180 lines
6.2 KiB
LLVM
180 lines
6.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-pc-linux-gnu | FileCheck %s -check-prefix=DEFAULT
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; RUN: llc < %s -mtriple=i686-pc-linux-gnu -x86-experimental-pref-innermost-loop-alignment=5 | FileCheck %s -check-prefix=ALIGN32
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; RUN: llc < %s -mtriple=i686-pc-linux-gnu -align-loops=32 -x86-experimental-pref-innermost-loop-alignment=6 | FileCheck %s -check-prefix=ALIGN64
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declare void @foo()
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define void @test(i32 %n, i32 %m) {
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; DEFAULT-LABEL: test:
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; DEFAULT: # %bb.0: # %entry
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; DEFAULT-NEXT: pushl %ebp
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; DEFAULT-NEXT: .cfi_def_cfa_offset 8
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; DEFAULT-NEXT: pushl %ebx
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; DEFAULT-NEXT: .cfi_def_cfa_offset 12
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; DEFAULT-NEXT: pushl %edi
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; DEFAULT-NEXT: .cfi_def_cfa_offset 16
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; DEFAULT-NEXT: pushl %esi
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; DEFAULT-NEXT: .cfi_def_cfa_offset 20
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; DEFAULT-NEXT: subl $12, %esp
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; DEFAULT-NEXT: .cfi_def_cfa_offset 32
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; DEFAULT-NEXT: .cfi_offset %esi, -20
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; DEFAULT-NEXT: .cfi_offset %edi, -16
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; DEFAULT-NEXT: .cfi_offset %ebx, -12
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; DEFAULT-NEXT: .cfi_offset %ebp, -8
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; DEFAULT-NEXT: xorl %esi, %esi
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; DEFAULT-NEXT: movl {{[0-9]+}}(%esp), %edi
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; DEFAULT-NEXT: movl {{[0-9]+}}(%esp), %ebx
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; DEFAULT-NEXT: .p2align 4, 0x90
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; DEFAULT-NEXT: .LBB0_1: # %outer
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; DEFAULT-NEXT: # =>This Loop Header: Depth=1
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; DEFAULT-NEXT: # Child Loop BB0_2 Depth 2
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; DEFAULT-NEXT: movl %edi, %ebp
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; DEFAULT-NEXT: .p2align 4, 0x90
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; DEFAULT-NEXT: .LBB0_2: # %inner
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; DEFAULT-NEXT: # Parent Loop BB0_1 Depth=1
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; DEFAULT-NEXT: # => This Inner Loop Header: Depth=2
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; DEFAULT-NEXT: calll foo@PLT
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; DEFAULT-NEXT: decl %ebp
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; DEFAULT-NEXT: jne .LBB0_2
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; DEFAULT-NEXT: # %bb.3: # %outer_bb
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; DEFAULT-NEXT: # in Loop: Header=BB0_1 Depth=1
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; DEFAULT-NEXT: incl %esi
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; DEFAULT-NEXT: cmpl %ebx, %esi
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; DEFAULT-NEXT: jne .LBB0_1
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; DEFAULT-NEXT: # %bb.4: # %exit
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; DEFAULT-NEXT: addl $12, %esp
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; DEFAULT-NEXT: .cfi_def_cfa_offset 20
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; DEFAULT-NEXT: popl %esi
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; DEFAULT-NEXT: .cfi_def_cfa_offset 16
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; DEFAULT-NEXT: popl %edi
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; DEFAULT-NEXT: .cfi_def_cfa_offset 12
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; DEFAULT-NEXT: popl %ebx
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; DEFAULT-NEXT: .cfi_def_cfa_offset 8
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; DEFAULT-NEXT: popl %ebp
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; DEFAULT-NEXT: .cfi_def_cfa_offset 4
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; DEFAULT-NEXT: retl
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;
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; ALIGN32-LABEL: test:
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; ALIGN32: # %bb.0: # %entry
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; ALIGN32-NEXT: pushl %ebp
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; ALIGN32-NEXT: .cfi_def_cfa_offset 8
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; ALIGN32-NEXT: pushl %ebx
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; ALIGN32-NEXT: .cfi_def_cfa_offset 12
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; ALIGN32-NEXT: pushl %edi
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; ALIGN32-NEXT: .cfi_def_cfa_offset 16
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; ALIGN32-NEXT: pushl %esi
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; ALIGN32-NEXT: .cfi_def_cfa_offset 20
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; ALIGN32-NEXT: subl $12, %esp
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; ALIGN32-NEXT: .cfi_def_cfa_offset 32
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; ALIGN32-NEXT: .cfi_offset %esi, -20
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; ALIGN32-NEXT: .cfi_offset %edi, -16
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; ALIGN32-NEXT: .cfi_offset %ebx, -12
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; ALIGN32-NEXT: .cfi_offset %ebp, -8
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; ALIGN32-NEXT: xorl %esi, %esi
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; ALIGN32-NEXT: movl {{[0-9]+}}(%esp), %edi
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; ALIGN32-NEXT: movl {{[0-9]+}}(%esp), %ebx
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; ALIGN32-NEXT: .p2align 4, 0x90
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; ALIGN32-NEXT: .LBB0_1: # %outer
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; ALIGN32-NEXT: # =>This Loop Header: Depth=1
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; ALIGN32-NEXT: # Child Loop BB0_2 Depth 2
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; ALIGN32-NEXT: movl %edi, %ebp
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; ALIGN32-NEXT: .p2align 5, 0x90
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; ALIGN32-NEXT: .LBB0_2: # %inner
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; ALIGN32-NEXT: # Parent Loop BB0_1 Depth=1
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; ALIGN32-NEXT: # => This Inner Loop Header: Depth=2
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; ALIGN32-NEXT: calll foo@PLT
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; ALIGN32-NEXT: decl %ebp
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; ALIGN32-NEXT: jne .LBB0_2
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; ALIGN32-NEXT: # %bb.3: # %outer_bb
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; ALIGN32-NEXT: # in Loop: Header=BB0_1 Depth=1
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; ALIGN32-NEXT: incl %esi
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; ALIGN32-NEXT: cmpl %ebx, %esi
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; ALIGN32-NEXT: jne .LBB0_1
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; ALIGN32-NEXT: # %bb.4: # %exit
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; ALIGN32-NEXT: addl $12, %esp
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; ALIGN32-NEXT: .cfi_def_cfa_offset 20
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; ALIGN32-NEXT: popl %esi
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; ALIGN32-NEXT: .cfi_def_cfa_offset 16
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; ALIGN32-NEXT: popl %edi
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; ALIGN32-NEXT: .cfi_def_cfa_offset 12
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; ALIGN32-NEXT: popl %ebx
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; ALIGN32-NEXT: .cfi_def_cfa_offset 8
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; ALIGN32-NEXT: popl %ebp
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; ALIGN32-NEXT: .cfi_def_cfa_offset 4
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; ALIGN32-NEXT: retl
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;
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; ALIGN64-LABEL: test:
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; ALIGN64: # %bb.0: # %entry
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; ALIGN64-NEXT: pushl %ebp
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; ALIGN64-NEXT: .cfi_def_cfa_offset 8
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; ALIGN64-NEXT: pushl %ebx
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; ALIGN64-NEXT: .cfi_def_cfa_offset 12
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; ALIGN64-NEXT: pushl %edi
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; ALIGN64-NEXT: .cfi_def_cfa_offset 16
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; ALIGN64-NEXT: pushl %esi
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; ALIGN64-NEXT: .cfi_def_cfa_offset 20
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; ALIGN64-NEXT: subl $12, %esp
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; ALIGN64-NEXT: .cfi_def_cfa_offset 32
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; ALIGN64-NEXT: .cfi_offset %esi, -20
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; ALIGN64-NEXT: .cfi_offset %edi, -16
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; ALIGN64-NEXT: .cfi_offset %ebx, -12
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; ALIGN64-NEXT: .cfi_offset %ebp, -8
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; ALIGN64-NEXT: xorl %esi, %esi
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; ALIGN64-NEXT: movl {{[0-9]+}}(%esp), %edi
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; ALIGN64-NEXT: movl {{[0-9]+}}(%esp), %ebx
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; ALIGN64-NEXT: .p2align 5, 0x90
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; ALIGN64-NEXT: .LBB0_1: # %outer
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; ALIGN64-NEXT: # =>This Loop Header: Depth=1
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; ALIGN64-NEXT: # Child Loop BB0_2 Depth 2
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; ALIGN64-NEXT: movl %edi, %ebp
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; ALIGN64-NEXT: .p2align 6, 0x90
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; ALIGN64-NEXT: .LBB0_2: # %inner
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; ALIGN64-NEXT: # Parent Loop BB0_1 Depth=1
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; ALIGN64-NEXT: # => This Inner Loop Header: Depth=2
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; ALIGN64-NEXT: calll foo@PLT
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; ALIGN64-NEXT: decl %ebp
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; ALIGN64-NEXT: jne .LBB0_2
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; ALIGN64-NEXT: # %bb.3: # %outer_bb
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; ALIGN64-NEXT: # in Loop: Header=BB0_1 Depth=1
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; ALIGN64-NEXT: incl %esi
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; ALIGN64-NEXT: cmpl %ebx, %esi
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; ALIGN64-NEXT: jne .LBB0_1
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; ALIGN64-NEXT: # %bb.4: # %exit
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; ALIGN64-NEXT: addl $12, %esp
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; ALIGN64-NEXT: .cfi_def_cfa_offset 20
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; ALIGN64-NEXT: popl %esi
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; ALIGN64-NEXT: .cfi_def_cfa_offset 16
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; ALIGN64-NEXT: popl %edi
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; ALIGN64-NEXT: .cfi_def_cfa_offset 12
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; ALIGN64-NEXT: popl %ebx
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; ALIGN64-NEXT: .cfi_def_cfa_offset 8
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; ALIGN64-NEXT: popl %ebp
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; ALIGN64-NEXT: .cfi_def_cfa_offset 4
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; ALIGN64-NEXT: retl
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entry:
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br label %outer
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outer:
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%outer.iv = phi i32 [0, %entry], [%outer.iv.next, %outer_bb]
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br label %inner
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inner:
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%inner.iv = phi i32 [0, %outer], [%inner.iv.next, %inner]
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call void @foo()
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%inner.iv.next = add i32 %inner.iv, 1
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%inner.cond = icmp ne i32 %inner.iv.next, %m
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br i1 %inner.cond, label %inner, label %outer_bb
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outer_bb:
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%outer.iv.next = add i32 %outer.iv, 1
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%outer.cond = icmp ne i32 %outer.iv.next, %n
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br i1 %outer.cond, label %outer, label %exit
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exit:
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ret void
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}
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