xref: /aosp_15_r20/external/llvm/test/CodeGen/PowerPC/fma-mutate.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; Test several VSX FMA mutation opportunities.  The first one isn't a
2*9880d681SAndroid Build Coastguard Worker; reasonable transformation because the killed product register is the
3*9880d681SAndroid Build Coastguard Worker; same as the FMA target register.  The second one is legal.  The third
4*9880d681SAndroid Build Coastguard Worker; one doesn't fit the feeding-copy pattern.
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -enable-unsafe-fp-math -mattr=+vsx -disable-ppc-vsx-fma-mutation=false | FileCheck %s
7*9880d681SAndroid Build Coastguard Workertarget datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
8*9880d681SAndroid Build Coastguard Workertarget triple = "powerpc64-unknown-linux-gnu"
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdeclare double @llvm.sqrt.f64(double)
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Workerdefine double @foo3(double %a) nounwind {
13*9880d681SAndroid Build Coastguard Worker  %r = call double @llvm.sqrt.f64(double %a)
14*9880d681SAndroid Build Coastguard Worker  ret double %r
15*9880d681SAndroid Build Coastguard Worker
16*9880d681SAndroid Build Coastguard Worker; CHECK: @foo3
17*9880d681SAndroid Build Coastguard Worker; CHECK: xsnmsubadp [[REG:[0-9]+]], {{[0-9]+}}, [[REG]]
18*9880d681SAndroid Build Coastguard Worker; CHECK: xsmaddmdp
19*9880d681SAndroid Build Coastguard Worker; CHECK: xsmaddadp
20*9880d681SAndroid Build Coastguard Worker}
21*9880d681SAndroid Build Coastguard Worker
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