1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -instcombine < %s | FileCheck %s
3
4@Q = internal unnamed_addr global double 1.000000e+00, align 8
5
6define double @test(i1 %c, i64* %p) {
7; CHECK-LABEL: @test(
8; CHECK-NEXT:  entry:
9; CHECK-NEXT:    br i1 [[C:%.*]], label [[IF:%.*]], label [[END:%.*]]
10; CHECK:       if:
11; CHECK-NEXT:    [[LOAD1:%.*]] = load double, double* @Q, align 8
12; CHECK-NEXT:    br label [[END]]
13; CHECK:       end:
14; CHECK-NEXT:    [[TMP0:%.*]] = phi double [ 0.000000e+00, [[ENTRY:%.*]] ], [ [[LOAD1]], [[IF]] ]
15; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i64* [[P:%.*]] to double*
16; CHECK-NEXT:    store double [[TMP0]], double* [[TMP1]], align 8
17; CHECK-NEXT:    ret double [[TMP0]]
18;
19entry:
20  br i1 %c, label %if, label %end
21
22if:
23  %load = load i64, i64* bitcast (double* @Q to i64*), align 8
24  br label %end
25
26end:
27  %phi = phi i64 [ 0, %entry ], [ %load, %if ]
28  store i64 %phi, i64* %p, align 8
29  %cast = bitcast i64 %phi to double
30  ret double %cast
31
32  uselistorder i64 %phi, { 1, 0 }
33}
34