89251edefc
The ParallelLoopGenerator class is changed such that GNU OpenMP specific code was removed, allowing to use it as super class in a template-pattern. Therefore, the code has been reorganized and one may not use the ParallelLoopGenerator directly anymore, instead specific implementations have to be provided. These implementations contain the library-specific code. As such, the "GOMP" (code completely taken from the existing backend) and "KMP" variant were created. For "check-polly" all tests that involved "GOMP": equivalents were added that test the new functionalities, like static scheduling and different chunk sizes. "docs/UsingPollyWithClang.rst" shows how the alternative backend may be used. Patch by Michael Halkenhäuser <michaelhalk@web.de> Differential Revision: https://reviews.llvm.org/D59100 llvm-svn: 356434
68 lines
2.0 KiB
LLVM
68 lines
2.0 KiB
LLVM
; RUN: opt %loadPolly -polly-parallel \
|
|
; RUN: -polly-parallel-force -polly-codegen \
|
|
; RUN: -S -verify-dom-info < %s \
|
|
; RUN: | FileCheck %s -check-prefix=IR
|
|
|
|
; RUN: opt %loadPolly -polly-parallel \
|
|
; RUN: -polly-parallel-force -polly-codegen -polly-omp-backend=LLVM \
|
|
; RUN: -S -verify-dom-info < %s \
|
|
; RUN: | FileCheck %s -check-prefix=LIBOMP-IR
|
|
|
|
; RUN: opt %loadPolly -polly-parallel \
|
|
; RUN: -polly-parallel-force -polly-codegen -polly-omp-backend=LLVM \
|
|
; RUN: -polly-scheduling=static \
|
|
; RUN: -S -verify-dom-info < %s \
|
|
; RUN: | FileCheck %s -check-prefix=LIBOMP-STATIC-IR
|
|
|
|
; Ensure the scalars are initialized before the OpenMP code is launched.
|
|
;
|
|
; #define N 1024
|
|
; float A[N];
|
|
;
|
|
; void single_parallel_loop(float alpha) {
|
|
; for (long i = 0; i < N; i++)
|
|
; A[i] = alpha;
|
|
; }
|
|
;
|
|
|
|
; IR-LABEL: polly.start:
|
|
; IR-NEXT: store float %alpha, float* %alpha.s2a
|
|
|
|
; IR: GOMP_parallel_loop_runtime_start
|
|
|
|
; LIBOMP-IR-LABEL: polly.start:
|
|
; LIBOMP-IR-NEXT: store float %alpha, float* %alpha.s2a
|
|
|
|
; LIBOMP-IR: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call
|
|
; LIBOMP-IR: call void @__kmpc_dispatch_init_{{[4|8]}}
|
|
|
|
; LIBOMP-STATIC-IR: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call
|
|
; LIBOMP-STATIC-IR: call void @__kmpc_for_static_init_{{[4|8]}}
|
|
|
|
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"
|
|
|
|
@A = common global [1024 x float] zeroinitializer, align 16
|
|
|
|
define void @single_parallel_loop(float %alpha) nounwind {
|
|
entry:
|
|
br label %for.i
|
|
|
|
for.i:
|
|
%indvar = phi i64 [ %indvar.next, %for.inc], [ 0, %entry ]
|
|
%scevgep = getelementptr [1024 x float], [1024 x float]* @A, i64 0, i64 %indvar
|
|
%exitcond = icmp ne i64 %indvar, 1024
|
|
br i1 %exitcond, label %S, label %exit
|
|
|
|
S:
|
|
%alphaplus = fadd float 1.0, %alpha
|
|
store float %alphaplus, float* %scevgep
|
|
br label %for.inc
|
|
|
|
for.inc:
|
|
%indvar.next = add i64 %indvar, 1
|
|
br label %for.i
|
|
|
|
exit:
|
|
ret void
|
|
}
|