xref: /aosp_15_r20/external/llvm/test/Transforms/InstCombine/fneg-ext.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -instcombine -S < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; CHECK: test1
4*9880d681SAndroid Build Coastguard Workerdefine double @test1(float %a, double %b) nounwind readnone ssp uwtable {
5*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: fsub
6*9880d681SAndroid Build Coastguard Worker; CHECK: fpext
7*9880d681SAndroid Build Coastguard Worker; CHECK: fadd
8*9880d681SAndroid Build Coastguard Worker  %1 = fsub float -0.000000e+00, %a
9*9880d681SAndroid Build Coastguard Worker  %2 = fpext float %1 to double
10*9880d681SAndroid Build Coastguard Worker  %3 = fsub double %b, %2
11*9880d681SAndroid Build Coastguard Worker  ret double %3
12*9880d681SAndroid Build Coastguard Worker}
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Worker; CHECK: test2
15*9880d681SAndroid Build Coastguard Workerdefine double @test2(float %a, double %b) nounwind readnone ssp uwtable {
16*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: fsub
17*9880d681SAndroid Build Coastguard Worker; CHECK: fpext
18*9880d681SAndroid Build Coastguard Worker; CHECK: fadd fast
19*9880d681SAndroid Build Coastguard Worker  %1 = fsub float -0.000000e+00, %a
20*9880d681SAndroid Build Coastguard Worker  %2 = fpext float %1 to double
21*9880d681SAndroid Build Coastguard Worker  %3 = fsub fast double %b, %2
22*9880d681SAndroid Build Coastguard Worker  ret double %3
23*9880d681SAndroid Build Coastguard Worker}
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