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`.
80 lines
1.8 KiB
YAML
80 lines
1.8 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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# Test for correct management of allocatable and non-allocatable
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# live-ins in fastregalloc
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---
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name: live_through_ecx
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: live_through_ecx
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; CHECK: bb.0:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: liveins: $ecx
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; CHECK: NOOP implicit $ecx
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; CHECK: bb.1:
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; CHECK: liveins: $ecx
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; CHECK: RET implicit killed $ecx
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bb.0:
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liveins: $ecx
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NOOP implicit $ecx
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bb.1:
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liveins: $ecx
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RET implicit $ecx
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...
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---
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name: live_out_ecx
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: live_out_ecx
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; CHECK: bb.0:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: liveins: $eax, $ebx
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; CHECK: renamable $ecx = COPY killed $ebx
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; CHECK: bb.1:
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; CHECK: liveins: $ecx
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; CHECK: RET implicit killed $ecx
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bb.0:
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liveins: $eax, $ebx
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%0:gr32 = COPY $eax
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%1:gr32 = COPY $ebx
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$ecx = COPY %1
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bb.1:
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liveins: $ecx
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RET implicit $ecx
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...
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---
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name: live_out_eflags
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: live_out_eflags
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; CHECK: bb.0:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: liveins: $eax, $ebx
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; CHECK: TEST32rr killed renamable $eax, killed renamable $ebx, implicit-def $eflags
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; CHECK: bb.1:
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; CHECK: liveins: $eflags
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; CHECK: RET implicit killed $eflags
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bb.0:
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liveins: $eax, $ebx
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%0:gr32 = COPY $eax
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%1:gr32 = COPY $ebx
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TEST32rr %0, %1, implicit-def $eflags
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bb.1:
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liveins: $eflags
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RET implicit $eflags
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...
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