caio/clang-p2996
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
9325b8da1702238f15f837b6e07f099baf4dcd94
clang-p2996/llvm/test/Transforms/OpenMP/parallel_deletion.ll
Nikita Popov 5d12b976b0 [ValueTracking] Don't assume readonly function will return 
This is similar to D94106, but for the
isGuaranteedToTransferExecutionToSuccessor() helper. We should not
assume that readonly functions will return, as this is only true for
mustprogress functions (in which case we already infer willreturn).
As with the DCE change, for now continue assuming that readonly
intrinsics will return, as not all target intrinsics have been
annotated yet.

Differential Revision: https://reviews.llvm.org/D95288
2021-01-24 10:40:21 +01:00

450 lines
24 KiB
LLVM
Raw Blame History

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
; RUN: opt -S -attributor -openmpopt < %s | FileCheck %s
; RUN: opt -S -passes='attributor,cgscc(openmpopt)' < %s | FileCheck %s
;
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
%struct.ident_t = type { i32, i32, i32, i32, i8* }
@.str = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00", align 1
@0 = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0) }, align 8
@1 = private unnamed_addr global %struct.ident_t { i32 0, i32 322, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0) }, align 8
@.gomp_critical_user_.reduction.var = common global [8 x i32] zeroinitializer
@2 = private unnamed_addr global %struct.ident_t { i32 0, i32 18, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0) }, align 8
; void delete_parallel_0(void) {
; #pragma omp parallel
; { unknown_willreturn(); }
; #pragma omp parallel
; { readonly_willreturn(); }
; #pragma omp parallel
; { readnone_willreturn(); }
; #pragma omp parallel
; {}
; }
;
; We delete all but the first of the parallel regions in this test.
define void @delete_parallel_0() {
; CHECK-LABEL: define {{[^@]+}}@delete_parallel_0() {
; CHECK-NEXT: entry:
; CHECK-NEXT: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0:@.*]], i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined.willreturn to void (i32*, i32*, ...)*))
; CHECK-NEXT: ret void
;
entry:
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined.willreturn to void (i32*, i32*, ...)*))
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined.willreturn.0 to void (i32*, i32*, ...)*))
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined.willreturn.1 to void (i32*, i32*, ...)*))
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined.willreturn.2 to void (i32*, i32*, ...)*))
ret void
}
define internal void @.omp_outlined.willreturn(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.willreturn
; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR0:#.*]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @unknown() [[ATTR0]]
; CHECK-NEXT: ret void
;
entry:
call void @unknown() willreturn
ret void
}
define internal void @.omp_outlined.willreturn.0(i32* noalias %.global_tid., i32* noalias %.bound_tid.) willreturn {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.willreturn.0
; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR1:#.*]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @readonly() [[ATTR4:#.*]]
; CHECK-NEXT: ret void
;
entry:
call void @readonly()
ret void
}
define internal void @.omp_outlined.willreturn.1(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.willreturn.1
; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR2:#.*]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @readnone() [[ATTR0]]
; CHECK-NEXT: ret void
;
entry:
call void @readnone() willreturn
ret void
}
define internal void @.omp_outlined.willreturn.2(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.willreturn.2
; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR3:#.*]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: ret void
;
entry:
ret void
}
; void delete_parallel_1(void) {
; #pragma omp parallel
; { unknown(); }
; #pragma omp parallel
; { readonly(); }
; #pragma omp parallel
; { readnone(); }
; #pragma omp parallel
; {}
; }
;
; We delete only the last parallel regions in this test because the others might not return.
define void @delete_parallel_1() {
; CHECK-LABEL: define {{[^@]+}}@delete_parallel_1() {
; CHECK-NEXT: entry:
; CHECK-NEXT: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0]], i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined. to void (i32*, i32*, ...)*))
; CHECK-NEXT: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0]], i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined..0 to void (i32*, i32*, ...)*))
; CHECK-NEXT: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0]], i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined..1 to void (i32*, i32*, ...)*))
; CHECK-NEXT: ret void
;
entry:
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined. to void (i32*, i32*, ...)*))
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined..0 to void (i32*, i32*, ...)*))
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined..1 to void (i32*, i32*, ...)*))
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined..2 to void (i32*, i32*, ...)*))
ret void
}
define internal void @.omp_outlined.(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.
; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @unknown()
; CHECK-NEXT: ret void
;
entry:
call void @unknown()
ret void
}
define internal void @.omp_outlined..0(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..0
; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR4]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @readonly() [[ATTR4]]
; CHECK-NEXT: ret void
;
entry:
call void @readonly()
ret void
}
define internal void @.omp_outlined..1(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..1
; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR5:#.*]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @readnone()
; CHECK-NEXT: ret void
;
entry:
call void @readnone()
ret void
}
define internal void @.omp_outlined..2(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..2
; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR3]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: ret void
;
entry:
ret void
}
; void delete_parallel_2(void) {
; int a = 0;
; #pragma omp parallel
; {
; if (omp_get_thread_num() == 0)
; ++a;
; }
; #pragma omp parallel
; {
; #pragma omp master
; ++a;
; }
; #pragma omp parallel
; {
; #pragma omp single
; ++a;
; }
; #pragma omp parallel reduction(+: a)
; {
; ++a;
; }
; }
;
; FIXME: We do not realize that `a` is dead and all accesses to it can be removed
; making the parallel regions readonly and deletable.
define void @delete_parallel_2() {
; CHECK-LABEL: define {{[^@]+}}@delete_parallel_2() {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[TMP:%.*]] = bitcast i32* [[A]] to i8*
; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noundef nonnull align 4 dereferenceable(4) [[TMP]]) [[ATTR0]]
; CHECK-NEXT: store i32 0, i32* [[A]], align 4
; CHECK-NEXT: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0]], i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..3 to void (i32*, i32*, ...)*), i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A]])
; CHECK-NEXT: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0]], i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..4 to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A]])
; CHECK-NEXT: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0]], i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..5 to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A]])
; CHECK-NEXT: call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0]], i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..6 to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A]])
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[A]] to i8*
; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* noundef nonnull [[TMP1]])
; CHECK-NEXT: ret void
;
entry:
%a = alloca i32, align 4
%tmp = bitcast i32* %a to i8*
call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %tmp)
store i32 0, i32* %a, align 4
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* @.omp_outlined..3 to void (i32*, i32*, ...)*), i32* nonnull %a)
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* @.omp_outlined..4 to void (i32*, i32*, ...)*), i32* nonnull %a)
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* @.omp_outlined..5 to void (i32*, i32*, ...)*), i32* nonnull %a)
call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* @.omp_outlined..6 to void (i32*, i32*, ...)*), i32* nonnull %a)
%tmp1 = bitcast i32* %a to i8*
call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %tmp1)
ret void
}
define internal void @.omp_outlined..3(i32* noalias %.global_tid., i32* noalias %.bound_tid., i32* dereferenceable(4) %a) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..3
; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A:%.*]]) [[ATTR6:#.*]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CALL:%.*]] = call i32 @omp_get_thread_num() [[ATTR12:#.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[TMP:%.*]] = load i32, i32* [[A]], align 4
; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[TMP]], 1
; CHECK-NEXT: store i32 [[INC]], i32* [[A]], align 4
; CHECK-NEXT: br label [[IF_END]]
; CHECK: if.end:
; CHECK-NEXT: ret void
;
entry:
%call = call i32 @omp_get_thread_num()
%cmp = icmp eq i32 %call, 0
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
%tmp = load i32, i32* %a, align 4
%inc = add nsw i32 %tmp, 1
store i32 %inc, i32* %a, align 4
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define internal void @.omp_outlined..4(i32* noalias %.global_tid., i32* noalias %.bound_tid., i32* dereferenceable(4) %a) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..4
; CHECK-SAME: (i32* noalias nocapture nonnull readonly align 4 dereferenceable(4) [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @__kmpc_master(%struct.ident_t* noundef nonnull [[GLOB0]], i32 [[TMP]])
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0
; CHECK-NEXT: br i1 [[TMP2]], label [[OMP_IF_END:%.*]], label [[OMP_IF_THEN:%.*]]
; CHECK: omp_if.then:
; CHECK-NEXT: [[TMP3:%.*]] = load i32, i32* [[A]], align 4
; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[TMP3]], 1
; CHECK-NEXT: store i32 [[INC]], i32* [[A]], align 4
; CHECK-NEXT: call void @__kmpc_end_master(%struct.ident_t* noundef nonnull [[GLOB0]], i32 [[TMP]])
; CHECK-NEXT: br label [[OMP_IF_END]]
; CHECK: omp_if.end:
; CHECK-NEXT: ret void
;
entry:
%tmp = load i32, i32* %.global_tid., align 4
%tmp1 = call i32 @__kmpc_master(%struct.ident_t* nonnull @0, i32 %tmp)
%tmp2 = icmp eq i32 %tmp1, 0
br i1 %tmp2, label %omp_if.end, label %omp_if.then
omp_if.then: ; preds = %entry
%tmp3 = load i32, i32* %a, align 4
%inc = add nsw i32 %tmp3, 1
store i32 %inc, i32* %a, align 4
call void @__kmpc_end_master(%struct.ident_t* nonnull @0, i32 %tmp)
br label %omp_if.end
omp_if.end: ; preds = %entry, %omp_if.then
ret void
}
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture)
declare i32 @omp_get_thread_num() inaccessiblememonly nofree nosync nounwind readonly
declare i32 @__kmpc_master(%struct.ident_t*, i32)
declare void @__kmpc_end_master(%struct.ident_t*, i32)
define internal void @.omp_outlined..5(i32* noalias %.global_tid., i32* noalias %.bound_tid., i32* dereferenceable(4) %a) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..5
; CHECK-SAME: (i32* noalias nocapture readonly [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[OMP_GLOBAL_THREAD_NUM:%.*]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* noundef nonnull [[GLOB0]]) [[ATTR12]]
; CHECK-NEXT: [[TMP:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @__kmpc_single(%struct.ident_t* noundef nonnull [[GLOB0]], i32 [[TMP]])
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0
; CHECK-NEXT: br i1 [[TMP2]], label [[OMP_IF_END:%.*]], label [[OMP_IF_THEN:%.*]]
; CHECK: omp_if.then:
; CHECK-NEXT: [[TMP3:%.*]] = load i32, i32* [[A]], align 4
; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[TMP3]], 1
; CHECK-NEXT: store i32 [[INC]], i32* [[A]], align 4
; CHECK-NEXT: call void @__kmpc_end_single(%struct.ident_t* noundef nonnull [[GLOB0]], i32 [[TMP]])
; CHECK-NEXT: br label [[OMP_IF_END]]
; CHECK: omp_if.end:
; CHECK-NEXT: call void @__kmpc_barrier(%struct.ident_t* noundef nonnull [[GLOB1:@.*]], i32 [[OMP_GLOBAL_THREAD_NUM]])
; CHECK-NEXT: ret void
;
entry:
%omp_global_thread_num = call i32 @__kmpc_global_thread_num(%struct.ident_t* nonnull @0)
%tmp = load i32, i32* %.global_tid., align 4
%tmp1 = call i32 @__kmpc_single(%struct.ident_t* nonnull @0, i32 %tmp)
%tmp2 = icmp eq i32 %tmp1, 0
br i1 %tmp2, label %omp_if.end, label %omp_if.then
omp_if.then: ; preds = %entry
%tmp3 = load i32, i32* %a, align 4
%inc = add nsw i32 %tmp3, 1
store i32 %inc, i32* %a, align 4
call void @__kmpc_end_single(%struct.ident_t* nonnull @0, i32 %tmp)
br label %omp_if.end
omp_if.end: ; preds = %entry, %omp_if.then
call void @__kmpc_barrier(%struct.ident_t* nonnull @1, i32 %omp_global_thread_num) #6
ret void
}
define internal void @.omp_outlined..6(i32* noalias %.global_tid., i32* noalias %.bound_tid., i32* dereferenceable(4) %a) {
; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..6
; CHECK-SAME: (i32* noalias nocapture nonnull readonly align 4 dereferenceable(4) [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A1:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[DOTOMP_REDUCTION_RED_LIST:%.*]] = alloca [1 x i8*], align 8
; CHECK-NEXT: [[TMP:%.*]] = bitcast i32* [[A1]] to i8*
; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noundef nonnull align 4 [[TMP]]) [[ATTR0]]
; CHECK-NEXT: store i32 1, i32* [[A1]], align 4
; CHECK-NEXT: [[TMP1:%.*]] = bitcast [1 x i8*]* [[DOTOMP_REDUCTION_RED_LIST]] to i32**
; CHECK-NEXT: store i32* [[A1]], i32** [[TMP1]], align 8
; CHECK-NEXT: [[TMP2:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = bitcast [1 x i8*]* [[DOTOMP_REDUCTION_RED_LIST]] to i8*
; CHECK-NEXT: [[TMP4:%.*]] = call i32 @__kmpc_reduce_nowait(%struct.ident_t* noundef nonnull [[GLOB2:@.*]], i32 [[TMP2]], i32 noundef 1, i64 noundef 8, i8* noundef nonnull align 8 [[TMP3]], void (i8*, i8*)* noundef nonnull @.omp.reduction.reduction_func, [8 x i32]* noundef nonnull @.gomp_critical_user_.reduction.var)
; CHECK-NEXT: switch i32 [[TMP4]], label [[DOTOMP_REDUCTION_DEFAULT:%.*]] [
; CHECK-NEXT: i32 1, label [[DOTOMP_REDUCTION_CASE1:%.*]]
; CHECK-NEXT: i32 2, label [[DOTOMP_REDUCTION_CASE2:%.*]]
; CHECK-NEXT: ]
; CHECK: .omp.reduction.case1:
; CHECK-NEXT: [[TMP5:%.*]] = load i32, i32* [[A]], align 4
; CHECK-NEXT: [[TMP6:%.*]] = load i32, i32* [[A1]], align 4
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP5]], [[TMP6]]
; CHECK-NEXT: store i32 [[ADD]], i32* [[A]], align 4
; CHECK-NEXT: call void @__kmpc_end_reduce_nowait(%struct.ident_t* noundef nonnull [[GLOB2]], i32 [[TMP2]], [8 x i32]* noundef nonnull @.gomp_critical_user_.reduction.var)
; CHECK-NEXT: br label [[DOTOMP_REDUCTION_DEFAULT]]
; CHECK: .omp.reduction.case2:
; CHECK-NEXT: [[TMP7:%.*]] = load i32, i32* [[A1]], align 4
; CHECK-NEXT: [[TMP8:%.*]] = atomicrmw add i32* [[A]], i32 [[TMP7]] monotonic
; CHECK-NEXT: br label [[DOTOMP_REDUCTION_DEFAULT]]
; CHECK: .omp.reduction.default:
; CHECK-NEXT: [[TMP9:%.*]] = bitcast i32* [[A1]] to i8*
; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* noundef nonnull [[TMP9]])
; CHECK-NEXT: ret void
;
entry:
%a1 = alloca i32, align 4
%.omp.reduction.red_list = alloca [1 x i8*], align 8
%tmp = bitcast i32* %a1 to i8*
call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %tmp)
store i32 1, i32* %a1, align 4
%tmp1 = bitcast [1 x i8*]* %.omp.reduction.red_list to i32**
store i32* %a1, i32** %tmp1, align 8
%tmp2 = load i32, i32* %.global_tid., align 4
%tmp3 = bitcast [1 x i8*]* %.omp.reduction.red_list to i8*
%tmp4 = call i32 @__kmpc_reduce_nowait(%struct.ident_t* nonnull @2, i32 %tmp2, i32 1, i64 8, i8* nonnull %tmp3, void (i8*, i8*)* nonnull @.omp.reduction.reduction_func, [8 x i32]* nonnull @.gomp_critical_user_.reduction.var)
switch i32 %tmp4, label %.omp.reduction.default [
i32 1, label %.omp.reduction.case1
i32 2, label %.omp.reduction.case2
]
.omp.reduction.case1: ; preds = %entry
%tmp5 = load i32, i32* %a, align 4
%tmp6 = load i32, i32* %a1, align 4
%add = add nsw i32 %tmp5, %tmp6
store i32 %add, i32* %a, align 4
call void @__kmpc_end_reduce_nowait(%struct.ident_t* nonnull @2, i32 %tmp2, [8 x i32]* nonnull @.gomp_critical_user_.reduction.var)
br label %.omp.reduction.default
.omp.reduction.case2: ; preds = %entry
%tmp7 = load i32, i32* %a1, align 4
%tmp8 = atomicrmw add i32* %a, i32 %tmp7 monotonic
br label %.omp.reduction.default
.omp.reduction.default: ; preds = %.omp.reduction.case2, %.omp.reduction.case1, %entry
%tmp9 = bitcast i32* %a1 to i8*
call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %tmp9)
ret void
}
define internal void @.omp.reduction.reduction_func(i8* %arg, i8* %arg1) {
; CHECK-LABEL: define {{[^@]+}}@.omp.reduction.reduction_func
; CHECK-SAME: (i8* nocapture nofree nonnull readonly align 8 dereferenceable(8) [[ARG:%.*]], i8* nocapture nofree nonnull readonly align 8 dereferenceable(8) [[ARG1:%.*]]) [[ATTR9:#.*]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP:%.*]] = bitcast i8* [[ARG1]] to i32**
; CHECK-NEXT: [[TMP2:%.*]] = load i32*, i32** [[TMP]], align 8
; CHECK-NEXT: [[TMP3:%.*]] = bitcast i8* [[ARG]] to i32**
; CHECK-NEXT: [[TMP4:%.*]] = load i32*, i32** [[TMP3]], align 8
; CHECK-NEXT: [[TMP5:%.*]] = load i32, i32* [[TMP4]], align 4
; CHECK-NEXT: [[TMP6:%.*]] = load i32, i32* [[TMP2]], align 4
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP5]], [[TMP6]]
; CHECK-NEXT: store i32 [[ADD]], i32* [[TMP4]], align 4
; CHECK-NEXT: ret void
;
entry:
%tmp = bitcast i8* %arg1 to i32**
%tmp2 = load i32*, i32** %tmp, align 8
%tmp3 = bitcast i8* %arg to i32**
%tmp4 = load i32*, i32** %tmp3, align 8
%tmp5 = load i32, i32* %tmp4, align 4
%tmp6 = load i32, i32* %tmp2, align 4
%add = add nsw i32 %tmp5, %tmp6
store i32 %add, i32* %tmp4, align 4
ret void
}
declare i32 @__kmpc_single(%struct.ident_t*, i32)
declare void @__kmpc_end_single(%struct.ident_t*, i32)
declare void @__kmpc_barrier(%struct.ident_t*, i32)
declare i32 @__kmpc_global_thread_num(%struct.ident_t*) nofree nosync nounwind readonly
declare i32 @__kmpc_reduce_nowait(%struct.ident_t*, i32, i32, i64, i8*, void (i8*, i8*)*, [8 x i32]*)
declare void @__kmpc_end_reduce_nowait(%struct.ident_t*, i32, [8 x i32]*)
declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)
declare !callback !2 void @__kmpc_fork_call(%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...)
declare void @unknown()
declare void @readonly() readonly
declare void @readnone() readnone
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{!"clang"}
!2 = !{!3}
!3 = !{i64 2, i64 -1, i64 -1, i1 true}
!4 = !{!5, !5, i64 0}
!5 = !{!"int", !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
Reference in New Issue View Git Blame Copy Permalink