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llvm/test/CodeGen/SystemZ/multiselect-02.mir
- This file was added.
# RUN: llc -mtriple=s390x-linux-gnu -mcpu=z10 -run-pass=finalize-isel -o - %s \ | |||||
# RUN: | FileCheck %s | |||||
# | |||||
# Test that an instruction (ZEXT128) that uses custom insertion gets treated | |||||
# correctly also when it lies between two Select instructions that could | |||||
# potentially be handled together. | |||||
# | |||||
# CHECK-LABEL: bb.0.entry: | |||||
# CHECK-NOT: ZEXT128 | |||||
--- | | |||||
declare void @bar(i32) | |||||
define i32 @fun() { entry: ret i32 0 } | |||||
--- | |||||
name: fun | |||||
body: | | |||||
bb.0.entry: | |||||
%1:addr64bit = IMPLICIT_DEF | |||||
%0:gr32bit = LLC %1, 0, $noreg :: (load 1 from `i8* undef`) | |||||
CHI killed %0, 0, implicit-def $cc | |||||
%2:gr32bit = LHI 2 | |||||
%3:gr32bit = LHI 8 | |||||
%4:gr32bit = Select32 killed %3, killed %2, 14, 8, implicit $cc | |||||
%5:gr32bit = LHI 128 | |||||
%7:gr64bit = IMPLICIT_DEF | |||||
%6:gr64bit = INSERT_SUBREG %7, killed %5, %subreg.subreg_l32 | |||||
%8:gr128bit = ZEXT128 killed %6 | |||||
%10:addr64bit = IMPLICIT_DEF | |||||
%9:gr128bit = DL %8, %10, 0, $noreg :: (load 4 from `i64* undef` + 4) | |||||
%11:gr32bit = COPY %9.subreg_l32 | |||||
%12:gr64bit = LGHI 2 | |||||
%13:gr64bit = LGHI 8 | |||||
%14:gr64bit = Select64 killed %13, killed %12, 14, 8, implicit $cc | |||||
CR %4, %11, implicit-def $cc | |||||
%15:gr32bit = Select32 %11, %4, 14, 4, implicit $cc | |||||
ADJCALLSTACKDOWN 0, 0 | |||||
$r2d = COPY %14 | |||||
CallBRASL @bar, $r2d, csr_systemz, implicit-def dead $r14d, implicit-def dead $cc, implicit $fpc | |||||
ADJCALLSTACKUP 0, 0 | |||||
$r2l = COPY %15 | |||||
Return implicit $r2l | |||||
... |