File: signed-comparison.ll

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (25 lines) | stat: -rw-r--r-- 757 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

; Convert the zext+slt into a simple ult.

define i1 @scalar_zext_slt(i16 %t4) {
; CHECK-LABEL: @scalar_zext_slt(
; CHECK-NEXT:    [[T6:%.*]] = icmp ult i16 [[T4:%.*]], 500
; CHECK-NEXT:    ret i1 [[T6]]
;
  %t5 = zext i16 %t4 to i32
  %t6 = icmp slt i32 %t5, 500
  ret i1 %t6
}

define <4 x i1> @vector_zext_slt(<4 x i16> %t4) {
; CHECK-LABEL: @vector_zext_slt(
; CHECK-NEXT:    [[T6:%.*]] = icmp ult <4 x i16> [[T4:%.*]], <i16 500, i16 0, i16 501, i16 -1>
; CHECK-NEXT:    ret <4 x i1> [[T6]]
;
  %t5 = zext <4 x i16> %t4 to <4 x i32>
  %t6 = icmp slt <4 x i32> %t5, <i32 500, i32 0, i32 501, i32 65535>
  ret <4 x i1> %t6
}