449f2f7140
PowerPC has its custom scheduler heuristic. It calls parent classes' tryCandidate in override version, but the function returns void, so this way doesn't actually help. This patch duplicates code from base scheduler into PPC machine scheduler class, which does what we wanted. Reviewed By: steven.zhang Differential Revision: https://reviews.llvm.org/D94464
93 lines
3.8 KiB
YAML
93 lines
3.8 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 -run-pass=machine-scheduler -o - %s | FileCheck %s
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---
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# Check that machine-scheduler's BotHeightReduce heuristic puts the LD 8 in
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# between the final run of MULLDs and the LDXs that feed them, to try to hide
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# the latency of the LDXs.
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name: test
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: test
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; CHECK: bb.0:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: liveins: $x3, $x4
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; CHECK: [[COPY:%[0-9]+]]:g8rc_and_g8rc_nox0 = COPY $x4
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; CHECK: [[COPY1:%[0-9]+]]:g8rc_and_g8rc_nox0 = COPY $x3
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; CHECK: [[ADDI8_:%[0-9]+]]:g8rc_and_g8rc_nox0 = ADDI8 [[COPY1]], 1
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; CHECK: [[CMPLDI:%[0-9]+]]:crrc = CMPLDI [[COPY]], 1
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; CHECK: [[LI8_:%[0-9]+]]:g8rc_and_g8rc_nox0 = LI8 1
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; CHECK: [[ISEL8_:%[0-9]+]]:g8rc = ISEL8 [[COPY]], [[LI8_]], [[CMPLDI]].sub_gt
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; CHECK: MTCTR8loop [[ISEL8_]], implicit-def dead $ctr8
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; CHECK: [[LI8_1:%[0-9]+]]:g8rc = LI8 0
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; CHECK: [[LI8_2:%[0-9]+]]:g8rc = LI8 2
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; CHECK: [[LI8_3:%[0-9]+]]:g8rc = LI8 3
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; CHECK: [[LI8_4:%[0-9]+]]:g8rc = LI8 5
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; CHECK: [[LI8_5:%[0-9]+]]:g8rc = LI8 6
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; CHECK: [[LI8_6:%[0-9]+]]:g8rc = LI8 7
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; CHECK: bb.1:
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; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000)
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; CHECK: [[LD:%[0-9]+]]:g8rc = LD 0, [[ADDI8_]] :: (load 8)
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; CHECK: [[LDX:%[0-9]+]]:g8rc = LDX [[ADDI8_]], [[LI8_]] :: (load 8)
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; CHECK: [[LDX1:%[0-9]+]]:g8rc = LDX [[ADDI8_]], [[LI8_3]] :: (load 8)
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; CHECK: [[LD1:%[0-9]+]]:g8rc = LD 4, [[ADDI8_]] :: (load 8)
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; CHECK: [[LDX2:%[0-9]+]]:g8rc = LDX [[ADDI8_]], [[LI8_4]] :: (load 8)
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; CHECK: [[LDX3:%[0-9]+]]:g8rc = LDX [[ADDI8_]], [[LI8_5]] :: (load 8)
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; CHECK: [[LDX4:%[0-9]+]]:g8rc = LDX [[ADDI8_]], [[LI8_6]] :: (load 8)
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; CHECK: [[LD2:%[0-9]+]]:g8rc = LD 8, [[ADDI8_]] :: (load 8)
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; CHECK: [[MULLD:%[0-9]+]]:g8rc = MULLD [[LDX]], [[LD]]
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; CHECK: [[LDX5:%[0-9]+]]:g8rc = LDX [[ADDI8_]], [[LI8_2]] :: (load 8)
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; CHECK: [[ADDI8_1:%[0-9]+]]:g8rc = ADDI8 [[ADDI8_]], 1
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; CHECK: [[MULLD1:%[0-9]+]]:g8rc = MULLD [[MULLD]], [[LDX5]]
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; CHECK: [[MULLD2:%[0-9]+]]:g8rc = MULLD [[MULLD1]], [[LDX1]]
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; CHECK: [[MULLD3:%[0-9]+]]:g8rc = MULLD [[MULLD2]], [[LD1]]
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; CHECK: [[MULLD4:%[0-9]+]]:g8rc = MULLD [[MULLD3]], [[LDX2]]
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; CHECK: [[MULLD5:%[0-9]+]]:g8rc = MULLD [[MULLD4]], [[LDX3]]
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; CHECK: [[MULLD6:%[0-9]+]]:g8rc = MULLD [[MULLD5]], [[LDX4]]
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; CHECK: [[MADDLD8_:%[0-9]+]]:g8rc = MADDLD8 [[MULLD6]], [[LD2]], [[MADDLD8_]]
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; CHECK: [[COPY2:%[0-9]+]]:g8rc_and_g8rc_nox0 = COPY [[ADDI8_1]]
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; CHECK: BDNZ8 %bb.1, implicit-def dead $ctr8, implicit $ctr8
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; CHECK: B %bb.2
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; CHECK: bb.2:
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bb.0:
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liveins: $x3, $x4
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%0:g8rc_and_g8rc_nox0 = COPY $x4
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%1:g8rc_and_g8rc_nox0 = COPY $x3
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%2:g8rc_and_g8rc_nox0 = ADDI8 %1, 1
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%3:crrc = CMPLDI %0, 1
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%4:g8rc_and_g8rc_nox0 = LI8 1
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%5:g8rc = ISEL8 %0, %4, %3.sub_gt
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MTCTR8loop %5, implicit-def dead $ctr8
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%6:g8rc = LI8 0
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%7:g8rc = LI8 2
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%8:g8rc = LI8 3
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%9:g8rc = LI8 5
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%10:g8rc = LI8 6
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%11:g8rc = LI8 7
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bb.1:
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%12:g8rc = ADDI8 %2, 1
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%13:g8rc = LD 0, %2 :: (load 8)
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%14:g8rc = LDX %2, %4 :: (load 8)
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%16:g8rc = LDX %2, %8 :: (load 8)
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%17:g8rc = LD 4, %2 :: (load 8)
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%18:g8rc = LDX %2, %9 :: (load 8)
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%19:g8rc = LDX %2, %10 :: (load 8)
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%20:g8rc = LDX %2, %11 :: (load 8)
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%21:g8rc = LD 8, %2 :: (load 8)
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%22:g8rc = MULLD %14, %13
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%15:g8rc = LDX %2, %7 :: (load 8)
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%23:g8rc = MULLD %22, %15
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%24:g8rc = MULLD %23, %16
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%25:g8rc = MULLD %24, %17
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%26:g8rc = MULLD %25, %18
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%27:g8rc = MULLD %26, %19
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%28:g8rc = MULLD %27, %20
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%6:g8rc = MADDLD8 %28, %21, %6
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%2:g8rc_and_g8rc_nox0 = COPY %12
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BDNZ8 %bb.1, implicit-def dead $ctr8, implicit $ctr8
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B %bb.2
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bb.2:
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...
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