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
}
|
