[llvm] ab72871 - [SimpleLoopUnswitch] Fix wrong assertions in partial-unswitch.ll
Jingu Kang via llvm-commits
llvm-commits at lists.llvm.org
Mon Mar 29 06:05:30 PDT 2021
Author: Jingu Kang
Date: 2021-03-29T14:04:29+01:00
New Revision: ab728717033acef1566a57f6e749d282262a4881
URL: https://github.com/llvm/llvm-project/commit/ab728717033acef1566a57f6e749d282262a4881
DIFF: https://github.com/llvm/llvm-project/commit/ab728717033acef1566a57f6e749d282262a4881.diff
LOG: [SimpleLoopUnswitch] Fix wrong assertions in partial-unswitch.ll
Added:
Modified:
llvm/test/Transforms/SimpleLoopUnswitch/partial-unswitch.ll
Removed:
################################################################################
diff --git a/llvm/test/Transforms/SimpleLoopUnswitch/partial-unswitch.ll b/llvm/test/Transforms/SimpleLoopUnswitch/partial-unswitch.ll
index 4343efa3221ce..cb78d5e662cc1 100644
--- a/llvm/test/Transforms/SimpleLoopUnswitch/partial-unswitch.ll
+++ b/llvm/test/Transforms/SimpleLoopUnswitch/partial-unswitch.ll
@@ -6,27 +6,10 @@ declare void @clobber()
define i32 @partial_unswitch_true_successor(i32* %ptr, i32 %N) {
; CHECK-LABEL: @partial_unswitch_true_successor(
; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[PTR:%.*]], align 4
-; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 100
-; CHECK-NEXT: br i1 [[TMP1]], label [[ENTRY_SPLIT_US:%.*]], label [[ENTRY_SPLIT:%.*]]
-; CHECK: entry.split.us:
-; CHECK-NEXT: br label [[LOOP_HEADER_US:%.*]]
-; CHECK: loop.header.us:
-; CHECK-NEXT: [[IV_US:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT_US]] ], [ [[IV_NEXT_US:%.*]], [[LOOP_LATCH_US:%.*]] ]
-; CHECK-NEXT: br label [[NOCLOBBER_US:%.*]]
-; CHECK: noclobber.us:
-; CHECK-NEXT: br label [[LOOP_LATCH_US]]
-; CHECK: loop.latch.us:
-; CHECK-NEXT: [[C_US:%.*]] = icmp ult i32 [[IV_US]], [[N:%.*]]
-; CHECK-NEXT: [[IV_NEXT_US]] = add i32 [[IV_US]], 1
-; CHECK-NEXT: br i1 [[C_US]], label [[LOOP_HEADER_US]], label [[EXIT_SPLIT_US:%.*]]
-; CHECK: exit.split.us:
-; CHECK-NEXT: br label [[EXIT:%.*]]
-; CHECK: entry.split:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
-; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
-; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR]], align 4
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR:%.*]], align 4
; CHECK-NEXT: [[SC:%.*]] = icmp eq i32 [[LV]], 100
; CHECK-NEXT: br i1 [[SC]], label [[NOCLOBBER:%.*]], label [[CLOBBER:%.*]]
; CHECK: noclobber:
@@ -35,11 +18,9 @@ define i32 @partial_unswitch_true_successor(i32* %ptr, i32 %N) {
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
-; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N:%.*]]
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
-; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_SPLIT:%.*]]
-; CHECK: exit.split:
-; CHECK-NEXT: br label [[EXIT]]
+; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: ret i32 10
;
@@ -71,27 +52,10 @@ exit:
define i32 @partial_unswitch_false_successor(i32* %ptr, i32 %N) {
; CHECK-LABEL: @partial_unswitch_false_successor(
; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[PTR:%.*]], align 4
-; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 100
-; CHECK-NEXT: br i1 [[TMP1]], label [[ENTRY_SPLIT:%.*]], label [[ENTRY_SPLIT_US:%.*]]
-; CHECK: entry.split.us:
-; CHECK-NEXT: br label [[LOOP_HEADER_US:%.*]]
-; CHECK: loop.header.us:
-; CHECK-NEXT: [[IV_US:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT_US]] ], [ [[IV_NEXT_US:%.*]], [[LOOP_LATCH_US:%.*]] ]
-; CHECK-NEXT: br label [[NOCLOBBER_US:%.*]]
-; CHECK: noclobber.us:
-; CHECK-NEXT: br label [[LOOP_LATCH_US]]
-; CHECK: loop.latch.us:
-; CHECK-NEXT: [[C_US:%.*]] = icmp ult i32 [[IV_US]], [[N:%.*]]
-; CHECK-NEXT: [[IV_NEXT_US]] = add i32 [[IV_US]], 1
-; CHECK-NEXT: br i1 [[C_US]], label [[LOOP_HEADER_US]], label [[EXIT_SPLIT_US:%.*]]
-; CHECK: exit.split.us:
-; CHECK-NEXT: br label [[EXIT:%.*]]
-; CHECK: entry.split:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
-; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
-; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR]], align 4
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR:%.*]], align 4
; CHECK-NEXT: [[SC:%.*]] = icmp eq i32 [[LV]], 100
; CHECK-NEXT: br i1 [[SC]], label [[CLOBBER:%.*]], label [[NOCLOBBER:%.*]]
; CHECK: clobber:
@@ -100,11 +64,9 @@ define i32 @partial_unswitch_false_successor(i32* %ptr, i32 %N) {
; CHECK: noclobber:
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
-; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N:%.*]]
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
-; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_SPLIT:%.*]]
-; CHECK: exit.split:
-; CHECK-NEXT: br label [[EXIT]]
+; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: ret i32 10
;
@@ -136,29 +98,10 @@ exit:
define i32 @partial_unswtich_gep_load_icmp(i32** %ptr, i32 %N) {
; CHECK-LABEL: @partial_unswtich_gep_load_icmp(
; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TMP0:%.*]] = getelementptr i32*, i32** [[PTR:%.*]], i32 1
-; CHECK-NEXT: [[TMP1:%.*]] = load i32*, i32** [[TMP0]], align 8
-; CHECK-NEXT: [[TMP2:%.*]] = load i32, i32* [[TMP1]], align 4
-; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP2]], 100
-; CHECK-NEXT: br i1 [[TMP3]], label [[ENTRY_SPLIT_US:%.*]], label [[ENTRY_SPLIT:%.*]]
-; CHECK: entry.split.us:
-; CHECK-NEXT: br label [[LOOP_HEADER_US:%.*]]
-; CHECK: loop.header.us:
-; CHECK-NEXT: [[IV_US:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT_US]] ], [ [[IV_NEXT_US:%.*]], [[LOOP_LATCH_US:%.*]] ]
-; CHECK-NEXT: br label [[NOCLOBBER_US:%.*]]
-; CHECK: noclobber.us:
-; CHECK-NEXT: br label [[LOOP_LATCH_US]]
-; CHECK: loop.latch.us:
-; CHECK-NEXT: [[C_US:%.*]] = icmp ult i32 [[IV_US]], [[N:%.*]]
-; CHECK-NEXT: [[IV_NEXT_US]] = add i32 [[IV_US]], 1
-; CHECK-NEXT: br i1 [[C_US]], label [[LOOP_HEADER_US]], label [[EXIT_SPLIT_US:%.*]]
-; CHECK: exit.split.us:
-; CHECK-NEXT: br label [[EXIT:%.*]]
-; CHECK: entry.split:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
-; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
-; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32*, i32** [[PTR]], i32 1
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32*, i32** [[PTR:%.*]], i32 1
; CHECK-NEXT: [[LV_1:%.*]] = load i32*, i32** [[GEP]], align 8
; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[LV_1]], align 4
; CHECK-NEXT: [[SC:%.*]] = icmp eq i32 [[LV]], 100
@@ -169,11 +112,9 @@ define i32 @partial_unswtich_gep_load_icmp(i32** %ptr, i32 %N) {
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
-; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N:%.*]]
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
-; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_SPLIT:%.*]]
-; CHECK: exit.split:
-; CHECK-NEXT: br label [[EXIT]]
+; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: ret i32 10
;
@@ -207,32 +148,11 @@ exit:
define i32 @partial_unswitch_reduction_phi(i32* %ptr, i32 %N) {
; CHECK-LABEL: @partial_unswitch_reduction_phi(
; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[PTR:%.*]], align 4
-; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 100
-; CHECK-NEXT: br i1 [[TMP1]], label [[ENTRY_SPLIT:%.*]], label [[ENTRY_SPLIT_US:%.*]]
-; CHECK: entry.split.us:
-; CHECK-NEXT: br label [[LOOP_HEADER_US:%.*]]
-; CHECK: loop.header.us:
-; CHECK-NEXT: [[IV_US:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT_US]] ], [ [[IV_NEXT_US:%.*]], [[LOOP_LATCH_US:%.*]] ]
-; CHECK-NEXT: [[RED_US:%.*]] = phi i32 [ 20, [[ENTRY_SPLIT_US]] ], [ [[RED_NEXT_US:%.*]], [[LOOP_LATCH_US]] ]
-; CHECK-NEXT: br label [[NOCLOBBER_US:%.*]]
-; CHECK: noclobber.us:
-; CHECK-NEXT: [[ADD_10_US:%.*]] = add i32 [[RED_US]], 10
-; CHECK-NEXT: br label [[LOOP_LATCH_US]]
-; CHECK: loop.latch.us:
-; CHECK-NEXT: [[RED_NEXT_US]] = phi i32 [ [[ADD_10_US]], [[NOCLOBBER_US]] ]
-; CHECK-NEXT: [[C_US:%.*]] = icmp ult i32 [[IV_US]], [[N:%.*]]
-; CHECK-NEXT: [[IV_NEXT_US]] = add i32 [[IV_US]], 1
-; CHECK-NEXT: br i1 [[C_US]], label [[LOOP_HEADER_US]], label [[EXIT_SPLIT_US:%.*]]
-; CHECK: exit.split.us:
-; CHECK-NEXT: [[RED_NEXT_LCSSA_US:%.*]] = phi i32 [ [[RED_NEXT_US]], [[LOOP_LATCH_US]] ]
-; CHECK-NEXT: br label [[EXIT:%.*]]
-; CHECK: entry.split:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
-; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
-; CHECK-NEXT: [[RED:%.*]] = phi i32 [ 20, [[ENTRY_SPLIT]] ], [ [[RED_NEXT:%.*]], [[LOOP_LATCH]] ]
-; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR]], align 4
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[RED:%.*]] = phi i32 [ 20, [[ENTRY]] ], [ [[RED_NEXT:%.*]], [[LOOP_LATCH]] ]
+; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR:%.*]], align 4
; CHECK-NEXT: [[SC:%.*]] = icmp eq i32 [[LV]], 100
; CHECK-NEXT: br i1 [[SC]], label [[CLOBBER:%.*]], label [[NOCLOBBER:%.*]]
; CHECK: clobber:
@@ -244,15 +164,12 @@ define i32 @partial_unswitch_reduction_phi(i32* %ptr, i32 %N) {
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
; CHECK-NEXT: [[RED_NEXT]] = phi i32 [ [[ADD_5]], [[CLOBBER]] ], [ [[ADD_10]], [[NOCLOBBER]] ]
-; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N:%.*]]
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
-; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_SPLIT:%.*]]
-; CHECK: exit.split:
-; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], [[LOOP_LATCH]] ]
-; CHECK-NEXT: br label [[EXIT]]
+; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT:%.*]]
; CHECK: exit:
-; CHECK-NEXT: [[DOTUS_PHI:%.*]] = phi i32 [ [[RED_NEXT_LCSSA]], [[EXIT_SPLIT]] ], [ [[RED_NEXT_LCSSA_US]], [[EXIT_SPLIT_US]] ]
-; CHECK-NEXT: ret i32 [[DOTUS_PHI]]
+; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], [[LOOP_LATCH]] ]
+; CHECK-NEXT: ret i32 [[RED_NEXT_LCSSA]]
;
entry:
br label %loop.header
@@ -289,45 +206,23 @@ exit:
define i32 @partial_unswitch_true_successor_noclobber(i32* noalias %ptr.1, i32* noalias %ptr.2, i32 %N) {
; CHECK-LABEL: @partial_unswitch_true_successor_noclobber(
; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[PTR_1:%.*]], align 4
-; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 100
-; CHECK-NEXT: br i1 [[TMP1]], label [[ENTRY_SPLIT_US:%.*]], label [[ENTRY_SPLIT:%.*]]
-; CHECK: entry.split.us:
-; CHECK-NEXT: br label [[LOOP_HEADER_US:%.*]]
-; CHECK: loop.header.us:
-; CHECK-NEXT: [[IV_US:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT_US]] ], [ [[IV_NEXT_US:%.*]], [[LOOP_LATCH_US:%.*]] ]
-; CHECK-NEXT: [[LV_US:%.*]] = load i32, i32* [[PTR_1]], align 4
-; CHECK-NEXT: br label [[NOCLOBBER_US:%.*]]
-; CHECK: noclobber.us:
-; CHECK-NEXT: [[GEP_1_US:%.*]] = getelementptr i32, i32* [[PTR_2:%.*]], i32 [[IV_US]]
-; CHECK-NEXT: store i32 [[LV_US]], i32* [[GEP_1_US]], align 4
-; CHECK-NEXT: br label [[LOOP_LATCH_US]]
-; CHECK: loop.latch.us:
-; CHECK-NEXT: [[C_US:%.*]] = icmp ult i32 [[IV_US]], [[N:%.*]]
-; CHECK-NEXT: [[IV_NEXT_US]] = add i32 [[IV_US]], 1
-; CHECK-NEXT: br i1 [[C_US]], label [[LOOP_HEADER_US]], label [[EXIT_SPLIT_US:%.*]]
-; CHECK: exit.split.us:
-; CHECK-NEXT: br label [[EXIT:%.*]]
-; CHECK: entry.split:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
-; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
-; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR_1]], align 4
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR_1:%.*]], align 4
; CHECK-NEXT: [[SC:%.*]] = icmp eq i32 [[LV]], 100
; CHECK-NEXT: br i1 [[SC]], label [[NOCLOBBER:%.*]], label [[CLOBBER:%.*]]
; CHECK: noclobber:
-; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr i32, i32* [[PTR_2]], i32 [[IV]]
+; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr i32, i32* [[PTR_2:%.*]], i32 [[IV]]
; CHECK-NEXT: store i32 [[LV]], i32* [[GEP_1]], align 4
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: clobber:
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
-; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N:%.*]]
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
-; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_SPLIT:%.*]]
-; CHECK: exit.split:
-; CHECK-NEXT: br label [[EXIT]]
+; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: ret i32 10
;
@@ -606,26 +501,9 @@ define i32 @partial_unswitch_true_successor_preheader_insertion(i32* %ptr, i32 %
; CHECK-NEXT: [[EC:%.*]] = icmp ne i32* [[PTR:%.*]], null
; CHECK-NEXT: br i1 [[EC]], label [[LOOP_PH:%.*]], label [[EXIT:%.*]]
; CHECK: loop.ph:
-; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[PTR]], align 4
-; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 100
-; CHECK-NEXT: br i1 [[TMP1]], label [[LOOP_PH_SPLIT_US:%.*]], label [[LOOP_PH_SPLIT:%.*]]
-; CHECK: loop.ph.split.us:
-; CHECK-NEXT: br label [[LOOP_HEADER_US:%.*]]
-; CHECK: loop.header.us:
-; CHECK-NEXT: [[IV_US:%.*]] = phi i32 [ 0, [[LOOP_PH_SPLIT_US]] ], [ [[IV_NEXT_US:%.*]], [[LOOP_LATCH_US:%.*]] ]
-; CHECK-NEXT: br label [[NOCLOBBER_US:%.*]]
-; CHECK: noclobber.us:
-; CHECK-NEXT: br label [[LOOP_LATCH_US]]
-; CHECK: loop.latch.us:
-; CHECK-NEXT: [[C_US:%.*]] = icmp ult i32 [[IV_US]], [[N:%.*]]
-; CHECK-NEXT: [[IV_NEXT_US]] = add i32 [[IV_US]], 1
-; CHECK-NEXT: br i1 [[C_US]], label [[LOOP_HEADER_US]], label [[EXIT_LOOPEXIT_SPLIT_US:%.*]]
-; CHECK: exit.loopexit.split.us:
-; CHECK-NEXT: br label [[EXIT_LOOPEXIT:%.*]]
-; CHECK: loop.ph.split:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
-; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[LOOP_PH_SPLIT]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[LOOP_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR]], align 4
; CHECK-NEXT: [[SC:%.*]] = icmp eq i32 [[LV]], 100
; CHECK-NEXT: br i1 [[SC]], label [[NOCLOBBER:%.*]], label [[CLOBBER:%.*]]
@@ -635,11 +513,9 @@ define i32 @partial_unswitch_true_successor_preheader_insertion(i32* %ptr, i32 %
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
-; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N:%.*]]
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
-; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_LOOPEXIT_SPLIT:%.*]]
-; CHECK: exit.loopexit.split:
-; CHECK-NEXT: br label [[EXIT_LOOPEXIT]]
+; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_LOOPEXIT:%.*]]
; CHECK: exit.loopexit:
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
@@ -682,27 +558,10 @@ define i32 @partial_unswitch_true_successor_insert_point(i32* %ptr, i32 %N) {
; CHECK-LABEL: @partial_unswitch_true_successor_insert_point(
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @clobber()
-; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[PTR:%.*]], align 4
-; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 100
-; CHECK-NEXT: br i1 [[TMP1]], label [[ENTRY_SPLIT_US:%.*]], label [[ENTRY_SPLIT:%.*]]
-; CHECK: entry.split.us:
-; CHECK-NEXT: br label [[LOOP_HEADER_US:%.*]]
-; CHECK: loop.header.us:
-; CHECK-NEXT: [[IV_US:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT_US]] ], [ [[IV_NEXT_US:%.*]], [[LOOP_LATCH_US:%.*]] ]
-; CHECK-NEXT: br label [[NOCLOBBER_US:%.*]]
-; CHECK: noclobber.us:
-; CHECK-NEXT: br label [[LOOP_LATCH_US]]
-; CHECK: loop.latch.us:
-; CHECK-NEXT: [[C_US:%.*]] = icmp ult i32 [[IV_US]], [[N:%.*]]
-; CHECK-NEXT: [[IV_NEXT_US]] = add i32 [[IV_US]], 1
-; CHECK-NEXT: br i1 [[C_US]], label [[LOOP_HEADER_US]], label [[EXIT_SPLIT_US:%.*]]
-; CHECK: exit.split.us:
-; CHECK-NEXT: br label [[EXIT:%.*]]
-; CHECK: entry.split:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
-; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
-; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR]], align 4
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR:%.*]], align 4
; CHECK-NEXT: [[SC:%.*]] = icmp eq i32 [[LV]], 100
; CHECK-NEXT: br i1 [[SC]], label [[NOCLOBBER:%.*]], label [[CLOBBER:%.*]]
; CHECK: noclobber:
@@ -711,11 +570,9 @@ define i32 @partial_unswitch_true_successor_insert_point(i32* %ptr, i32 %N) {
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
-; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N:%.*]]
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
-; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_SPLIT:%.*]]
-; CHECK: exit.split:
-; CHECK-NEXT: br label [[EXIT]]
+; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: ret i32 10
;
@@ -751,28 +608,10 @@ exit:
define i32 @partial_unswitch_true_successor_hoist_invariant(i32* %ptr, i32 %N) {
; CHECK-LABEL: @partial_unswitch_true_successor_hoist_invariant(
; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TMP0:%.*]] = getelementptr i32, i32* [[PTR:%.*]], i64 1
-; CHECK-NEXT: [[TMP1:%.*]] = load i32, i32* [[TMP0]], align 4
-; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 100
-; CHECK-NEXT: br i1 [[TMP2]], label [[ENTRY_SPLIT_US:%.*]], label [[ENTRY_SPLIT:%.*]]
-; CHECK: entry.split.us:
-; CHECK-NEXT: br label [[LOOP_HEADER_US:%.*]]
-; CHECK: loop.header.us:
-; CHECK-NEXT: [[IV_US:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT_US]] ], [ [[IV_NEXT_US:%.*]], [[LOOP_LATCH_US:%.*]] ]
-; CHECK-NEXT: br label [[NOCLOBBER_US:%.*]]
-; CHECK: noclobber.us:
-; CHECK-NEXT: br label [[LOOP_LATCH_US]]
-; CHECK: loop.latch.us:
-; CHECK-NEXT: [[C_US:%.*]] = icmp ult i32 [[IV_US]], [[N:%.*]]
-; CHECK-NEXT: [[IV_NEXT_US]] = add i32 [[IV_US]], 1
-; CHECK-NEXT: br i1 [[C_US]], label [[LOOP_HEADER_US]], label [[EXIT_SPLIT_US:%.*]]
-; CHECK: exit.split.us:
-; CHECK-NEXT: br label [[EXIT:%.*]]
-; CHECK: entry.split:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
-; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
-; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32, i32* [[PTR]], i64 1
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32, i32* [[PTR:%.*]], i64 1
; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[GEP]], align 4
; CHECK-NEXT: [[SC:%.*]] = icmp eq i32 [[LV]], 100
; CHECK-NEXT: br i1 [[SC]], label [[NOCLOBBER:%.*]], label [[CLOBBER:%.*]]
@@ -782,11 +621,9 @@ define i32 @partial_unswitch_true_successor_hoist_invariant(i32* %ptr, i32 %N) {
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
-; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N:%.*]]
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
-; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_SPLIT:%.*]]
-; CHECK: exit.split:
-; CHECK-NEXT: br label [[EXIT]]
+; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: ret i32 10
;
@@ -1046,36 +883,19 @@ exit:
define i32 @partial_unswitch_true_to_latch(i32* %ptr, i32 %N) {
; CHECK-LABEL: @partial_unswitch_true_to_latch(
; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[PTR:%.*]], align 4
-; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 100
-; CHECK-NEXT: br i1 [[TMP1]], label [[ENTRY_SPLIT_US:%.*]], label [[ENTRY_SPLIT:%.*]]
-; CHECK: entry.split.us:
-; CHECK-NEXT: br label [[LOOP_HEADER_US:%.*]]
-; CHECK: loop.header.us:
-; CHECK-NEXT: [[IV_US:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT_US]] ], [ [[IV_NEXT_US:%.*]], [[LOOP_LATCH_US:%.*]] ]
-; CHECK-NEXT: br label [[LOOP_LATCH_US]]
-; CHECK: loop.latch.us:
-; CHECK-NEXT: [[C_US:%.*]] = icmp ult i32 [[IV_US]], [[N:%.*]]
-; CHECK-NEXT: [[IV_NEXT_US]] = add i32 [[IV_US]], 1
-; CHECK-NEXT: br i1 [[C_US]], label [[LOOP_HEADER_US]], label [[EXIT_SPLIT_US:%.*]]
-; CHECK: exit.split.us:
-; CHECK-NEXT: br label [[EXIT:%.*]]
-; CHECK: entry.split:
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
-; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY_SPLIT]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
-; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR]], align 4
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR:%.*]], align 4
; CHECK-NEXT: [[SC:%.*]] = icmp eq i32 [[LV]], 100
; CHECK-NEXT: br i1 [[SC]], label [[LOOP_LATCH]], label [[CLOBBER:%.*]]
; CHECK: clobber:
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
-; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[IV]], [[N:%.*]]
; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1
-; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT_SPLIT:%.*]]
-; CHECK: exit.split:
-; CHECK-NEXT: br label [[EXIT]]
+; CHECK-NEXT: br i1 [[C]], label [[LOOP_HEADER]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: ret i32 10
;
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