File: zero-point-zero-add.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (24 lines) | stat: -rw-r--r-- 667 bytes parent folder | download | duplicates (13) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
; NOTE: Assertions have been autogenerated by update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

declare double @fabs(double) readonly

define double @test(double %X) {
; CHECK-LABEL: @test(
; CHECK-NEXT:    [[Y:%.*]] = fadd double %X, 0.000000e+00
; CHECK-NEXT:    ret double [[Y]]
;
  %Y = fadd double %X, 0.0          ;; Should be a single add x, 0.0
  %Z = fadd double %Y, 0.0
  ret double %Z
}

define double @test1(double %X) {
; CHECK-LABEL: @test1(
; CHECK-NEXT:    [[Y:%.*]] = call double @llvm.fabs.f64(double %X)
; CHECK-NEXT:    ret double [[Y]]
;
  %Y = call double @fabs(double %X)
  %Z = fadd double %Y, 0.0
  ret double %Z
}