1cdb8810ce
I am working towards supporting G_INTRINSIC_TRUNC, G_FCEIL and G_FFLOOR. This patch adds isel test for usecase. Ref https://llvm.org/docs/GlobalISel/GenericOpcode.html#g-fceil-g-fsqrt-g-ffloor-g-frint-g-fnearbyint --------- Co-authored-by: mattarde <mattarde@intel.com>
96 lines
3.0 KiB
LLVM
96 lines
3.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc < %s -mtriple=x86_64-linux-gnu | FileCheck %s --check-prefixes=X64,DAG-X64
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; RUN: llc < %s -mtriple=x86_64-linux-gnu -fast-isel | FileCheck %s --check-prefixes=X64,FASTISEL-X64
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; RUN: llc < %s -mtriple=i686-linux-gnu | FileCheck %s --check-prefixes=X86
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; RUN: llc < %s -mtriple=i686-linux-gnu -fast-isel | FileCheck %s --check-prefixes=X86
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; RUN: llc < %s -mtriple=x86_64-linux-gnu -global-isel -global-isel-abort=2 | FileCheck %s --check-prefixes=GISEL-X64
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; RUN: llc < %s -mtriple=i686-linux-gnu -global-isel -global-isel-abort=2 | FileCheck %s --check-prefixes=X86
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define float @trunc_f32(float %a) nounwind readnone {
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; DAG-X64-LABEL: trunc_f32:
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; DAG-X64: # %bb.0:
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; DAG-X64-NEXT: jmp truncf@PLT # TAILCALL
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;
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; FASTISEL-X64-LABEL: trunc_f32:
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; FASTISEL-X64: # %bb.0:
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; FASTISEL-X64-NEXT: pushq %rax
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; FASTISEL-X64-NEXT: callq truncf@PLT
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; FASTISEL-X64-NEXT: popq %rax
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; FASTISEL-X64-NEXT: retq
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;
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; X86-LABEL: trunc_f32:
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; X86: # %bb.0:
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; X86-NEXT: subl $12, %esp
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; X86-NEXT: flds {{[0-9]+}}(%esp)
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; X86-NEXT: fstps (%esp)
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; X86-NEXT: calll truncf
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; X86-NEXT: addl $12, %esp
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; X86-NEXT: retl
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;
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; GISEL-X64-LABEL: trunc_f32:
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; GISEL-X64: # %bb.0:
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; GISEL-X64-NEXT: jmp truncf@PLT # TAILCALL
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%c = call float @llvm.trunc.f32(float %a)
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ret float %c
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}
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define double @trunc_f64(double %a) nounwind readnone {
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; DAG-X64-LABEL: trunc_f64:
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; DAG-X64: # %bb.0:
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; DAG-X64-NEXT: jmp trunc@PLT # TAILCALL
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;
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; FASTISEL-X64-LABEL: trunc_f64:
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; FASTISEL-X64: # %bb.0:
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; FASTISEL-X64-NEXT: pushq %rax
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; FASTISEL-X64-NEXT: callq trunc@PLT
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; FASTISEL-X64-NEXT: popq %rax
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; FASTISEL-X64-NEXT: retq
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;
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; X86-LABEL: trunc_f64:
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; X86: # %bb.0:
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; X86-NEXT: subl $12, %esp
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; X86-NEXT: fldl {{[0-9]+}}(%esp)
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; X86-NEXT: fstpl (%esp)
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; X86-NEXT: calll trunc
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; X86-NEXT: addl $12, %esp
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; X86-NEXT: retl
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;
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; GISEL-X64-LABEL: trunc_f64:
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; GISEL-X64: # %bb.0:
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; GISEL-X64-NEXT: jmp trunc@PLT # TAILCALL
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%c = call double @llvm.trunc.f64(double %a)
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ret double %c
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}
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define x86_fp80 @trunc_f80(x86_fp80 %a) nounwind readnone {
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; X64-LABEL: trunc_f80:
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; X64: # %bb.0:
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; X64-NEXT: subq $24, %rsp
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; X64-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-NEXT: fstpt (%rsp)
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; X64-NEXT: callq truncl@PLT
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; X64-NEXT: addq $24, %rsp
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; X64-NEXT: retq
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;
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; X86-LABEL: trunc_f80:
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; X86: # %bb.0:
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; X86-NEXT: subl $12, %esp
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; X86-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-NEXT: fstpt (%esp)
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; X86-NEXT: calll truncl
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; X86-NEXT: addl $12, %esp
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; X86-NEXT: retl
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;
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; GISEL-X64-LABEL: trunc_f80:
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; GISEL-X64: # %bb.0:
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; GISEL-X64-NEXT: subq $24, %rsp
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; GISEL-X64-NEXT: fldt {{[0-9]+}}(%rsp)
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; GISEL-X64-NEXT: fstpt (%rsp)
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; GISEL-X64-NEXT: callq truncl@PLT
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; GISEL-X64-NEXT: addq $24, %rsp
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; GISEL-X64-NEXT: retq
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%c = call x86_fp80 @llvm.trunc.f80(x86_fp80 %a)
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ret x86_fp80 %c
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}
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