CHECK-NEXT: cmpl $59, %eax ; CHECK-NEXT: ja LBB0_34 ; CHECK-NEXT: ## %bb.56: ## %if.end517 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: movabsq $576460756598390785, %rcx ## imm = 0x800000100000001 ; CHECK-NEXT: btq %rax, %rcx ; CHECK-NEXT: jb LBB0_37 ; CHECK-NEXT: LBB0_34: ## %if.end517 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: cmpl $11, %r12d ; CHECK-NEXT: je LBB0_37 ; CHECK-NEXT: ## %bb.35: ## %if.end517 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: cmpl $24, %r12d ; CHECK-NEXT: je LBB0_37 ; CHECK-NEXT: ## %bb.36: ## %if.then532 ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: movq _SyFgets.yank@GOTPCREL(%rip), %rax ; CHECK-NEXT: movb $0, (%rax) ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_37: ## %for.cond534 ; CHECK-NEXT: ## Parent Loop BB0_13 Depth=1 ; CHECK-NEXT: ## => This Inner Loop Header: Depth=2 ; CHECK-NEXT: testb %r13b, %r13b ; CHECK-NEXT: jne LBB0_37 ; CHECK-NEXT: ## %bb.38: ## %for.cond542.preheader ; CHECK-NEXT: ## in Loop: Header=BB0_13 Depth=1 ; CHECK-NEXT: testb %r13b, %r13b ; CHECK-NEXT: movb $0, (%rbp) ; CHECK-NEXT: leaq LJTI0_0(%rip), %rdx ; CHECK-NEXT: jmp LBB0_20 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_41: ## %while.cond864 ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: jmp LBB0_41 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_42: ## %while.cond962 ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: jmp LBB0_42 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_24: ## %for.cond357 ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: jmp LBB0_24 ; CHECK-NEXT: LBB0_11: ; CHECK-NEXT: movl $0, {{[-0-9]+}}(%r{{[sb]}}p) ## 4-byte Folded Spill ; CHECK-NEXT: LBB0_21: ## %while.end1465 ; CHECK-NEXT: incl %r14d ; CHECK-NEXT: cmpl $16, %r14d ; CHECK-NEXT: ja LBB0_49 ; CHECK-NEXT: ## %bb.22: ## %while.end1465 ; CHECK-NEXT: movl $83969, %eax ## imm = 0x14801 ; CHECK-NEXT: btl %r14d, %eax ; CHECK-NEXT: jae LBB0_49 ; CHECK-NEXT: ## %bb.23: ; CHECK-NEXT: xorl %ebp, %ebp ; CHECK-NEXT: movq {{[-0-9]+}}(%r{{[sb]}}p), %rbx ## 8-byte Reload ; CHECK-NEXT: LBB0_47: ## %if.then1477 ; CHECK-NEXT: movl $1, %edx ; CHECK-NEXT: callq _write ; CHECK-NEXT: subq %rbp, %rbx ; CHECK-NEXT: movq _syHistory@GOTPCREL(%rip), %rax ; CHECK-NEXT: leaq 8189(%rbx,%rax), %rax ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_48: ## %for.body1723 ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: decq %rax ; CHECK-NEXT: jmp LBB0_48 ; CHECK-NEXT: LBB0_46: ## %if.then1477.loopexit ; CHECK-NEXT: movq {{[-0-9]+}}(%r{{[sb]}}p), %rbx ## 8-byte Reload ; CHECK-NEXT: movq %rbx, %rbp ; CHECK-NEXT: jmp LBB0_47 ; CHECK-NEXT: LBB0_16: ## %while.cond635.preheader ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: je LBB0_40 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_17: ## %for.body643.us ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: jmp LBB0_17 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_40: ## %while.cond661 ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: jmp LBB0_40 ; CHECK-NEXT: LBB0_49: ## %for.cond1480.preheader ; CHECK-NEXT: movl $512, %eax ## imm = 0x200 ; CHECK-NEXT: cmpq %rax, %rax ; CHECK-NEXT: jae LBB0_54 ; CHECK-NEXT: ## %bb.50: ## %for.body1664.lr.ph ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: movq {{[-0-9]+}}(%r{{[sb]}}p), %rbx ## 8-byte Reload ; CHECK-NEXT: movl {{[-0-9]+}}(%r{{[sb]}}p), %ebp ## 4-byte Reload ; CHECK-NEXT: jne LBB0_53 ; CHECK-NEXT: ## %bb.51: ## %while.body1679.preheader ; CHECK-NEXT: incl %ebp ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_52: ## %while.body1679 ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: movq (%rbx), %rdi ; CHECK-NEXT: callq _fileno ; CHECK-NEXT: movslq %ebp, %rax ; CHECK-NEXT: leal 1(%rax), %ebp ; CHECK-NEXT: cmpq %rax, %rax ; CHECK-NEXT: jl LBB0_52 ; CHECK-NEXT: LBB0_53: ## %while.cond1683.preheader ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: LBB0_54: ## %if.then.i ; CHECK-NEXT: ud2 entry: %sub.ptr.rhs.cast646 = ptrtoint ptr %line to i64 %old = alloca [512 x i8], align 16 switch i64 %fid, label %if.then [ i64 2, label %if.end i64 0, label %if.end ] if.then: br label %cleanup if.end: switch i64 undef, label %if.end25 [ i64 0, label %if.then4 i64 1, label %if.end25 ] if.then4: br i1 undef, label %SyTime.exit, label %if.then.i if.then.i: unreachable SyTime.exit: br i1 undef, label %SyTime.exit2681, label %if.then.i2673 if.then.i2673: unreachable SyTime.exit2681: br label %cleanup land.lhs.true14: unreachable if.end25: br i1 undef, label %SyTime.exit2720, label %if.then.i2712 if.then.i2712: unreachable SyTime.exit2720: %add.ptr = getelementptr [512 x i8], ptr %old, i64 0, i64 512 %cmp293427 = icmp ult ptr %old, %add.ptr br i1 %cmp293427, label %for.body.lr.ph, label %while.body.preheader for.body.lr.ph: call void @llvm.memset.p0.i64(ptr align 16 undef, i8 32, i64 512, i1 false) br label %while.body.preheader while.body.preheader: %add.ptr1603 = getelementptr [512 x i8], ptr null, i64 0, i64 512 %echo.i3101 = getelementptr [16 x %struct.TMP.1], ptr @syBuf, i64 0, i64 %fid, i32 1 %0 = xor i64 %sub.ptr.rhs.cast646, -1 br label %do.body do.body: %ch2.0 = phi i32 [ 0, %while.body.preheader ], [ %ch.12.ch2.12, %do.body ] %rep.0 = phi i32 [ 1, %while.body.preheader ], [ %rep.6, %do.body ] store i32 0, ptr @syCTRO, align 4, !tbaa !1 %ch.0.ch2.0 = select i1 undef, i32 14, i32 %ch2.0 %ch2.2 = select i1 undef, i32 0, i32 %ch.0.ch2.0 %ch.2.ch2.2 = select i1 undef, i32 0, i32 %ch2.2 %ch2.4 = select i1 undef, i32 278, i32 %ch.2.ch2.2 %ch2.5 = select i1 undef, i32 0, i32 %ch2.4 %rep.2 = select i1 undef, i32 undef, i32 %rep.0 %ch.5.ch2.5 = select i1 undef, i32 undef, i32 %ch2.5 %ch2.7 = select i1 undef, i32 0, i32 %ch.5.ch2.5 %rep.3 = select i1 undef, i32 undef, i32 %rep.2 %ch.7.ch2.7 = select i1 false, i32 0, i32 %ch2.7 %mul98.rep.3 = select i1 false, i32 0, i32 %rep.3 %ch2.9 = select i1 undef, i32 undef, i32 %ch.7.ch2.7 %rep.5 = select i1 undef, i32 undef, i32 %mul98.rep.3 %ch2.10 = select i1 false, i32 undef, i32 %ch2.9 %rep.6 = select i1 false, i32 undef, i32 %rep.5 %isdigittmp = add i32 %ch2.10, -48 %isdigit = icmp ult i32 %isdigittmp, 10 %cmp119 = icmp eq i32 undef, 22 %or.cond1875 = and i1 %isdigit, %cmp119 %ch.10.ch2.10 = select i1 %or.cond1875, i32 undef, i32 %ch2.10 %.ch.10 = select i1 %or.cond1875, i32 0, i32 undef %ch2.12 = select i1 undef, i32 %.ch.10, i32 %ch.10.ch2.10 %ch.12 = select i1 undef, i32 0, i32 %.ch.10 %ch.12.ch2.12 = select i1 false, i32 %ch.12, i32 %ch2.12 %.ch.12 = select i1 false, i32 0, i32 %ch.12 %cmp147 = icmp eq i32 %.ch.12, 0 br i1 %cmp147, label %do.body, label %do.end do.end: %cmp164 = icmp eq i32 %ch.12.ch2.12, 21 %mul167 = shl i32 %rep.6, 2 %rep.8 = select i1 %cmp164, i32 %mul167, i32 %rep.6 %..ch.19 = select i1 false, i32 2, i32 0 br i1 undef, label %while.body200, label %while.end1465 while.body200: %dec3386.in = phi i32 [ %dec3386, %while.cond197.backedge ], [ %rep.8, %do.end ] %oldc.13384 = phi i32 [ %oldc.1.be, %while.cond197.backedge ], [ 0, %do.end ] %ch.213379 = phi i32 [ %last.1.be, %while.cond197.backedge ], [ %..ch.19, %do.end ] %last.13371 = phi i32 [ %last.1.be, %while.cond197.backedge ], [ 0, %do.end ] %dec3386 = add i32 %dec3386.in, -1 switch i32 %ch.213379, label %sw.default [ i32 1, label %while.cond201.preheader i32 322, label %sw.bb206 i32 354, label %sw.bb206 i32 2, label %sw.bb243 i32 364, label %sw.bb1077 i32 326, label %sw.bb256 i32 358, label %sw.bb256 i32 341, label %sw.bb979 i32 323, label %while.cond1037.preheader i32 373, label %sw.bb979 i32 4, label %if.then1477 i32 332, label %sw.bb1077 i32 11, label %for.cond357 i32 355, label %while.cond1037.preheader i32 324, label %sw.bb474 i32 356, label %sw.bb474 i32 20, label %sw.bb566 i32 -1, label %while.cond197.backedge i32 268, label %sw.bb1134 i32 16, label %while.cond635.preheader i32 18, label %sw.bb956 i32 316, label %while.cond864 ] while.cond1037.preheader: %cmp10393273 = icmp eq i8 undef, 0 br i1 %cmp10393273, label %if.end1070, label %land.rhs1041 while.cond635.preheader: br i1 undef, label %for.body643.us, label %while.cond661 for.body643.us: br label %for.body643.us while.cond201.preheader: %umax = select i1 false, i64 undef, i64 %0 %1 = xor i64 %umax, -1 %2 = inttoptr i64 %1 to ptr br label %while.cond197.backedge sw.bb206: br label %while.cond197.backedge sw.bb243: br label %while.cond197.backedge sw.bb256: br label %while.cond197.backedge while.cond197.backedge: %last.1.be = phi i32 [ %ch.213379, %sw.default ], [ -1, %while.body200 ], [ %ch.213379, %sw.bb1077 ], [ %ch.213379, %sw.bb979 ], [ 18, %sw.bb956 ], [ 20, %sw.bb566 ], [ %ch.213379, %for.end552 ], [ %ch.213379, %sw.bb256 ], [ 2, %sw.bb243 ], [ 1, %while.cond201.preheader ], [ 268, %for.cond1145.preheader ], [ %ch.213379, %sw.bb206 ] %oldc.1.be = phi i32 [ %oldc.13384, %sw.default ], [ %oldc.13384, %while.body200 ], [ %oldc.13384, %sw.bb1077 ], [ %oldc.13384, %sw.bb979 ], [ %oldc.13384, %sw.bb956 ], [ %oldc.13384, %sw.bb566 ], [ %oldc.13384, %for.end552 ], [ %oldc.13384, %sw.bb256 ], [ %oldc.13384, %sw.bb243 ], [ %oldc.13384, %while.cond201.preheader ], [ 0, %for.cond1145.preheader ], [ %oldc.13384, %sw.bb206 ] %cmp198 = icmp sgt i32 %dec3386, 0 br i1 %cmp198, label %while.body200, label %while.end1465 for.cond357: br label %for.cond357 sw.bb474: ; spill is hoisted here. Although loop depth1 is even hotter than loop depth2, sw.bb474 is still cold. %cmp476 = icmp eq i8 undef, 0 br i1 %cmp476, label %if.end517, label %do.body479.preheader do.body479.preheader: %cmp4833314 = icmp eq i8 undef, 0 br i1 %cmp4833314, label %if.end517, label %land.rhs485 land.rhs485: %incdec.ptr4803316 = phi ptr [ %incdec.ptr480, %do.body479.backedge.land.rhs485_crit_edge ], [ undef, %do.body479.preheader ] %isascii.i.i27763151 = icmp sgt i8 undef, -1 br i1 %isascii.i.i27763151, label %cond.true.i.i2780, label %cond.false.i.i2782 cond.true.i.i2780: br i1 undef, label %land.lhs.true490, label %lor.rhs500 cond.false.i.i2782: unreachable land.lhs.true490: br i1 false, label %lor.rhs500, label %do.body479.backedge lor.rhs500: ; Make sure spill is hoisted to a cold preheader in outside loop. %call3.i.i2792 = call i32 @__maskrune(i32 undef, i64 256) br i1 undef, label %land.lhs.true504, label %do.body479.backedge land.lhs.true504: br i1 undef, label %do.body479.backedge, label %if.end517 do.body479.backedge: %incdec.ptr480 = getelementptr i8, ptr %incdec.ptr4803316, i64 1 %cmp483 = icmp eq i8 undef, 0 br i1 %cmp483, label %if.end517, label %do.body479.backedge.land.rhs485_crit_edge do.body479.backedge.land.rhs485_crit_edge: br label %land.rhs485 if.end517: %q.4 = phi ptr [ undef, %sw.bb474 ], [ undef, %do.body479.preheader ], [ %incdec.ptr480, %do.body479.backedge ], [ %incdec.ptr4803316, %land.lhs.true504 ] switch i32 %last.13371, label %if.then532 [ i32 383, label %for.cond534 i32 356, label %for.cond534 i32 324, label %for.cond534 i32 24, label %for.cond534 i32 11, label %for.cond534 ] if.then532: store i8 0, ptr @SyFgets.yank, align 16, !tbaa !5 br label %for.cond534 for.cond534: %cmp536 = icmp eq i8 undef, 0 br i1 %cmp536, label %for.cond542.preheader, label %for.cond534 for.cond542.preheader: br i1 undef, label %for.body545, label %for.end552 for.body545: br i1 undef, label %for.end552, label %for.body545 for.end552: %s.2.lcssa = phi ptr [ undef, %for.cond542.preheader ], [ %q.4, %for.body545 ] %sub.ptr.lhs.cast553 = ptrtoint ptr %s.2.lcssa to i64 %sub.ptr.sub555 = sub i64 %sub.ptr.lhs.cast553, 0 %arrayidx556 = getelementptr i8, ptr null, i64 %sub.ptr.sub555 store i8 0, ptr %arrayidx556, align 1, !tbaa !5 br label %while.cond197.backedge sw.bb566: br label %while.cond197.backedge while.cond661: br label %while.cond661 while.cond864: br label %while.cond864 sw.bb956: br i1 undef, label %if.then959, label %while.cond197.backedge if.then959: br label %while.cond962 while.cond962: br label %while.cond962 sw.bb979: br label %while.cond197.backedge land.rhs1041: unreachable if.end1070: br label %sw.bb1077 sw.bb1077: br label %while.cond197.backedge sw.bb1134: br i1 false, label %for.body1139, label %for.cond1145.preheader for.cond1145.preheader: br i1 %cmp293427, label %for.body1150.lr.ph, label %while.cond197.backedge for.body1150.lr.ph: unreachable for.body1139: unreachable sw.default: br label %while.cond197.backedge while.end1465: %oldc.1.lcssa = phi i32 [ 0, %do.end ], [ %oldc.1.be, %while.cond197.backedge ] %ch.21.lcssa = phi i32 [ %..ch.19, %do.end ], [ %last.1.be, %while.cond197.backedge ] switch i32 %ch.21.lcssa, label %for.cond1480.preheader [ i32 -1, label %if.then1477 i32 15, label %if.then1477 i32 13, label %if.then1477 i32 10, label %if.then1477 ] for.cond1480.preheader: br i1 undef, label %for.body1606.lr.ph, label %for.end1609 if.then1477: %p.1.lcssa3539 = phi ptr [ null, %while.end1465 ], [ null, %while.end1465 ], [ null, %while.end1465 ], [ null, %while.end1465 ], [ %line, %while.body200 ] %call1.i3057 = call i64 @"\01_write"(i32 undef, ptr undef, i64 1) %sub.ptr.lhs.cast1717 = ptrtoint ptr %p.1.lcssa3539 to i64 %sub.ptr.sub1719 = sub i64 %sub.ptr.lhs.cast1717, %sub.ptr.rhs.cast646 %idx.neg1727 = sub i64 0, %sub.ptr.sub1719 br label %for.body1723 for.body1606.lr.ph: br label %for.end1609 for.end1609: br i1 undef, label %for.cond1659.preheader, label %land.lhs.true1614 land.lhs.true1614: br label %for.cond1659.preheader for.cond1659.preheader: %cmp16623414 = icmp ult ptr undef, %add.ptr1603 br i1 %cmp16623414, label %for.body1664.lr.ph, label %while.body1703.lr.ph for.body1664.lr.ph: %cmp16773405 = icmp slt i64 undef, undef br i1 %cmp16773405, label %while.body1679, label %while.cond1683.preheader while.body1703.lr.ph: unreachable while.cond1683.preheader: br i1 undef, label %while.body1691, label %while.end1693 while.body1679: %oldc.43406 = phi i32 [ %inc, %syEchoch.exit3070 ], [ %oldc.1.lcssa, %for.body1664.lr.ph ] %3 = load ptr, ptr %echo.i3101, align 8, !tbaa !6 %call.i3062 = call i32 @fileno(ptr %3) br i1 undef, label %if.then.i3069, label %syEchoch.exit3070 if.then.i3069: br label %syEchoch.exit3070 syEchoch.exit3070: %inc = add i32 %oldc.43406, 1 %conv1672 = sext i32 %inc to i64 %cmp1677 = icmp slt i64 %conv1672, undef br i1 %cmp1677, label %while.body1679, label %while.cond1683.preheader while.body1691: unreachable while.end1693: unreachable for.body1723: %q.303203 = phi ptr [ getelementptr inbounds ([8192 x i8], ptr @syHistory, i64 0, i64 8189), %if.then1477 ], [ %incdec.ptr1730, %for.body1723 ] %add.ptr1728 = getelementptr i8, ptr %q.303203, i64 %idx.neg1727 %4 = load i8, ptr %add.ptr1728, align 1, !tbaa !5 %incdec.ptr1730 = getelementptr i8, ptr %q.303203, i64 -1 br label %for.body1723 cleanup: ret ptr undef } declare i32 @fileno(ptr nocapture) declare i64 @"\01_write"(i32, ptr, i64) declare i32 @__maskrune(i32, i64) declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1) !llvm.ident = !{!0} !0 = !{!"clang version 3.5.0 (trunk 204257)"} !1 = !{!2, !2, i64 0} !2 = !{!"int", !3, i64 0} !3 = !{!"omnipotent char", !4, i64 0} !4 = !{!"Simple C/C++ TBAA"} !5 = !{!3, !3, i64 0} !6 = !{!7, !8, i64 8} !7 = !{!"", !8, i64 0, !8, i64 8, !3, i64 16} !8 = !{!"any pointer", !3, i64 0}