1bc8b3258e
This pull request port `regallocfast` to new pass manager. It exposes the parameter `filter` to handle different register classes for AMDGPU. IIUC AMDGPU need to allocate different register classes separately so it need implement its own `--<reg-class>-regalloc`. Now users can use e.g. `-passe=regallocfast<filter=sgpr>` to allocate specific register class. The command line option `--regalloc-npm` is still in work progress, plan to reuse the syntax of passes, e.g. use `--regalloc-npm=regallocfast<filter=sgpr>,greedy<filter=vgpr>` to replace `--sgpr-regalloc` and `--vgpr-regalloc`.
47 lines
2.2 KiB
YAML
47 lines
2.2 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple=i386-unknown-linux-musl -verify-machineinstrs -run-pass=regallocfast -o - %s | FileCheck %s
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# RUN: llc -mtriple=i386-unknown-linux-musl -verify-machineinstrs -passes=regallocfast -o - %s | FileCheck %s
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# Make sure this case doesn't assert or try to assign $ecx to %1 on
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# SHRD32rrCL
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---
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name: foo
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tracksRegLiveness: true
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body: |
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bb.0:
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; CHECK-LABEL: name: foo
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; CHECK: renamable $eax = IMPLICIT_DEF
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; CHECK: renamable $edx = MOVZX32rm8 renamable $eax, 1, $noreg, 0, $noreg :: (load (s8) from `ptr undef` + 20, align 4, basealign 16)
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; CHECK: dead renamable $ecx = MOV32rm renamable $eax, 1, $noreg, 0, $noreg :: (load (s32) from `ptr undef` + 12, basealign 16)
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; CHECK: renamable $al = MOV8rm killed renamable $eax, 1, $noreg, 0, $noreg :: (load (s8) from `ptr undef`, align 4)
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; CHECK: dead renamable $ecx = COPY renamable $edx
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; CHECK: dead renamable $ecx = COPY renamable $edx
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; CHECK: dead renamable $ecx = COPY renamable $edx
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; CHECK: renamable $esi = IMPLICIT_DEF
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; CHECK: renamable $ecx = IMPLICIT_DEF
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; CHECK: renamable $ecx = CMOV32rr renamable $ecx, killed renamable $esi, 2, implicit undef $eflags
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; CHECK: renamable $cl = MOV8ri -128
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; CHECK: $cl = IMPLICIT_DEF
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; CHECK: renamable $eax = COPY renamable $edx
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; CHECK: dead renamable $eax = SHRD32rrCL renamable $eax, killed renamable $edx, implicit-def dead $eflags, implicit killed $cl
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; CHECK: RET32
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%0:gr32 = IMPLICIT_DEF
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%1:gr32 = MOVZX32rm8 %0, 1, $noreg, 0, $noreg :: (load (s8) from `ptr undef` + 20, align 4, basealign 16)
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%2:gr32 = MOV32rm %0, 1, $noreg, 0, $noreg :: (load (s32) from `ptr undef` + 12, basealign 16)
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%3:gr8 = MOV8rm %0, 1, $noreg, 0, $noreg :: (load (s8) from `ptr undef`, align 4)
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%4:gr32 = COPY %1
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%5:gr32 = COPY %1
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%6:gr32 = COPY %1
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%7:gr32 = IMPLICIT_DEF
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%8:gr32 = IMPLICIT_DEF
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%8:gr32 = CMOV32rr %8, killed %7, 2, implicit undef $eflags
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%9:gr8 = MOV8ri -128
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%9:gr8 = COPY %3
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$cl = IMPLICIT_DEF
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%8:gr32 = COPY %1
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%8:gr32 = SHRD32rrCL %8, %1, implicit-def dead $eflags, implicit $cl
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RET32
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...
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