File: pr27343.ll

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (33 lines) | stat: -rw-r--r-- 1,047 bytes parent folder | download | duplicates (16) 
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
26
27
28
29
30
31
32
33
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -passes=instcombine | FileCheck %s

define i32 @__isnan(float %x) alwaysinline nounwind optsize {
; CHECK-LABEL: @__isnan(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[DOTCAST:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT:    [[SHL:%.*]] = shl i32 [[DOTCAST]], 1
; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i32 [[SHL]], -16777216
; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
; CHECK-NEXT:    ret i32 [[CONV]]
;
entry:
  %x.addr = alloca float, align 4
  store float %x, ptr %x.addr, align 4
  %0 = load float, ptr %x.addr, align 4
  %1 = bitcast float %0 to i32
  %shl = shl i32 %1, 1
  %cmp = icmp ugt i32 %shl, -16777216
  %conv = zext i1 %cmp to i32
  ret i32 %conv
}

define i1 @icmp_shl7(i32 %x) {
; CHECK-LABEL: @icmp_shl7(
; CHECK-NEXT:    [[SHL:%.*]] = shl i32 [[X:%.*]], 7
; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[SHL]], 4608
; CHECK-NEXT:    ret i1 [[CMP]]
;
  %shl = shl i32 %x, 7
  %cmp = icmp slt i32 %shl, 4608
  ret i1 %cmp
}