xref: /aosp_15_r20/external/llvm/test/CodeGen/AArch64/remat-float0.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=aarch64-none-linux-gnu -verify-machineinstrs | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; Check that float 0 gets rematerialized with an fmov of zero reg instead
4*9880d681SAndroid Build Coastguard Worker; of spilled/filled.
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdeclare void @bar(float)
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Workerdefine void @foo() {
9*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: foo:
10*9880d681SAndroid Build Coastguard Worker; CHECK: fmov s0, wzr
11*9880d681SAndroid Build Coastguard Worker; CHECK: bl bar
12*9880d681SAndroid Build Coastguard Worker; CHECK: fmov s0, wzr
13*9880d681SAndroid Build Coastguard Worker; CHECK: bl bar
14*9880d681SAndroid Build Coastguard Worker  call void @bar(float 0.000000e+00)
15*9880d681SAndroid Build Coastguard Worker  call void asm sideeffect "", "~{s0},~{s1},~{s2},~{s3},~{s4},~{s5},~{s6},~{s7},~{s8},~{s9},~{s10},~{s11},~{s12},~{s13},~{s14},~{s15},~{s16},~{s17},~{s18},~{s19},~{s20},~{s21},~{s22},~{s23},~{s24},~{s25},~{s26},~{s27},~{s28},~{s29},~{s30},~{s31}"()
16*9880d681SAndroid Build Coastguard Worker  call void @bar(float 0.000000e+00)
17*9880d681SAndroid Build Coastguard Worker  ret void
18*9880d681SAndroid Build Coastguard Worker}
19