84 lines
2.5 KiB
Text
84 lines
2.5 KiB
Text
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple aarch64 -run-pass=aarch64-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
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...
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---
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name: sextload
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legalized: true
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x0
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; CHECK-LABEL: name: sextload
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; CHECK: liveins: $x0
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; CHECK: %x0:_(p0) = COPY $x0
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; CHECK: %sextload:_(s32) = G_SEXTLOAD %x0(p0) :: (load (s16))
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; CHECK: $w0 = COPY %sextload(s32)
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%x0:_(p0) = COPY $x0
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%sextload:_(s32) = G_SEXTLOAD %x0:_(p0) :: (load (s16))
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%sext_inreg:_(s32) = G_SEXT_INREG %sextload:_(s32), 24
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$w0 = COPY %sext_inreg(s32)
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...
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---
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name: assert_sext
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legalized: true
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $w0
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; The G_ASSERT_SEXT says we already sign extended from 24 bits, so the
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; G_SEXT_INREG is not necessary.
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; CHECK-LABEL: name: assert_sext
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; CHECK: liveins: $w0
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; CHECK: %w0:_(s32) = COPY $w0
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; CHECK: %assert_sext:_(s32) = G_ASSERT_SEXT %w0, 24
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; CHECK: $w0 = COPY %assert_sext(s32)
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%w0:_(s32) = COPY $w0
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%assert_sext:_(s32) = G_ASSERT_SEXT %w0, 24
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%sext_inreg:_(s32) = G_SEXT_INREG %assert_sext:_(s32), 24
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$w0 = COPY %sext_inreg(s32)
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...
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---
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name: assert_sext_greater_width
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legalized: true
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $w0
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; The G_ASSERT_SEXT is from a wider width than the G_SEXT_INREG, so we
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; can't eliminate it.
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; CHECK-LABEL: name: assert_sext_greater_width
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; CHECK: liveins: $w0
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; CHECK: %w0:_(s32) = COPY $w0
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; CHECK: %assert_sext:_(s32) = G_ASSERT_SEXT %w0, 24
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; CHECK: %sext_inreg:_(s32) = G_SEXT_INREG %assert_sext, 12
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; CHECK: $w0 = COPY %sext_inreg(s32)
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%w0:_(s32) = COPY $w0
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%assert_sext:_(s32) = G_ASSERT_SEXT %w0, 24
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%sext_inreg:_(s32) = G_SEXT_INREG %assert_sext:_(s32), 12
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$w0 = COPY %sext_inreg(s32)
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...
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---
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name: assert_sext_smaller_width
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legalized: true
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $w0
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; The G_ASSERT_SEXT is from a smaller width, so the G_SEXT_INREG is not
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; necessary.
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; CHECK-LABEL: name: assert_sext_smaller_width
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; CHECK: liveins: $w0
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; CHECK: %w0:_(s32) = COPY $w0
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; CHECK: %assert_sext:_(s32) = G_ASSERT_SEXT %w0, 8
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; CHECK: $w0 = COPY %assert_sext(s32)
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%w0:_(s32) = COPY $w0
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%assert_sext:_(s32) = G_ASSERT_SEXT %w0, 8
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%sext_inreg:_(s32) = G_SEXT_INREG %assert_sext:_(s32), 12
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$w0 = COPY %sext_inreg(s32)
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...
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