[llvm] r360426 - [Pass Pipeline][NFC] Add a test prior to committing D61726
Nemanja Ivanovic via llvm-commits
llvm-commits at lists.llvm.org
Fri May 10 06:47:00 PDT 2019
Author: nemanjai
Date: Fri May 10 06:47:00 2019
New Revision: 360426
URL: http://llvm.org/viewvc/llvm-project?rev=360426&view=rev
Log:
[Pass Pipeline][NFC] Add a test prior to committing D61726
This patch just adds a test case to show the differences in code emitted
by opt before and after https://reviews.llvm.org/D61726.
Added:
llvm/trunk/test/Transforms/PhaseOrdering/reassociate-after-unroll.ll
Added: llvm/trunk/test/Transforms/PhaseOrdering/reassociate-after-unroll.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/PhaseOrdering/reassociate-after-unroll.ll?rev=360426&view=auto
==============================================================================
--- llvm/trunk/test/Transforms/PhaseOrdering/reassociate-after-unroll.ll (added)
+++ llvm/trunk/test/Transforms/PhaseOrdering/reassociate-after-unroll.ll Fri May 10 06:47:00 2019
@@ -0,0 +1,152 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -O2 -S < %s | FileCheck %s
+; RUN: opt -passes='default<O2>' -S < %s | FileCheck %s --check-prefix=NPM
+target datalayout = "e-m:e-i64:64-n32:64"
+target triple = "powerpc64le-unknown-linux-gnu"
+
+define dso_local i64 @func(i64 %blah, i64 %limit) #0 {
+; CHECK-LABEL: @func(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[CMP4:%.*]] = icmp eq i64 [[LIMIT:%.*]], 0
+; CHECK-NEXT: br i1 [[CMP4]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY_LR_PH:%.*]]
+; CHECK: for.body.lr.ph:
+; CHECK-NEXT: [[CONV:%.*]] = and i64 [[BLAH:%.*]], 4294967295
+; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[LIMIT]], -1
+; CHECK-NEXT: [[XTRAITER:%.*]] = and i64 [[LIMIT]], 7
+; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i64 [[TMP0]], 7
+; CHECK-NEXT: br i1 [[TMP1]], label [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA:%.*]], label [[FOR_BODY_LR_PH_NEW:%.*]]
+; CHECK: for.body.lr.ph.new:
+; CHECK-NEXT: [[UNROLL_ITER:%.*]] = sub i64 [[LIMIT]], [[XTRAITER]]
+; CHECK-NEXT: br label [[FOR_BODY:%.*]]
+; CHECK: for.cond.cleanup.loopexit.unr-lcssa:
+; CHECK-NEXT: [[ADD_LCSSA_PH:%.*]] = phi i64 [ undef, [[FOR_BODY_LR_PH]] ], [ [[ADD_7:%.*]], [[FOR_BODY]] ]
+; CHECK-NEXT: [[K_05_UNR:%.*]] = phi i64 [ 1, [[FOR_BODY_LR_PH]] ], [ [[AND:%.*]], [[FOR_BODY]] ]
+; CHECK-NEXT: [[LCMP_MOD:%.*]] = icmp eq i64 [[XTRAITER]], 0
+; CHECK-NEXT: br i1 [[LCMP_MOD]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY_EPIL:%.*]]
+; CHECK: for.body.epil:
+; CHECK-NEXT: [[G_06_EPIL:%.*]] = phi i64 [ [[ADD_EPIL:%.*]], [[FOR_BODY_EPIL]] ], [ [[ADD_LCSSA_PH]], [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]] ]
+; CHECK-NEXT: [[K_05_EPIL:%.*]] = phi i64 [ [[AND_EPIL:%.*]], [[FOR_BODY_EPIL]] ], [ [[K_05_UNR]], [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]] ]
+; CHECK-NEXT: [[EPIL_ITER:%.*]] = phi i64 [ [[EPIL_ITER_SUB:%.*]], [[FOR_BODY_EPIL]] ], [ [[XTRAITER]], [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]] ]
+; CHECK-NEXT: [[AND_EPIL]] = and i64 [[CONV]], [[K_05_EPIL]]
+; CHECK-NEXT: [[ADD_EPIL]] = add i64 [[AND_EPIL]], [[G_06_EPIL]]
+; CHECK-NEXT: [[EPIL_ITER_SUB]] = add i64 [[EPIL_ITER]], -1
+; CHECK-NEXT: [[EPIL_ITER_CMP:%.*]] = icmp eq i64 [[EPIL_ITER_SUB]], 0
+; CHECK-NEXT: br i1 [[EPIL_ITER_CMP]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY_EPIL]], !llvm.loop !0
+; CHECK: for.cond.cleanup:
+; CHECK-NEXT: [[G_0_LCSSA:%.*]] = phi i64 [ undef, [[ENTRY:%.*]] ], [ [[ADD_LCSSA_PH]], [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]] ], [ [[ADD_EPIL]], [[FOR_BODY_EPIL]] ]
+; CHECK-NEXT: ret i64 [[G_0_LCSSA]]
+; CHECK: for.body:
+; CHECK-NEXT: [[G_06:%.*]] = phi i64 [ undef, [[FOR_BODY_LR_PH_NEW]] ], [ [[ADD_7]], [[FOR_BODY]] ]
+; CHECK-NEXT: [[K_05:%.*]] = phi i64 [ 1, [[FOR_BODY_LR_PH_NEW]] ], [ [[AND]], [[FOR_BODY]] ]
+; CHECK-NEXT: [[NITER:%.*]] = phi i64 [ [[UNROLL_ITER]], [[FOR_BODY_LR_PH_NEW]] ], [ [[NITER_NSUB_7:%.*]], [[FOR_BODY]] ]
+; CHECK-NEXT: [[AND]] = and i64 [[CONV]], [[K_05]]
+; CHECK-NEXT: [[ADD:%.*]] = add i64 [[AND]], [[G_06]]
+; CHECK-NEXT: [[ADD_1:%.*]] = add i64 [[AND]], [[ADD]]
+; CHECK-NEXT: [[ADD_2:%.*]] = add i64 [[AND]], [[ADD_1]]
+; CHECK-NEXT: [[ADD_3:%.*]] = add i64 [[AND]], [[ADD_2]]
+; CHECK-NEXT: [[ADD_4:%.*]] = add i64 [[AND]], [[ADD_3]]
+; CHECK-NEXT: [[ADD_5:%.*]] = add i64 [[AND]], [[ADD_4]]
+; CHECK-NEXT: [[ADD_6:%.*]] = add i64 [[AND]], [[ADD_5]]
+; CHECK-NEXT: [[ADD_7]] = add i64 [[AND]], [[ADD_6]]
+; CHECK-NEXT: [[NITER_NSUB_7]] = add i64 [[NITER]], -8
+; CHECK-NEXT: [[NITER_NCMP_7:%.*]] = icmp eq i64 [[NITER_NSUB_7]], 0
+; CHECK-NEXT: br i1 [[NITER_NCMP_7]], label [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]], label [[FOR_BODY]]
+;
+; NPM-LABEL: @func(
+; NPM-NEXT: entry:
+; NPM-NEXT: [[CMP4:%.*]] = icmp eq i64 [[LIMIT:%.*]], 0
+; NPM-NEXT: br i1 [[CMP4]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY_LR_PH:%.*]]
+; NPM: for.body.lr.ph:
+; NPM-NEXT: [[CONV:%.*]] = and i64 [[BLAH:%.*]], 4294967295
+; NPM-NEXT: [[TMP0:%.*]] = add i64 [[LIMIT]], -1
+; NPM-NEXT: [[XTRAITER:%.*]] = and i64 [[LIMIT]], 7
+; NPM-NEXT: [[TMP1:%.*]] = icmp ult i64 [[TMP0]], 7
+; NPM-NEXT: br i1 [[TMP1]], label [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA:%.*]], label [[FOR_BODY_LR_PH_NEW:%.*]]
+; NPM: for.body.lr.ph.new:
+; NPM-NEXT: [[UNROLL_ITER:%.*]] = sub i64 [[LIMIT]], [[XTRAITER]]
+; NPM-NEXT: [[AND_0:%.*]] = and i64 [[CONV]], 1
+; NPM-NEXT: br label [[FOR_BODY:%.*]]
+; NPM: for.cond.cleanup.loopexit.unr-lcssa:
+; NPM-NEXT: [[ADD_LCSSA_PH:%.*]] = phi i64 [ undef, [[FOR_BODY_LR_PH]] ], [ [[ADD_7:%.*]], [[FOR_BODY]] ]
+; NPM-NEXT: [[K_05_UNR:%.*]] = phi i64 [ 1, [[FOR_BODY_LR_PH]] ], [ [[AND_PHI:%.*]], [[FOR_BODY]] ]
+; NPM-NEXT: [[LCMP_MOD:%.*]] = icmp eq i64 [[XTRAITER]], 0
+; NPM-NEXT: br i1 [[LCMP_MOD]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY_EPIL:%.*]]
+; NPM: for.body.epil:
+; NPM-NEXT: [[G_06_EPIL:%.*]] = phi i64 [ [[ADD_EPIL:%.*]], [[FOR_BODY_EPIL]] ], [ [[ADD_LCSSA_PH]], [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]] ]
+; NPM-NEXT: [[K_05_EPIL:%.*]] = phi i64 [ [[AND_EPIL:%.*]], [[FOR_BODY_EPIL]] ], [ [[K_05_UNR]], [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]] ]
+; NPM-NEXT: [[EPIL_ITER:%.*]] = phi i64 [ [[EPIL_ITER_SUB:%.*]], [[FOR_BODY_EPIL]] ], [ [[XTRAITER]], [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]] ]
+; NPM-NEXT: [[AND_EPIL]] = and i64 [[CONV]], [[K_05_EPIL]]
+; NPM-NEXT: [[ADD_EPIL]] = add i64 [[AND_EPIL]], [[G_06_EPIL]]
+; NPM-NEXT: [[EPIL_ITER_SUB]] = add i64 [[EPIL_ITER]], -1
+; NPM-NEXT: [[EPIL_ITER_CMP:%.*]] = icmp eq i64 [[EPIL_ITER_SUB]], 0
+; NPM-NEXT: br i1 [[EPIL_ITER_CMP]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY_EPIL]], !llvm.loop !0
+; NPM: for.cond.cleanup:
+; NPM-NEXT: [[G_0_LCSSA:%.*]] = phi i64 [ undef, [[ENTRY:%.*]] ], [ [[ADD_LCSSA_PH]], [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]] ], [ [[ADD_EPIL]], [[FOR_BODY_EPIL]] ]
+; NPM-NEXT: ret i64 [[G_0_LCSSA]]
+; NPM: for.body:
+; NPM-NEXT: [[G_06:%.*]] = phi i64 [ undef, [[FOR_BODY_LR_PH_NEW]] ], [ [[ADD_7]], [[FOR_BODY_FOR_BODY_CRIT_EDGE:%.*]] ]
+; NPM-NEXT: [[AND_PHI]] = phi i64 [ [[AND_0]], [[FOR_BODY_LR_PH_NEW]] ], [ [[AND_1:%.*]], [[FOR_BODY_FOR_BODY_CRIT_EDGE]] ]
+; NPM-NEXT: [[NITER:%.*]] = phi i64 [ [[UNROLL_ITER]], [[FOR_BODY_LR_PH_NEW]] ], [ [[NITER_NSUB_7:%.*]], [[FOR_BODY_FOR_BODY_CRIT_EDGE]] ]
+; NPM-NEXT: [[ADD:%.*]] = add i64 [[AND_PHI]], [[G_06]]
+; NPM-NEXT: [[ADD_1:%.*]] = add i64 [[AND_PHI]], [[ADD]]
+; NPM-NEXT: [[ADD_2:%.*]] = add i64 [[AND_PHI]], [[ADD_1]]
+; NPM-NEXT: [[ADD_3:%.*]] = add i64 [[AND_PHI]], [[ADD_2]]
+; NPM-NEXT: [[ADD_4:%.*]] = add i64 [[AND_PHI]], [[ADD_3]]
+; NPM-NEXT: [[ADD_5:%.*]] = add i64 [[AND_PHI]], [[ADD_4]]
+; NPM-NEXT: [[ADD_6:%.*]] = add i64 [[AND_PHI]], [[ADD_5]]
+; NPM-NEXT: [[ADD_7]] = add i64 [[AND_PHI]], [[ADD_6]]
+; NPM-NEXT: [[NITER_NSUB_7]] = add i64 [[NITER]], -8
+; NPM-NEXT: [[NITER_NCMP_7:%.*]] = icmp eq i64 [[NITER_NSUB_7]], 0
+; NPM-NEXT: br i1 [[NITER_NCMP_7]], label [[FOR_COND_CLEANUP_LOOPEXIT_UNR_LCSSA]], label [[FOR_BODY_FOR_BODY_CRIT_EDGE]]
+; NPM: for.body.for.body_crit_edge:
+; NPM-NEXT: [[AND_1]] = and i64 [[CONV]], [[AND_PHI]]
+; NPM-NEXT: br label [[FOR_BODY]]
+;
+entry:
+ %blah.addr = alloca i64, align 8
+ %limit.addr = alloca i64, align 8
+ %k = alloca i32, align 4
+ %g = alloca i64, align 8
+ %i = alloca i64, align 8
+ store i64 %blah, i64* %blah.addr, align 8
+ store i64 %limit, i64* %limit.addr, align 8
+ store i32 1, i32* %k, align 4
+ store i64 0, i64* %i, align 8
+ br label %for.cond
+
+for.cond: ; preds = %for.body, %entry
+ %0 = load i64, i64* %i, align 8
+ %1 = load i64, i64* %limit.addr, align 8
+ %cmp = icmp ult i64 %0, %1
+ br i1 %cmp, label %for.body, label %for.cond.cleanup
+
+for.cond.cleanup: ; preds = %for.cond
+ %2 = load i64, i64* %g, align 8
+ ret i64 %2
+
+for.body: ; preds = %for.cond
+ %3 = load i64, i64* %blah.addr, align 8
+ %4 = load i32, i32* %k, align 4
+ %conv = zext i32 %4 to i64
+ %and = and i64 %conv, %3
+ %conv1 = trunc i64 %and to i32
+ store i32 %conv1, i32* %k, align 4
+ %5 = load i32, i32* %k, align 4
+ %conv2 = zext i32 %5 to i64
+ %6 = load i64, i64* %g, align 8
+ %add = add i64 %6, %conv2
+ store i64 %add, i64* %g, align 8
+ %7 = load i64, i64* %i, align 8
+ %inc = add i64 %7, 1
+ store i64 %inc, i64* %i, align 8
+ br label %for.cond
+}
+
+; Function Attrs: argmemonly nounwind
+declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1
+
+; Function Attrs: argmemonly nounwind
+declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1
+
+attributes #0 = { "use-soft-float"="false" }
+attributes #1 = { argmemonly nounwind }
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