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[GlobalISel][X86] Add the support for G_FPTRUNC
Differential Revision: https://reviews.llvm.org/D49855 llvm-svn: 341202
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Alexander Ivchenko
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Aug 31, 2018
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39 changes: 39 additions & 0 deletions
39
llvm/test/CodeGen/X86/GlobalISel/legalize-fptrunc-scalar.mir
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Original file line number | Diff line number | Diff line change |
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py | ||
# RUN: llc -mtriple=x86_64-linux-gnu -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=ALL | ||
--- | | ||
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define float @test_fptrunc(double %in) { | ||
%res = fptrunc double %in to float | ||
ret float %res | ||
} | ||
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... | ||
--- | ||
name: test_fptrunc | ||
alignment: 4 | ||
tracksRegLiveness: true | ||
registers: | ||
- { id: 0, class: _ } | ||
- { id: 1, class: _ } | ||
- { id: 2, class: _ } | ||
- { id: 3, class: _ } | ||
body: | | ||
bb.1 (%ir-block.0): | ||
liveins: $xmm0 | ||
; ALL-LABEL: name: test_fptrunc | ||
; ALL: liveins: $xmm0 | ||
; ALL: [[COPY:%[0-9]+]]:_(s128) = COPY $xmm0 | ||
; ALL: [[TRUNC:%[0-9]+]]:_(s64) = G_TRUNC [[COPY]](s128) | ||
; ALL: [[FPTRUNC:%[0-9]+]]:_(s32) = G_FPTRUNC [[TRUNC]](s64) | ||
; ALL: [[ANYEXT:%[0-9]+]]:_(s128) = G_ANYEXT [[FPTRUNC]](s32) | ||
; ALL: $xmm0 = COPY [[ANYEXT]](s128) | ||
; ALL: RET 0, implicit $xmm0 | ||
%1:_(s128) = COPY $xmm0 | ||
%0:_(s64) = G_TRUNC %1(s128) | ||
%2:_(s32) = G_FPTRUNC %0(s64) | ||
%3:_(s128) = G_ANYEXT %2(s32) | ||
$xmm0 = COPY %3(s128) | ||
RET 0, implicit $xmm0 | ||
... |
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41 changes: 41 additions & 0 deletions
41
llvm/test/CodeGen/X86/GlobalISel/select-fptrunc-scalar.mir
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,41 @@ | ||
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py | ||
# RUN: llc -mtriple=x86_64-linux-gnu -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=ALL | ||
--- | | ||
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define float @test_fptrunc(double %in) { | ||
%res = fptrunc double %in to float | ||
ret float %res | ||
} | ||
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||
... | ||
--- | ||
name: test_fptrunc | ||
alignment: 4 | ||
legalized: true | ||
regBankSelected: true | ||
tracksRegLiveness: true | ||
registers: | ||
- { id: 0, class: vecr } | ||
- { id: 1, class: vecr } | ||
- { id: 2, class: vecr } | ||
- { id: 3, class: vecr } | ||
body: | | ||
bb.1 (%ir-block.0): | ||
liveins: $xmm0 | ||
; ALL-LABEL: name: test_fptrunc | ||
; ALL: liveins: $xmm0 | ||
; ALL: [[COPY:%[0-9]+]]:vr128 = COPY $xmm0 | ||
; ALL: [[COPY1:%[0-9]+]]:fr64 = COPY [[COPY]] | ||
; ALL: [[CVTSD2SSrr:%[0-9]+]]:fr32 = CVTSD2SSrr [[COPY1]] | ||
; ALL: [[COPY2:%[0-9]+]]:vr128 = COPY [[CVTSD2SSrr]] | ||
; ALL: $xmm0 = COPY [[COPY2]] | ||
; ALL: RET 0, implicit $xmm0 | ||
%1:vecr(s128) = COPY $xmm0 | ||
%0:vecr(s64) = G_TRUNC %1(s128) | ||
%2:vecr(s32) = G_FPTRUNC %0(s64) | ||
%3:vecr(s128) = G_ANYEXT %2(s32) | ||
$xmm0 = COPY %3(s128) | ||
RET 0, implicit $xmm0 | ||
... |
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