| # 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 |
| tracksRegLiveness: true |
| body: | |
| bb.0.entry: |
| %1:addr64bit = IMPLICIT_DEF |
| %0:gr32bit = LLC %1, 0, $noreg :: (load (s8) 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 (s32) 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_elf, implicit-def dead $r14d, implicit-def dead $cc, implicit $fpc |
| ADJCALLSTACKUP 0, 0 |
| $r2l = COPY %15 |
| Return implicit $r2l |
| |
| ... |