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Allow side-effect free function calls in valid affine SCEVs Side-effect free function calls with only constant parameters can be easily re-generated and consequently do not prevent us from modeling a SCEV. This change allows array subscripts to reference function calls such as 'get_global_id()' as used in OpenCL. We use the function name plus the constant operands to name the parameter. This is possible as the function name is required and is not dropped in release builds the same way names of llvm::Values are dropped. We also provide more readable names for common OpenCL functions, to make it easy to understand the polyhedral model we generate. llvm-svn: 304074
2017-05-27 23:18:46 +08:00
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; CHECK: Context:
; CHECK-NEXT: [__global_id_0] -> { : -9223372036854775808 <= __global_id_0 <= 9223372036854775807 }
; CHECK-NEXT: Assumed Context:
; CHECK-NEXT: [__global_id_0] -> { : }
; CHECK-NEXT: Invalid Context:
Update isl to isl-0.18-1047-g4a20ef8 This update: - Removes several deprecated functions (e.g., isl_band). - Improves the pretty-printing of sets by detecting modulos and "false" equalities. - Minor improvements to coalescing and increased robustness of the isl scheduler. This update does not yet include isl commit isl-0.18-90-gd00cb45 (isl_pw_*_alloc: add missing check for compatible spaces, Wed Sep 6 12:18:04 2017 +0200), as this additional check is too tight and unfortunately causes two test case failures in Polly. A patch has been submitted to isl and will be included in the next isl update for Polly. llvm-svn: 325557
2018-02-20 15:26:42 +08:00
; CHECK-NEXT: [__global_id_0] -> { : false }
Allow side-effect free function calls in valid affine SCEVs Side-effect free function calls with only constant parameters can be easily re-generated and consequently do not prevent us from modeling a SCEV. This change allows array subscripts to reference function calls such as 'get_global_id()' as used in OpenCL. We use the function name plus the constant operands to name the parameter. This is possible as the function name is required and is not dropped in release builds the same way names of llvm::Values are dropped. We also provide more readable names for common OpenCL functions, to make it easy to understand the polyhedral model we generate. llvm-svn: 304074
2017-05-27 23:18:46 +08:00
; CHECK-NEXT: p0: %__global_id_0
; CHECK-NEXT: Arrays {
; CHECK-NEXT: i64 MemRef_A[*]; // Element size 8
; CHECK-NEXT: }
; CHECK-NEXT: Arrays (Bounds as pw_affs) {
; CHECK-NEXT: i64 MemRef_A[*]; // Element size 8
; CHECK-NEXT: }
; CHECK-NEXT: Alias Groups (0):
; CHECK-NEXT: n/a
; CHECK-NEXT: Statements {
; CHECK-NEXT: Stmt_bb
; CHECK-NEXT: Domain :=
; CHECK-NEXT: [__global_id_0] -> { Stmt_bb[] };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: [__global_id_0] -> { Stmt_bb[] -> [] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [__global_id_0] -> { Stmt_bb[] -> MemRef_A[__global_id_0] };
; CHECK-NEXT: }
define void @globalid(i64* nocapture %A) local_unnamed_addr #0 !kernel_arg_addr_space !2 !kernel_arg_access_qual !3 !kernel_arg_type !4 !kernel_arg_base_type !4 !kernel_arg_type_qual !5 {
entry:
br label %next
next:
br i1 true, label %bb, label %exit
bb:
%__global_id_0 = tail call i64 @_Z13get_global_idj(i32 0) #2
%arrayidx = getelementptr inbounds i64, i64* %A, i64 %__global_id_0
store i64 0, i64* %arrayidx, align 8, !tbaa !6
br label %exit
exit:
ret void
}
; Function Attrs: nounwind readnone
declare i64 @_Z13get_global_idj(i32) local_unnamed_addr #1
attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-__global_id_0s"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-__global_id_0s"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { nounwind readnone }
!llvm.module.flags = !{!0}
!llvm.ident = !{!1}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{!"clang version 5.0.0 (trunk 303846) (llvm/trunk 303834)"}
!2 = !{i32 1}
!3 = !{!"none"}
!4 = !{!"long*"}
!5 = !{!""}
!6 = !{!7, !7, i64 0}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}