75 lines
2.5 KiB
Plaintext
75 lines
2.5 KiB
Plaintext
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs -mtriple aarch64-unknown-unknown %s -o - | FileCheck %s
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# RUN: llc -debugify-and-strip-all-safe -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs -mtriple aarch64-unknown-unknown %s -o - | FileCheck %s
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...
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---
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name: fconstant_to_constant_s32
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alignment: 4
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tracksRegLiveness: true
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frameInfo:
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maxAlignment: 1
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machineFunctionInfo: {}
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body: |
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bb.0:
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liveins: $x0
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; Only feeding into stores here. Also, the value can't be materialized using
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; fmov, so it's strictly better to use a mov.
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; CHECK-LABEL: name: fconstant_to_constant_s32
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; CHECK: liveins: $x0
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; CHECK: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
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; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1028443341
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; CHECK: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 524
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; CHECK: [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[COPY]], [[C1]](s64)
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; CHECK: G_STORE [[C]](s32), [[PTR_ADD]](p0) :: (store 4)
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; CHECK: RET_ReallyLR
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%0:_(p0) = COPY $x0
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%3:_(s32) = G_FCONSTANT float 0x3FA99999A0000000
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%1:_(s64) = G_CONSTANT i64 524
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%2:_(p0) = G_PTR_ADD %0, %1(s64)
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G_STORE %3(s32), %2(p0) :: (store 4)
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RET_ReallyLR
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...
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---
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name: fconstant_to_constant_s64
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alignment: 4
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tracksRegLiveness: true
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frameInfo:
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maxAlignment: 1
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machineFunctionInfo: {}
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body: |
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bb.0:
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liveins: $x0
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; CHECK-LABEL: name: fconstant_to_constant_s64
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; CHECK: liveins: $x0
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; CHECK: %ptr:_(p0) = COPY $x0
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; CHECK: %c:_(s64) = G_CONSTANT i64 0
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; CHECK: G_STORE %c(s64), %ptr(p0) :: (store 8)
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; CHECK: RET_ReallyLR
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%ptr:_(p0) = COPY $x0
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%c:_(s64) = G_FCONSTANT double 0.0
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G_STORE %c(s64), %ptr(p0) :: (store 8)
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RET_ReallyLR
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...
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---
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name: no_store_means_no_combine
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alignment: 4
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tracksRegLiveness: true
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frameInfo:
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maxAlignment: 1
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machineFunctionInfo: {}
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body: |
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bb.0:
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liveins: $x0, $x1
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; When we aren't feeding into a store, the combine shouldn't happen.
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; CHECK-LABEL: name: no_store_means_no_combine
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; CHECK: liveins: $x0, $x1
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; CHECK: %v:_(s64) = COPY $x0
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; CHECK: %c:_(s64) = G_FCONSTANT double 0.000000e+00
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; CHECK: %add:_(s64) = G_FADD %v, %c
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; CHECK: RET_ReallyLR implicit %add(s64)
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%v:_(s64) = COPY $x0
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%c:_(s64) = G_FCONSTANT double 0.0
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%add:_(s64) = G_FADD %v, %c
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RET_ReallyLR implicit %add
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...
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