1; NOTE: Assertions have been autogenerated by update_test_checks.py
2; RUN: opt < %s -instcombine -S | FileCheck %s
3
4declare double @fabs(double) readonly
5
6define double @test(double %X) {
7; CHECK-LABEL: @test(
8; CHECK-NEXT:    [[Y:%.*]] = fadd double %X, 0.000000e+00
9; CHECK-NEXT:    ret double [[Y]]
10;
11  %Y = fadd double %X, 0.0          ;; Should be a single add x, 0.0
12  %Z = fadd double %Y, 0.0
13  ret double %Z
14}
15
16define double @test1(double %X) {
17; CHECK-LABEL: @test1(
18; CHECK-NEXT:    [[Y:%.*]] = call double @fabs(double %X)
19; CHECK-NEXT:    ret double [[Y]]
20;
21  %Y = call double @fabs(double %X)
22  %Z = fadd double %Y, 0.0
23  ret double %Z
24}
25