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[GlobalIsel][X86] Support G_INTTOPTR instruction.
Add legalization/selection for x86/x86_64 and corresponding tests. Reviewed By: igorb Differential Revision: https://reviews.llvm.org/D43622 llvm-svn: 326320
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Alexander Ivchenko
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Feb 28, 2018
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | ||
; RUN: llc -mtriple=x86_64-linux-gnu -global-isel -verify-machineinstrs < %s -o - | FileCheck %s --check-prefix=CHECK | ||
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define i64* @inttoptr_p0_s64(i64 %val) { | ||
; CHECK-LABEL: inttoptr_p0_s64: | ||
; CHECK: # %bb.0: # %entry | ||
; CHECK-NEXT: movq %rdi, %rax | ||
; CHECK-NEXT: retq | ||
entry: | ||
%0 = inttoptr i64 %val to i64* | ||
ret i64* %0 | ||
} |
39 changes: 39 additions & 0 deletions
39
llvm/test/CodeGen/X86/GlobalISel/x86-legalize-inttoptr.mir
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py | ||
# RUN: llc -mtriple=i686-linux-gnu -global-isel -run-pass=legalizer -verify-machineinstrs %s -o - | FileCheck %s | ||
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--- | | ||
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define i32* @inttoptr_p0_s32(i32 %val) { | ||
entry: | ||
%0 = inttoptr i32 %val to i32* | ||
ret i32* %0 | ||
} | ||
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... | ||
--- | ||
name: inttoptr_p0_s32 | ||
alignment: 4 | ||
tracksRegLiveness: true | ||
registers: | ||
- { id: 0, class: _ } | ||
- { id: 1, class: _ } | ||
- { id: 2, class: _ } | ||
frameInfo: | ||
maxAlignment: 4 | ||
fixedStack: | ||
- { id: 0, size: 4, alignment: 16, stack-id: 0, isImmutable: true } | ||
body: | | ||
bb.1.entry: | ||
; CHECK-LABEL: name: inttoptr_p0_s32 | ||
; CHECK: [[FRAME_INDEX:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.0 | ||
; CHECK: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[FRAME_INDEX]](p0) :: (invariant load 4 from %fixed-stack.0, align 0) | ||
; CHECK: [[INTTOPTR:%[0-9]+]]:_(p0) = G_INTTOPTR [[LOAD]](s32) | ||
; CHECK: $eax = COPY [[INTTOPTR]](p0) | ||
; CHECK: RET 0, implicit $eax | ||
%1:_(p0) = G_FRAME_INDEX %fixed-stack.0 | ||
%0:_(s32) = G_LOAD %1(p0) :: (invariant load 4 from %fixed-stack.0, align 0) | ||
%2:_(p0) = G_INTTOPTR %0(s32) | ||
$eax = COPY %2(p0) | ||
RET 0, implicit $eax | ||
... |
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py | ||
# RUN: llc -mtriple=i386-linux-gnu -global-isel -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s | ||
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--- | | ||
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define i32* @inttoptr_p0_s32(i32 %val) { | ||
entry: | ||
%0 = inttoptr i32 %val to i32* | ||
ret i32* %0 | ||
} | ||
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... | ||
--- | ||
name: inttoptr_p0_s32 | ||
alignment: 4 | ||
legalized: true | ||
regBankSelected: true | ||
tracksRegLiveness: true | ||
registers: | ||
- { id: 0, class: gpr } | ||
- { id: 1, class: gpr } | ||
- { id: 2, class: gpr } | ||
frameInfo: | ||
maxAlignment: 4 | ||
fixedStack: | ||
- { id: 0, size: 4, alignment: 16, stack-id: 0, isImmutable: true } | ||
body: | | ||
bb.1.entry: | ||
; CHECK-LABEL: name: inttoptr_p0_s32 | ||
; CHECK: [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (invariant load 4 from %fixed-stack.0, align 0) | ||
; CHECK: $eax = COPY [[MOV32rm]] | ||
; CHECK: RET 0, implicit $eax | ||
%1:gpr(p0) = G_FRAME_INDEX %fixed-stack.0 | ||
%0:gpr(s32) = G_LOAD %1(p0) :: (invariant load 4 from %fixed-stack.0, align 0) | ||
%2:gpr(p0) = G_INTTOPTR %0(s32) | ||
$eax = COPY %2(p0) | ||
RET 0, implicit $eax | ||
... |
35 changes: 35 additions & 0 deletions
35
llvm/test/CodeGen/X86/GlobalISel/x86_64-legalize-inttoptr.mir
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@@ -0,0 +1,35 @@ | ||
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py | ||
# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -run-pass=legalizer -verify-machineinstrs %s -o - | FileCheck %s | ||
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--- | | ||
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define i64* @inttoptr_p0_s64(i64 %val) { | ||
entry: | ||
%0 = inttoptr i64 %val to i64* | ||
ret i64* %0 | ||
} | ||
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... | ||
--- | ||
name: inttoptr_p0_s64 | ||
alignment: 4 | ||
tracksRegLiveness: true | ||
registers: | ||
- { id: 0, class: _ } | ||
- { id: 1, class: _ } | ||
body: | | ||
bb.1.entry: | ||
liveins: $rdi | ||
; CHECK-LABEL: name: inttoptr_p0_s64 | ||
; CHECK: liveins: $rdi | ||
; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $rdi | ||
; CHECK: [[INTTOPTR:%[0-9]+]]:_(p0) = G_INTTOPTR [[COPY]](s64) | ||
; CHECK: $rax = COPY [[INTTOPTR]](p0) | ||
; CHECK: RET 0, implicit $rax | ||
%0:_(s64) = COPY $rdi | ||
%1:_(p0) = G_INTTOPTR %0(s64) | ||
$rax = COPY %1(p0) | ||
RET 0, implicit $rax | ||
... |
36 changes: 36 additions & 0 deletions
36
llvm/test/CodeGen/X86/GlobalISel/x86_64-select-inttoptr.mir
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py | ||
# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s | ||
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--- | | ||
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define i64* @inttoptr_p0_s64(i64 %val) { | ||
entry: | ||
%0 = inttoptr i64 %val to i64* | ||
ret i64* %0 | ||
} | ||
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... | ||
--- | ||
name: inttoptr_p0_s64 | ||
alignment: 4 | ||
legalized: true | ||
regBankSelected: true | ||
tracksRegLiveness: true | ||
registers: | ||
- { id: 0, class: gpr } | ||
- { id: 1, class: gpr } | ||
body: | | ||
bb.1.entry: | ||
liveins: $rdi | ||
; CHECK-LABEL: name: inttoptr_p0_s64 | ||
; CHECK: liveins: $rdi | ||
; CHECK: [[COPY:%[0-9]+]]:gr64 = COPY $rdi | ||
; CHECK: $rax = COPY [[COPY]] | ||
; CHECK: RET 0, implicit $rax | ||
%0:gpr(s64) = COPY $rdi | ||
%1:gpr(p0) = G_INTTOPTR %0(s64) | ||
$rax = COPY %1(p0) | ||
RET 0, implicit $rax | ||
... |