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| ; 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: addl $-1, %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: addl $1, %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
}
|