forked from OSchip/llvm-project
271 lines
7.2 KiB
LLVM
271 lines
7.2 KiB
LLVM
; RUN: opt %loadPolly -basicaa -polly-independent < %s -S | FileCheck %s
|
|
; RUN: opt %loadPolly -basicaa -polly-independent -polly-codegen-scev < %s -S | FileCheck %s
|
|
; RUN: opt %loadPolly -basicaa -polly-independent -disable-polly-intra-scop-scalar-to-array -S < %s | FileCheck %s -check-prefix=SCALARACCESS
|
|
; RUN: opt %loadPolly -basicaa -polly-independent -disable-polly-intra-scop-scalar-to-array -polly-codegen-scev < %s -S | FileCheck %s -check-prefix=SCALARACCESS
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
@A = common global [1024 x float] zeroinitializer, align 8
|
|
|
|
define i32 @empty() nounwind {
|
|
entry:
|
|
fence seq_cst
|
|
br label %for.cond
|
|
|
|
for.cond:
|
|
%indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ]
|
|
%exitcond = icmp ne i64 %indvar, 1024
|
|
br i1 %exitcond, label %for.body, label %return
|
|
|
|
for.body:
|
|
br label %for.inc
|
|
|
|
for.inc:
|
|
%indvar.next = add i64 %indvar, 1
|
|
br label %for.cond
|
|
|
|
return:
|
|
fence seq_cst
|
|
ret i32 0
|
|
}
|
|
|
|
|
|
; CHECK: @array_access()
|
|
define i32 @array_access() nounwind {
|
|
entry:
|
|
fence seq_cst
|
|
br label %for.cond
|
|
; CHECK: entry:
|
|
; CHECK-NOT: alloca
|
|
; SCALARACCESS: entry:
|
|
; SCALARACCESS-NOT: alloca
|
|
|
|
for.cond:
|
|
%indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ]
|
|
%exitcond = icmp ne i64 %indvar, 1024
|
|
br i1 %exitcond, label %for.body, label %return
|
|
|
|
for.body:
|
|
%arrayidx = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
%float = uitofp i64 %indvar to float
|
|
store float %float, float* %arrayidx
|
|
br label %for.inc
|
|
|
|
; CHECK: for.body:
|
|
; CHECK: %float = uitofp i64 %indvar to float
|
|
; CHECK: store float %float, float* %arrayidx
|
|
; SCALARACCESS: for.body:
|
|
; SCALARACCESS: %float = uitofp i64 %indvar to float
|
|
; SCALARACCESS: store float %float, float* %arrayidx
|
|
|
|
for.inc:
|
|
%indvar.next = add i64 %indvar, 1
|
|
br label %for.cond
|
|
|
|
return:
|
|
fence seq_cst
|
|
ret i32 0
|
|
}
|
|
|
|
; CHECK: @intra_scop_dep()
|
|
define i32 @intra_scop_dep() nounwind {
|
|
entry:
|
|
fence seq_cst
|
|
br label %for.cond
|
|
|
|
; CHECK: entry:
|
|
; CHECK: %scalar.s2a = alloca float
|
|
; CHECK: fence
|
|
; SCALARACCESS: entry:
|
|
; SCALARACCESS-NOT: alloca
|
|
; SCALARACCESS: fence
|
|
|
|
for.cond:
|
|
%indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ]
|
|
%exitcond = icmp ne i64 %indvar, 1024
|
|
br i1 %exitcond, label %for.body.a, label %return
|
|
|
|
for.body.a:
|
|
%arrayidx = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
%scalar = load float* %arrayidx
|
|
br label %for.body.b
|
|
|
|
; CHECK: for.body.a:
|
|
; CHECK: %arrayidx = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
; CHECK: %scalar = load float* %arrayidx
|
|
; CHECK: store float %scalar, float* %scalar.s2a
|
|
; CHECK: br label %for.body.b
|
|
|
|
; SCALARACCESS: for.body.a:
|
|
; SCALARACCESS: %arrayidx = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
; SCALARACCESS: %scalar = load float* %arrayidx
|
|
; SCALARACCESS-NOT: store
|
|
; SCALARACCESS: br label %for.body.b
|
|
|
|
for.body.b:
|
|
%arrayidx2 = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
%float = uitofp i64 %indvar to float
|
|
%sum = fadd float %scalar, %float
|
|
store float %sum, float* %arrayidx2
|
|
br label %for.inc
|
|
|
|
; CHECK: for.body.b:
|
|
; CHECK: %arrayidx2 = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
; CHECK: %float = uitofp i64 %indvar to float
|
|
; CHECK: %scalar.loadarray = load float* %scalar.s2a
|
|
; CHECK: %sum = fadd float %scalar.loadarray, %float
|
|
; CHECK: store float %sum, float* %arrayidx2
|
|
; CHECK: br label %for.inc
|
|
|
|
; SCALARACCESS: for.body.b:
|
|
; SCALARACCESS: %arrayidx2 = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
; SCALARACCESS: %float = uitofp i64 %indvar to float
|
|
; SCALARACCESS-NOT: load
|
|
; SCALARACCESS: %sum = fadd float %scalar, %float
|
|
; SCALARACCESS: store float %sum, float* %arrayidx2
|
|
; SCALARACCESS: br label %for.inc
|
|
|
|
for.inc:
|
|
%indvar.next = add i64 %indvar, 1
|
|
br label %for.cond
|
|
|
|
return:
|
|
fence seq_cst
|
|
ret i32 0
|
|
}
|
|
|
|
; It is not possible to have a scop which accesses a scalar element that is
|
|
; a global variable. All global variables are pointers containing possibly
|
|
; a single element. Hence they do not need to be handled anyways.
|
|
; Please note that this is still required when scalar to array rewritting is
|
|
; disabled.
|
|
|
|
; CHECK: @use_after_scop()
|
|
define i32 @use_after_scop() nounwind {
|
|
entry:
|
|
fence seq_cst
|
|
br label %for.head
|
|
; CHECK: entry:
|
|
; CHECK: %scalar.s2a = alloca float
|
|
; CHECK: fence
|
|
|
|
; SCALARACCESS: entry:
|
|
; SCALARACCESS: %scalar.s2a = alloca float
|
|
; SCALARACCESS: fence
|
|
|
|
for.head:
|
|
%indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ]
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%arrayidx = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
%scalar = load float* %arrayidx
|
|
br label %for.inc
|
|
|
|
; CHECK: for.body:
|
|
; CHECK: %scalar = load float* %arrayidx
|
|
; CHECK: store float %scalar, float* %scalar.s2a
|
|
|
|
; SCALARACCESS: for.body:
|
|
; SCALARACCESS: %scalar = load float* %arrayidx
|
|
; SCALARACCESS: store float %scalar, float* %scalar.s2a
|
|
|
|
for.inc:
|
|
%indvar.next = add i64 %indvar, 1
|
|
%exitcond = icmp ne i64 %indvar, 1024
|
|
br i1 %exitcond, label %for.head, label %for.after
|
|
|
|
for.after:
|
|
fence seq_cst
|
|
%return_value = fptosi float %scalar to i32
|
|
br label %return
|
|
|
|
; CHECK: for.after:
|
|
; CHECK: %scalar.loadoutside = load float* %scalar.s2a
|
|
; CHECK: fence seq_cst
|
|
; CHECK: %return_value = fptosi float %scalar.loadoutside to i32
|
|
|
|
; SCALARACCESS: for.after:
|
|
; SCALARACCESS: %scalar.loadoutside = load float* %scalar.s2a
|
|
; SCALARACCESS: fence seq_cst
|
|
; SCALARACCESS: %return_value = fptosi float %scalar.loadoutside to i32
|
|
|
|
return:
|
|
ret i32 %return_value
|
|
}
|
|
|
|
; We currently do not transform scalar references, that have only read accesses
|
|
; in the scop. There are two reasons for this:
|
|
;
|
|
; o We don't introduce additional memory references which may yield to compile
|
|
; time overhead.
|
|
; o For integer values, such a translation may block the use of scalar
|
|
; evolution on those values.
|
|
;
|
|
; CHECK: @before_scop()
|
|
define i32 @before_scop() nounwind {
|
|
entry:
|
|
br label %preheader
|
|
|
|
preheader:
|
|
%scalar = fadd float 4.0, 5.0
|
|
fence seq_cst
|
|
br label %for.cond
|
|
|
|
for.cond:
|
|
%indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %preheader ]
|
|
%exitcond = icmp ne i64 %indvar, 1024
|
|
br i1 %exitcond, label %for.body, label %return
|
|
|
|
for.body:
|
|
%arrayidx = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
store float %scalar, float* %arrayidx
|
|
br label %for.inc
|
|
|
|
; CHECK: for.body:
|
|
; CHECK: store float %scalar, float* %arrayidx
|
|
|
|
; SCALARACCESS: for.body:
|
|
; SCALARACCESS: store float %scalar, float* %arrayidx
|
|
|
|
for.inc:
|
|
%indvar.next = add i64 %indvar, 1
|
|
br label %for.cond
|
|
|
|
return:
|
|
fence seq_cst
|
|
ret i32 0
|
|
}
|
|
|
|
; Currently not working
|
|
; CHECK: @param_before_scop(
|
|
define i32 @param_before_scop(float %scalar) nounwind {
|
|
entry:
|
|
fence seq_cst
|
|
br label %for.cond
|
|
; CHECK: entry:
|
|
; CHECK: fence
|
|
|
|
for.cond:
|
|
%indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ]
|
|
%exitcond = icmp ne i64 %indvar, 1024
|
|
br i1 %exitcond, label %for.body, label %return
|
|
|
|
for.body:
|
|
%arrayidx = getelementptr [1024 x float]* @A, i64 0, i64 %indvar
|
|
store float %scalar, float* %arrayidx
|
|
br label %for.inc
|
|
|
|
; CHECK: for.body:
|
|
; CHECK: store float %scalar, float* %arrayidx
|
|
|
|
for.inc:
|
|
%indvar.next = add i64 %indvar, 1
|
|
br label %for.cond
|
|
|
|
return:
|
|
fence seq_cst
|
|
ret i32 0
|
|
}
|