| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ;RUN: llc < %s -mtriple=i686-- -mattr=-slow-incdec | FileCheck %s -check-prefixes=CHECK,SLOW |
| ;RUN: llc < %s -mtriple=i686-- -mattr=+slow-incdec | FileCheck %s -check-prefixes=CHECK,FAST |
| |
| define void @foo(i32 inreg %dns) minsize { |
| ; CHECK-LABEL: foo: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: xorl %ecx, %ecx |
| ; CHECK-NEXT: decl %ecx |
| ; CHECK-NEXT: .LBB0_1: # %for.body |
| ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; CHECK-NEXT: movzwl %cx, %edx |
| ; CHECK-NEXT: decl %ecx |
| ; CHECK-NEXT: cmpl %eax, %edx |
| ; CHECK-NEXT: jl .LBB0_1 |
| ; CHECK-NEXT: # %bb.2: # %for.end |
| ; CHECK-NEXT: retl |
| entry: |
| br label %for.body |
| |
| for.body: |
| %i.05 = phi i16 [ %dec, %for.body ], [ 0, %entry ] |
| %dec = add i16 %i.05, -1 |
| %conv = zext i16 %dec to i32 |
| %cmp = icmp slt i32 %conv, %dns |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| define void @bar(i32 inreg %dns) minsize { |
| ; CHECK-LABEL: bar: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: xorl %ecx, %ecx |
| ; CHECK-NEXT: incl %ecx |
| ; CHECK-NEXT: .LBB1_1: # %for.body |
| ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; CHECK-NEXT: movzwl %cx, %edx |
| ; CHECK-NEXT: incl %ecx |
| ; CHECK-NEXT: cmpl %eax, %edx |
| ; CHECK-NEXT: jl .LBB1_1 |
| ; CHECK-NEXT: # %bb.2: # %for.end |
| ; CHECK-NEXT: retl |
| entry: |
| br label %for.body |
| |
| for.body: |
| %i.05 = phi i16 [ %inc, %for.body ], [ 0, %entry ] |
| %inc = add i16 %i.05, 1 |
| %conv = zext i16 %inc to i32 |
| %cmp = icmp slt i32 %conv, %dns |
| br i1 %cmp, label %for.body, label %for.end |
| for.end: |
| ret void |
| } |
| |
| define void @foo_optsize(i32 inreg %dns) optsize { |
| ; CHECK-LABEL: foo_optsize: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: xorl %ecx, %ecx |
| ; CHECK-NEXT: decl %ecx |
| ; CHECK-NEXT: .LBB2_1: # %for.body |
| ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; CHECK-NEXT: movzwl %cx, %edx |
| ; CHECK-NEXT: decl %ecx |
| ; CHECK-NEXT: cmpl %eax, %edx |
| ; CHECK-NEXT: jl .LBB2_1 |
| ; CHECK-NEXT: # %bb.2: # %for.end |
| ; CHECK-NEXT: retl |
| entry: |
| br label %for.body |
| |
| for.body: |
| %i.05 = phi i16 [ %dec, %for.body ], [ 0, %entry ] |
| %dec = add i16 %i.05, -1 |
| %conv = zext i16 %dec to i32 |
| %cmp = icmp slt i32 %conv, %dns |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| define void @bar_optsize(i32 inreg %dns) optsize { |
| ; CHECK-LABEL: bar_optsize: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: xorl %ecx, %ecx |
| ; CHECK-NEXT: incl %ecx |
| ; CHECK-NEXT: .LBB3_1: # %for.body |
| ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; CHECK-NEXT: movzwl %cx, %edx |
| ; CHECK-NEXT: incl %ecx |
| ; CHECK-NEXT: cmpl %eax, %edx |
| ; CHECK-NEXT: jl .LBB3_1 |
| ; CHECK-NEXT: # %bb.2: # %for.end |
| ; CHECK-NEXT: retl |
| entry: |
| br label %for.body |
| |
| for.body: |
| %i.05 = phi i16 [ %inc, %for.body ], [ 0, %entry ] |
| %inc = add i16 %i.05, 1 |
| %conv = zext i16 %inc to i32 |
| %cmp = icmp slt i32 %conv, %dns |
| br i1 %cmp, label %for.body, label %for.end |
| for.end: |
| ret void |
| } |
| |
| define void @foo_nosize(i32 inreg %dns) { |
| ; SLOW-LABEL: foo_nosize: |
| ; SLOW: # %bb.0: # %entry |
| ; SLOW-NEXT: movw $-1, %cx |
| ; SLOW-NEXT: .p2align 4, 0x90 |
| ; SLOW-NEXT: .LBB4_1: # %for.body |
| ; SLOW-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; SLOW-NEXT: movzwl %cx, %edx |
| ; SLOW-NEXT: decl %ecx |
| ; SLOW-NEXT: cmpl %eax, %edx |
| ; SLOW-NEXT: jl .LBB4_1 |
| ; SLOW-NEXT: # %bb.2: # %for.end |
| ; SLOW-NEXT: retl |
| ; |
| ; FAST-LABEL: foo_nosize: |
| ; FAST: # %bb.0: # %entry |
| ; FAST-NEXT: movw $-1, %cx |
| ; FAST-NEXT: .p2align 4, 0x90 |
| ; FAST-NEXT: .LBB4_1: # %for.body |
| ; FAST-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; FAST-NEXT: movzwl %cx, %edx |
| ; FAST-NEXT: leal -1(%ecx), %ecx |
| ; FAST-NEXT: cmpl %eax, %edx |
| ; FAST-NEXT: jl .LBB4_1 |
| ; FAST-NEXT: # %bb.2: # %for.end |
| ; FAST-NEXT: retl |
| entry: |
| br label %for.body |
| |
| for.body: |
| %i.05 = phi i16 [ %dec, %for.body ], [ 0, %entry ] |
| %dec = add i16 %i.05, -1 |
| %conv = zext i16 %dec to i32 |
| %cmp = icmp slt i32 %conv, %dns |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| define void @bar_nosize(i32 inreg %dns) { |
| ; SLOW-LABEL: bar_nosize: |
| ; SLOW: # %bb.0: # %entry |
| ; SLOW-NEXT: movw $1, %cx |
| ; SLOW-NEXT: .p2align 4, 0x90 |
| ; SLOW-NEXT: .LBB5_1: # %for.body |
| ; SLOW-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; SLOW-NEXT: movzwl %cx, %edx |
| ; SLOW-NEXT: incl %ecx |
| ; SLOW-NEXT: cmpl %eax, %edx |
| ; SLOW-NEXT: jl .LBB5_1 |
| ; SLOW-NEXT: # %bb.2: # %for.end |
| ; SLOW-NEXT: retl |
| ; |
| ; FAST-LABEL: bar_nosize: |
| ; FAST: # %bb.0: # %entry |
| ; FAST-NEXT: movw $1, %cx |
| ; FAST-NEXT: .p2align 4, 0x90 |
| ; FAST-NEXT: .LBB5_1: # %for.body |
| ; FAST-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; FAST-NEXT: movzwl %cx, %edx |
| ; FAST-NEXT: leal 1(%ecx), %ecx |
| ; FAST-NEXT: cmpl %eax, %edx |
| ; FAST-NEXT: jl .LBB5_1 |
| ; FAST-NEXT: # %bb.2: # %for.end |
| ; FAST-NEXT: retl |
| entry: |
| br label %for.body |
| |
| for.body: |
| %i.05 = phi i16 [ %inc, %for.body ], [ 0, %entry ] |
| %inc = add i16 %i.05, 1 |
| %conv = zext i16 %inc to i32 |
| %cmp = icmp slt i32 %conv, %dns |
| br i1 %cmp, label %for.body, label %for.end |
| for.end: |
| ret void |
| } |