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|
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64-apple-darwin -run-pass=regbankselect -verify-machineinstrs %s -o - | FileCheck %s
...
---
name: select_f32
alignment: 4
legalized: true
tracksRegLiveness: true
machineFunctionInfo: {}
body: |
bb.0:
liveins: $s0, $s1, $w0
; CHECK-LABEL: name: select_f32
; CHECK: liveins: $s0, $s1, $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr(s32) = COPY $w0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:fpr(s32) = COPY $s0
; CHECK-NEXT: [[COPY2:%[0-9]+]]:fpr(s32) = COPY $s1
; CHECK-NEXT: [[SELECT:%[0-9]+]]:fpr(s32) = G_SELECT [[COPY]](s32), [[COPY1]], [[COPY2]]
; CHECK-NEXT: $s0 = COPY [[SELECT]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $s0
%3:_(s32) = COPY $w0
%1:_(s32) = COPY $s0
%2:_(s32) = COPY $s1
%4:_(s32) = G_SELECT %3, %1, %2
$s0 = COPY %4(s32)
RET_ReallyLR implicit $s0
...
---
name: select_f64
alignment: 4
legalized: true
tracksRegLiveness: true
machineFunctionInfo: {}
body: |
bb.0:
liveins: $d0, $d1, $w0
; CHECK-LABEL: name: select_f64
; CHECK: liveins: $d0, $d1, $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr(s32) = COPY $w0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:fpr(s64) = COPY $d0
; CHECK-NEXT: [[COPY2:%[0-9]+]]:fpr(s64) = COPY $d1
; CHECK-NEXT: [[SELECT:%[0-9]+]]:fpr(s64) = G_SELECT [[COPY]](s32), [[COPY1]], [[COPY2]]
; CHECK-NEXT: $d0 = COPY [[SELECT]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $d0
%3:_(s32) = COPY $w0
%1:_(s64) = COPY $d0
%2:_(s64) = COPY $d1
%4:_(s64) = G_SELECT %3, %1, %2
$d0 = COPY %4(s64)
RET_ReallyLR implicit $d0
...
---
name: two_fpr_inputs_gpr_output
alignment: 4
legalized: true
tracksRegLiveness: true
machineFunctionInfo: {}
body: |
bb.0:
liveins: $d0, $d1, $w0
; Verify that the G_SELECT only has FPRs.
; The only difference between fcsel and csel are the register banks. So,
; if we have two FPR inputs and a GPR output, we should do a floating point
; select anyway. This will cost one copy for the output, but that's less
; than doing two to put the inputs on GPRs.
; CHECK-LABEL: name: two_fpr_inputs_gpr_output
; CHECK: liveins: $d0, $d1, $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr(s32) = COPY $w0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:fpr(s64) = COPY $d0
; CHECK-NEXT: [[COPY2:%[0-9]+]]:fpr(s64) = COPY $d1
; CHECK-NEXT: [[SELECT:%[0-9]+]]:fpr(s64) = G_SELECT [[COPY]](s32), [[COPY1]], [[COPY2]]
; CHECK-NEXT: $x0 = COPY [[SELECT]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%3:_(s32) = COPY $w0
%1:_(s64) = COPY $d0
%2:_(s64) = COPY $d1
%4:_(s64) = G_SELECT %3, %1, %2
$x0 = COPY %4(s64)
RET_ReallyLR implicit $x0
...
---
name: one_fpr_input_fpr_output
alignment: 4
legalized: true
tracksRegLiveness: true
machineFunctionInfo: {}
body: |
bb.0:
liveins: $d0, $x1, $w0
; Same idea as the above test. If the output is an FPR, and one of the
; inputs is an FPR, then it's fewer copies to just do a FCSEL.
; CHECK-LABEL: name: one_fpr_input_fpr_output
; CHECK: liveins: $d0, $x1, $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr(s32) = COPY $w0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:fpr(s64) = COPY $d0
; CHECK-NEXT: [[COPY2:%[0-9]+]]:gpr(s64) = COPY $x1
; CHECK-NEXT: [[COPY3:%[0-9]+]]:fpr(s64) = COPY [[COPY2]](s64)
; CHECK-NEXT: [[SELECT:%[0-9]+]]:fpr(s64) = G_SELECT [[COPY]](s32), [[COPY1]], [[COPY3]]
; CHECK-NEXT: $d0 = COPY [[SELECT]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $d0
%3:_(s32) = COPY $w0
%1:_(s64) = COPY $d0
%2:_(s64) = COPY $x1
%4:_(s64) = G_SELECT %3, %1, %2
$d0 = COPY %4(s64)
RET_ReallyLR implicit $d0
...
---
name: one_fpr_input_gpr_output
alignment: 4
legalized: true
tracksRegLiveness: true
machineFunctionInfo: {}
body: |
bb.0:
liveins: $d0, $x1, $w0
; Now we have more GPR registers on the G_SELECT. It's cheaper here to put
; everything on GPR.
; CHECK-LABEL: name: one_fpr_input_gpr_output
; CHECK: liveins: $d0, $x1, $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr(s32) = COPY $w0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:fpr(s64) = COPY $d0
; CHECK-NEXT: [[COPY2:%[0-9]+]]:gpr(s64) = COPY $x1
; CHECK-NEXT: [[COPY3:%[0-9]+]]:gpr(s64) = COPY [[COPY1]](s64)
; CHECK-NEXT: [[SELECT:%[0-9]+]]:gpr(s64) = G_SELECT [[COPY]](s32), [[COPY3]], [[COPY2]]
; CHECK-NEXT: $x0 = COPY [[SELECT]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%3:_(s32) = COPY $w0
%1:_(s64) = COPY $d0
%2:_(s64) = COPY $x1
%4:_(s64) = G_SELECT %3, %1, %2
$x0 = COPY %4(s64)
RET_ReallyLR implicit $x0
...
---
name: two_gpr_input_fpr_output
alignment: 4
legalized: true
tracksRegLiveness: true
machineFunctionInfo: {}
body: |
bb.0:
liveins: $x0, $x1, $w0
; Same as above. The G_SELECT should get all GPRS.
; CHECK-LABEL: name: two_gpr_input_fpr_output
; CHECK: liveins: $x0, $x1, $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr(s32) = COPY $w0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr(s64) = COPY $x0
; CHECK-NEXT: [[COPY2:%[0-9]+]]:gpr(s64) = COPY $x1
; CHECK-NEXT: [[SELECT:%[0-9]+]]:gpr(s64) = G_SELECT [[COPY]](s32), [[COPY1]], [[COPY2]]
; CHECK-NEXT: $d0 = COPY [[SELECT]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $d0
%3:_(s32) = COPY $w0
%1:_(s64) = COPY $x0
%2:_(s64) = COPY $x1
%4:_(s64) = G_SELECT %3, %1, %2
$d0 = COPY %4(s64)
RET_ReallyLR implicit $d0
|
