29441e4f5f
This PR removes the old `nocapture` attribute, replacing it with the new `captures` attribute introduced in #116990. This change is intended to be essentially NFC, replacing existing uses of `nocapture` with `captures(none)` without adding any new analysis capabilities. Making use of non-`none` values is left for a followup. Some notes: * `nocapture` will be upgraded to `captures(none)` by the bitcode reader. * `nocapture` will also be upgraded by the textual IR reader. This is to make it easier to use old IR files and somewhat reduce the test churn in this PR. * Helper APIs like `doesNotCapture()` will check for `captures(none)`. * MLIR import will convert `captures(none)` into an `llvm.nocapture` attribute. The representation in the LLVM IR dialect should be updated separately.
102 lines
4.3 KiB
LLVM
102 lines
4.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
|
|
; RUN: opt < %s -passes='loop(loop-interchange),simplifycfg' -simplifycfg-require-and-preserve-domtree=1 \
|
|
; RUN: -pass-remarks=loop-interchange -pass-remarks-missed=loop-interchange -stats -S 2>&1 \
|
|
; RUN: | FileCheck -check-prefix=STATS %s
|
|
|
|
; no_deps_interchange just accesses a single nested array and can be interchange.
|
|
;
|
|
define i32 @no_deps_interchange(ptr nocapture %Arr) {
|
|
; STATS-LABEL: define i32 @no_deps_interchange(
|
|
; STATS-SAME: ptr captures(none) [[ARR:%.*]]) {
|
|
; STATS-NEXT: [[ENTRY:.*]]:
|
|
; STATS-NEXT: br label %[[FOR2:.*]]
|
|
; STATS: [[FOR1_HEADER:.*]]:
|
|
; STATS-NEXT: [[INDVARS_IV19:%.*]] = phi i64 [ [[INDVARS_IV_NEXT20:%.*]], %[[FOR1_HEADER]] ], [ 0, %[[FOR2]] ]
|
|
; STATS-NEXT: [[ARRAYIDX6:%.*]] = getelementptr inbounds [1024 x i32], ptr [[ARR]], i64 [[INDVARS_IV:%.*]], i64 [[INDVARS_IV19]]
|
|
; STATS-NEXT: store i32 0, ptr [[ARRAYIDX6]], align 4
|
|
; STATS-NEXT: [[INDVARS_IV_NEXT:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1
|
|
; STATS-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], 1024
|
|
; STATS-NEXT: [[INDVARS_IV_NEXT20]] = add nuw nsw i64 [[INDVARS_IV19]], 1
|
|
; STATS-NEXT: [[EXITCOND21:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT20]], 1024
|
|
; STATS-NEXT: br i1 [[EXITCOND21]], label %[[FOR1_HEADER]], label %[[FOR2_SPLIT:.*]]
|
|
; STATS: [[FOR2]]:
|
|
; STATS-NEXT: [[INDVARS_IV]] = phi i64 [ [[TMP0:%.*]], %[[FOR2_SPLIT]] ], [ 0, %[[ENTRY]] ]
|
|
; STATS-NEXT: br label %[[FOR1_HEADER]]
|
|
; STATS: [[FOR2_SPLIT]]:
|
|
; STATS-NEXT: [[TMP0]] = add nuw nsw i64 [[INDVARS_IV]], 1
|
|
; STATS-NEXT: [[TMP1:%.*]] = icmp ne i64 [[TMP0]], 1024
|
|
; STATS-NEXT: br i1 [[TMP1]], label %[[FOR2]], label %[[EXIT:.*]]
|
|
; STATS: [[EXIT]]:
|
|
; STATS-NEXT: ret i32 0
|
|
;
|
|
entry:
|
|
br label %for1.header
|
|
|
|
for1.header:
|
|
%indvars.iv19 = phi i64 [ 0, %entry ], [ %indvars.iv.next20, %for1.inc ]
|
|
br label %for2
|
|
|
|
for2:
|
|
%indvars.iv = phi i64 [ 0, %for1.header ], [ %indvars.iv.next, %for2 ]
|
|
%arrayidx6 = getelementptr inbounds [1024 x i32], ptr %Arr, i64 %indvars.iv, i64 %indvars.iv19
|
|
store i32 0, ptr %arrayidx6, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%exitcond = icmp ne i64 %indvars.iv.next, 1024
|
|
br i1 %exitcond, label %for2, label %for1.inc
|
|
|
|
for1.inc:
|
|
%indvars.iv.next20 = add nuw nsw i64 %indvars.iv19, 1
|
|
%exitcond21 = icmp ne i64 %indvars.iv.next20, 1024
|
|
br i1 %exitcond21, label %for1.header, label %exit
|
|
|
|
exit:
|
|
ret i32 0
|
|
|
|
}
|
|
|
|
; No memory access using any induction variables, interchanging not beneficial.
|
|
;
|
|
define i32 @no_mem_instrs(ptr %ptr) {
|
|
; STATS-LABEL: define i32 @no_mem_instrs(
|
|
; STATS-SAME: ptr [[PTR:%.*]]) {
|
|
; STATS-NEXT: [[ENTRY:.*]]:
|
|
; STATS-NEXT: br label %[[FOR1_HEADER:.*]]
|
|
; STATS: [[FOR1_HEADER]]:
|
|
; STATS-NEXT: [[INDVARS_IV19:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[INDVARS_IV_NEXT20:%.*]], %[[FOR1_INC:.*]] ]
|
|
; STATS-NEXT: br label %[[FOR2:.*]]
|
|
; STATS: [[FOR2]]:
|
|
; STATS-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, %[[FOR1_HEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], %[[FOR2]] ]
|
|
; STATS-NEXT: store i64 [[INDVARS_IV]], ptr [[PTR]], align 4
|
|
; STATS-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
|
|
; STATS-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], 1024
|
|
; STATS-NEXT: br i1 [[EXITCOND]], label %[[FOR2]], label %[[FOR1_INC]]
|
|
; STATS: [[FOR1_INC]]:
|
|
; STATS-NEXT: [[INDVARS_IV_NEXT20]] = add nuw nsw i64 [[INDVARS_IV19]], 1
|
|
; STATS-NEXT: [[EXITCOND21:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT20]], 1024
|
|
; STATS-NEXT: br i1 [[EXITCOND21]], label %[[FOR1_HEADER]], label %[[EXIT:.*]]
|
|
; STATS: [[EXIT]]:
|
|
; STATS-NEXT: ret i32 0
|
|
;
|
|
entry:
|
|
br label %for1.header
|
|
|
|
for1.header:
|
|
%indvars.iv19 = phi i64 [ 0, %entry ], [ %indvars.iv.next20, %for1.inc ]
|
|
br label %for2
|
|
|
|
for2:
|
|
%indvars.iv = phi i64 [ 0, %for1.header ], [ %indvars.iv.next, %for2 ]
|
|
store i64 %indvars.iv, ptr %ptr, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%exitcond = icmp ne i64 %indvars.iv.next, 1024
|
|
br i1 %exitcond, label %for2, label %for1.inc
|
|
|
|
for1.inc:
|
|
%indvars.iv.next20 = add nuw nsw i64 %indvars.iv19, 1
|
|
%exitcond21 = icmp ne i64 %indvars.iv.next20, 1024
|
|
br i1 %exitcond21, label %for1.header, label %exit
|
|
|
|
exit: ; preds = %for1.inc
|
|
ret i32 0
|
|
}
|