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