edf56f1fa2
A lot of interchange tests unnecessary relied on a build with ASSERTS enabled. Instead, simply check the IR output for both negative and positive tests so that we don't rely on debug messages. This increases test coverage as these tests will now also run with non-assert builds. For a couple of files keeping some of the debug tests was useful, so separated out them out and moved them to a similarly named *-remarks.ll file.
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
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; RUN: opt < %s -passes='loop(loop-interchange),simplifycfg' -simplifycfg-require-and-preserve-domtree=1 \
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; RUN: -pass-remarks=loop-interchange -pass-remarks-missed=loop-interchange -stats -S 2>&1 \
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; RUN: | FileCheck -check-prefix=STATS %s
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; no_deps_interchange just accesses a single nested array and can be interchange.
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;
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define i32 @no_deps_interchange(ptr nocapture %Arr) {
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; STATS-LABEL: define i32 @no_deps_interchange(
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; STATS-SAME: ptr nocapture [[ARR:%.*]]) {
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; STATS-NEXT: [[ENTRY:.*]]:
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; STATS-NEXT: br label %[[FOR2:.*]]
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; STATS: [[FOR1_HEADER:.*]]:
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; STATS-NEXT: [[INDVARS_IV19:%.*]] = phi i64 [ [[INDVARS_IV_NEXT20:%.*]], %[[FOR1_HEADER]] ], [ 0, %[[FOR2]] ]
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; STATS-NEXT: [[ARRAYIDX6:%.*]] = getelementptr inbounds [1024 x i32], ptr [[ARR]], i64 [[INDVARS_IV:%.*]], i64 [[INDVARS_IV19]]
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; STATS-NEXT: store i32 0, ptr [[ARRAYIDX6]], align 4
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; STATS-NEXT: [[INDVARS_IV_NEXT:%.*]] = add nuw nsw i64 [[INDVARS_IV]], 1
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; STATS-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], 1024
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; STATS-NEXT: [[INDVARS_IV_NEXT20]] = add nuw nsw i64 [[INDVARS_IV19]], 1
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; STATS-NEXT: [[EXITCOND21:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT20]], 1024
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; STATS-NEXT: br i1 [[EXITCOND21]], label %[[FOR1_HEADER]], label %[[FOR2_SPLIT:.*]]
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; STATS: [[FOR2]]:
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; STATS-NEXT: [[INDVARS_IV]] = phi i64 [ [[TMP0:%.*]], %[[FOR2_SPLIT]] ], [ 0, %[[ENTRY]] ]
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; STATS-NEXT: br label %[[FOR1_HEADER]]
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; STATS: [[FOR2_SPLIT]]:
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; STATS-NEXT: [[TMP0]] = add nuw nsw i64 [[INDVARS_IV]], 1
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; STATS-NEXT: [[TMP1:%.*]] = icmp ne i64 [[TMP0]], 1024
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; STATS-NEXT: br i1 [[TMP1]], label %[[FOR2]], label %[[EXIT:.*]]
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; STATS: [[EXIT]]:
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; STATS-NEXT: ret i32 0
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;
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entry:
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br label %for1.header
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for1.header:
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%indvars.iv19 = phi i64 [ 0, %entry ], [ %indvars.iv.next20, %for1.inc ]
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br label %for2
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for2:
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%indvars.iv = phi i64 [ 0, %for1.header ], [ %indvars.iv.next, %for2 ]
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%arrayidx6 = getelementptr inbounds [1024 x i32], ptr %Arr, i64 %indvars.iv, i64 %indvars.iv19
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store i32 0, ptr %arrayidx6, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp ne i64 %indvars.iv.next, 1024
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br i1 %exitcond, label %for2, label %for1.inc
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for1.inc:
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%indvars.iv.next20 = add nuw nsw i64 %indvars.iv19, 1
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%exitcond21 = icmp ne i64 %indvars.iv.next20, 1024
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br i1 %exitcond21, label %for1.header, label %exit
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exit:
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ret i32 0
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}
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; No memory access using any induction variables, interchanging not beneficial.
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;
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define i32 @no_mem_instrs(ptr %ptr) {
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; STATS-LABEL: define i32 @no_mem_instrs(
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; STATS-SAME: ptr [[PTR:%.*]]) {
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; STATS-NEXT: [[ENTRY:.*]]:
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; STATS-NEXT: br label %[[FOR1_HEADER:.*]]
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; STATS: [[FOR1_HEADER]]:
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; STATS-NEXT: [[INDVARS_IV19:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[INDVARS_IV_NEXT20:%.*]], %[[FOR1_INC:.*]] ]
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; STATS-NEXT: br label %[[FOR2:.*]]
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; STATS: [[FOR2]]:
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; STATS-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, %[[FOR1_HEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], %[[FOR2]] ]
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; STATS-NEXT: store i64 [[INDVARS_IV]], ptr [[PTR]], align 4
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; STATS-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
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; STATS-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], 1024
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; STATS-NEXT: br i1 [[EXITCOND]], label %[[FOR2]], label %[[FOR1_INC]]
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; STATS: [[FOR1_INC]]:
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; STATS-NEXT: [[INDVARS_IV_NEXT20]] = add nuw nsw i64 [[INDVARS_IV19]], 1
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; STATS-NEXT: [[EXITCOND21:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT20]], 1024
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; STATS-NEXT: br i1 [[EXITCOND21]], label %[[FOR1_HEADER]], label %[[EXIT:.*]]
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; STATS: [[EXIT]]:
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; STATS-NEXT: ret i32 0
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;
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entry:
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br label %for1.header
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for1.header:
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%indvars.iv19 = phi i64 [ 0, %entry ], [ %indvars.iv.next20, %for1.inc ]
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br label %for2
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for2:
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%indvars.iv = phi i64 [ 0, %for1.header ], [ %indvars.iv.next, %for2 ]
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store i64 %indvars.iv, ptr %ptr, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp ne i64 %indvars.iv.next, 1024
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br i1 %exitcond, label %for2, label %for1.inc
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for1.inc:
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%indvars.iv.next20 = add nuw nsw i64 %indvars.iv19, 1
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%exitcond21 = icmp ne i64 %indvars.iv.next20, 1024
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br i1 %exitcond21, label %for1.header, label %exit
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exit: ; preds = %for1.inc
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ret i32 0
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}
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