| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=i686-pc-linux-gnu | FileCheck %s -check-prefix=DEFAULT |
| ; RUN: llc < %s -mtriple=i686-pc-linux-gnu -x86-experimental-pref-innermost-loop-alignment=5 | FileCheck %s -check-prefix=ALIGN32 |
| ; RUN: llc < %s -mtriple=i686-pc-linux-gnu -x86-experimental-pref-loop-alignment=5 -x86-experimental-pref-innermost-loop-alignment=6 | FileCheck %s -check-prefix=ALIGN64 |
| |
| declare void @foo() |
| |
| define void @test(i32 %n, i32 %m) { |
| ; DEFAULT-LABEL: test: |
| ; DEFAULT: .p2align 4, 0x90 |
| ; DEFAULT-NEXT: .LBB0_1: # %outer |
| ; DEFAULT-NEXT: # =>This Loop Header: Depth=1 |
| ; DEFAULT-NEXT: # Child Loop BB0_2 Depth 2 |
| ; DEFAULT: .p2align 4, 0x90 |
| ; DEFAULT-NEXT: .LBB0_2: # %inner |
| ; DEFAULT-NEXT: # Parent Loop BB0_1 Depth=1 |
| |
| ; ALIGN32-LABEL: test: |
| ; ALIGN32: .p2align 4, 0x90 |
| ; ALIGN32-NEXT: .LBB0_1: # %outer |
| ; ALIGN32-NEXT: # =>This Loop Header: Depth=1 |
| ; ALIGN32-NEXT: # Child Loop BB0_2 Depth 2 |
| ; ALIGN32: .p2align 5, 0x90 |
| ; ALIGN32-NEXT: .LBB0_2: # %inner |
| ; ALIGN32-NEXT: # Parent Loop BB0_1 Depth=1 |
| ; ALIGN32-NEXT: # => This Inner Loop Header: Depth=2 |
| |
| ; ALIGN64-LABEL: test: |
| ; ALIGN64: .p2align 5, 0x90 |
| ; ALIGN64-NEXT: .LBB0_1: # %outer |
| ; ALIGN64-NEXT: # =>This Loop Header: Depth=1 |
| ; ALIGN64-NEXT: # Child Loop BB0_2 Depth 2 |
| ; ALIGN64: .p2align 6, 0x90 |
| ; ALIGN64-NEXT: .LBB0_2: # %inner |
| ; ALIGN64-NEXT: # Parent Loop BB0_1 Depth=1 |
| ; ALIGN64-NEXT: # => This Inner Loop Header: Depth=2 |
| |
| entry: |
| br label %outer |
| |
| outer: |
| %outer.iv = phi i32 [0, %entry], [%outer.iv.next, %outer_bb] |
| br label %inner |
| |
| inner: |
| %inner.iv = phi i32 [0, %outer], [%inner.iv.next, %inner] |
| call void @foo() |
| %inner.iv.next = add i32 %inner.iv, 1 |
| %inner.cond = icmp ne i32 %inner.iv.next, %m |
| br i1 %inner.cond, label %inner, label %outer_bb |
| |
| outer_bb: |
| %outer.iv.next = add i32 %outer.iv, 1 |
| %outer.cond = icmp ne i32 %outer.iv.next, %n |
| br i1 %outer.cond, label %outer, label %exit |
| |
| exit: |
| ret void |
| } |