[llvm] 3699931 - [ConstraintElim] Add tests with phis and different alloc sizes/end ptrs.
Florian Hahn via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 28 15:12:21 PDT 2023
Author: Florian Hahn
Date: 2023-06-28T23:12:06+01:00
New Revision: 36999318f09122fa41baff838f46c753db078275
URL: https://github.com/llvm/llvm-project/commit/36999318f09122fa41baff838f46c753db078275
DIFF: https://github.com/llvm/llvm-project/commit/36999318f09122fa41baff838f46c753db078275.diff
LOG: [ConstraintElim] Add tests with phis and different alloc sizes/end ptrs.
Extra tests for D152730
Added:
llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis-custom-datalayout.ll
Modified:
llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll
Removed:
################################################################################
diff --git a/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis-custom-datalayout.ll b/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis-custom-datalayout.ll
new file mode 100644
index 0000000000000..8b05eec631bce
--- /dev/null
+++ b/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis-custom-datalayout.ll
@@ -0,0 +1,453 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
+
+; NOTE: The custom datalayout defines i32 to be 64 bit aligned.
+
+target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i32:64:64-f80:128-n8:16:32:64-S128"
+
+declare void @use(ptr)
+declare i1 @cond()
+
+define void @test_monotonic_ptr_iv_inc_1_element_types_with_
diff erent_alloc_type_sizes(ptr %start, i16 %len) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_element_types_with_
diff erent_alloc_type_sizes(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds float, ptr [[START:%.*]], i16 [[LEN:%.*]]
+; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
+; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
+; CHECK: loop.ph:
+; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
+; CHECK: loop.header:
+; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
+; CHECK: loop.latch:
+; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
+; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i32, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %upper = getelementptr inbounds float, ptr %start, i16 %len
+ %len.neg = icmp slt i16 %len, 0
+ br i1 %len.neg, label %exit, label %loop.ph
+
+loop.ph:
+ br label %loop.header
+
+loop.header:
+ %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
+ %c = icmp eq ptr %ptr.iv, %upper
+ br i1 %c, label %exit, label %for.body
+
+for.body:
+ %t.1 = icmp uge ptr %ptr.iv, %start
+ %t.2 = icmp ult ptr %ptr.iv, %upper
+ %and = and i1 %t.1, %t.2
+ br i1 %and, label %loop.latch, label %exit
+
+loop.latch:
+ call void @use(ptr %ptr.iv)
+ %ptr.iv.next = getelementptr inbounds i32, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
+define void @test_monotonic_ptr_iv_inc_2_element_types_with_
diff erent_alloc_type_sizes(ptr %start, i16 %len) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_element_types_with_
diff erent_alloc_type_sizes(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[START:%.*]], i16 [[LEN:%.*]]
+; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
+; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
+; CHECK: loop.ph:
+; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
+; CHECK: loop.header:
+; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
+; CHECK: loop.latch:
+; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
+; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds float, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %upper = getelementptr inbounds i32, ptr %start, i16 %len
+ %len.neg = icmp slt i16 %len, 0
+ br i1 %len.neg, label %exit, label %loop.ph
+
+loop.ph:
+ br label %loop.header
+
+loop.header:
+ %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
+ %c = icmp eq ptr %ptr.iv, %upper
+ br i1 %c, label %exit, label %for.body
+
+for.body:
+ %t.1 = icmp uge ptr %ptr.iv, %start
+ %t.2 = icmp ult ptr %ptr.iv, %upper
+ %and = and i1 %t.1, %t.2
+ br i1 %and, label %loop.latch, label %exit
+
+loop.latch:
+ call void @use(ptr %ptr.iv)
+ %ptr.iv.next = getelementptr inbounds float, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
+define void @test_monotonic_ptr_iv_inc_1_
diff erent_element_types_with_same_alloc_type_sizes(ptr %start, i16 %len) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_
diff erent_element_types_with_same_alloc_type_sizes(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i5, ptr [[START:%.*]], i16 [[LEN:%.*]]
+; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
+; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
+; CHECK: loop.ph:
+; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
+; CHECK: loop.header:
+; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
+; CHECK: loop.latch:
+; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
+; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i7, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %upper = getelementptr inbounds i5, ptr %start, i16 %len
+ %len.neg = icmp slt i16 %len, 0
+ br i1 %len.neg, label %exit, label %loop.ph
+
+loop.ph:
+ br label %loop.header
+
+loop.header:
+ %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
+ %c = icmp eq ptr %ptr.iv, %upper
+ br i1 %c, label %exit, label %for.body
+
+for.body:
+ %t.1 = icmp uge ptr %ptr.iv, %start
+ %t.2 = icmp ult ptr %ptr.iv, %upper
+ %and = and i1 %t.1, %t.2
+ br i1 %and, label %loop.latch, label %exit
+
+loop.latch:
+ call void @use(ptr %ptr.iv)
+ %ptr.iv.next = getelementptr inbounds i7, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
+define void @test_monotonic_ptr_iv_inc_2_
diff erent_element_types_with_same_alloc_type_sizes(ptr %start, i16 %len) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_
diff erent_element_types_with_same_alloc_type_sizes(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i31, ptr [[START:%.*]], i16 [[LEN:%.*]]
+; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
+; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
+; CHECK: loop.ph:
+; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
+; CHECK: loop.header:
+; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
+; CHECK: loop.latch:
+; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
+; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i30, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %upper = getelementptr inbounds i31, ptr %start, i16 %len
+ %len.neg = icmp slt i16 %len, 0
+ br i1 %len.neg, label %exit, label %loop.ph
+
+loop.ph:
+ br label %loop.header
+
+loop.header:
+ %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
+ %c = icmp eq ptr %ptr.iv, %upper
+ br i1 %c, label %exit, label %for.body
+
+for.body:
+ %t.1 = icmp uge ptr %ptr.iv, %start
+ %t.2 = icmp ult ptr %ptr.iv, %upper
+ %and = and i1 %t.1, %t.2
+ br i1 %and, label %loop.latch, label %exit
+
+loop.latch:
+ call void @use(ptr %ptr.iv)
+ %ptr.iv.next = getelementptr inbounds i30, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
+define void @test_monotonic_ptr_iv_inc_1_element_types_with_
diff erent_alloc_type_sizes_with_early_exit(ptr %start, i16 %len) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_element_types_with_
diff erent_alloc_type_sizes_with_early_exit(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds float, ptr [[START:%.*]], i16 [[LEN:%.*]]
+; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
+; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
+; CHECK: loop.ph:
+; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
+; CHECK: loop.header:
+; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
+; CHECK-NEXT: br i1 [[C_1]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
+; CHECK: loop.next:
+; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
+; CHECK: loop.latch:
+; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
+; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i32, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %upper = getelementptr inbounds float, ptr %start, i16 %len
+ %len.neg = icmp slt i16 %len, 0
+ br i1 %len.neg, label %exit, label %loop.ph
+
+loop.ph:
+ br label %loop.header
+
+loop.header:
+ %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
+ %c = icmp eq ptr %ptr.iv, %upper
+ br i1 %c, label %exit, label %for.body
+
+for.body:
+ %c.1 = call i1 @cond()
+ br i1 %c.1, label %loop.next, label %exit
+
+loop.next:
+ %t.1 = icmp uge ptr %ptr.iv, %start
+ %t.2 = icmp ult ptr %ptr.iv, %upper
+ %and = and i1 %t.1, %t.2
+ br i1 %and, label %loop.latch, label %exit
+
+loop.latch:
+ call void @use(ptr %ptr.iv)
+ %ptr.iv.next = getelementptr inbounds i32, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
+define void @test_monotonic_ptr_iv_inc_2_element_types_with_
diff erent_alloc_type_sizes_with_early_exit(ptr %start, i16 %len) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_element_types_with_
diff erent_alloc_type_sizes_with_early_exit(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[START:%.*]], i16 [[LEN:%.*]]
+; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
+; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
+; CHECK: loop.ph:
+; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
+; CHECK: loop.header:
+; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
+; CHECK-NEXT: br i1 [[C_1]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
+; CHECK: loop.next:
+; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
+; CHECK: loop.latch:
+; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
+; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds float, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %upper = getelementptr inbounds i32, ptr %start, i16 %len
+ %len.neg = icmp slt i16 %len, 0
+ br i1 %len.neg, label %exit, label %loop.ph
+
+loop.ph:
+ br label %loop.header
+
+loop.header:
+ %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
+ %c = icmp eq ptr %ptr.iv, %upper
+ br i1 %c, label %exit, label %for.body
+
+for.body:
+ %c.1 = call i1 @cond()
+ br i1 %c.1, label %loop.next, label %exit
+
+loop.next:
+ %t.1 = icmp uge ptr %ptr.iv, %start
+ %t.2 = icmp ult ptr %ptr.iv, %upper
+ %and = and i1 %t.1, %t.2
+ br i1 %and, label %loop.latch, label %exit
+
+loop.latch:
+ call void @use(ptr %ptr.iv)
+ %ptr.iv.next = getelementptr inbounds float, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
+define void @test_monotonic_ptr_iv_inc_1_
diff erent_element_types_with_same_alloc_type_sizes_with_early_exit(ptr %start, i16 %len) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_
diff erent_element_types_with_same_alloc_type_sizes_with_early_exit(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i5, ptr [[START:%.*]], i16 [[LEN:%.*]]
+; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
+; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
+; CHECK: loop.ph:
+; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
+; CHECK: loop.header:
+; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
+; CHECK-NEXT: br i1 [[C_1]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
+; CHECK: loop.next:
+; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
+; CHECK: loop.latch:
+; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
+; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i7, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %upper = getelementptr inbounds i5, ptr %start, i16 %len
+ %len.neg = icmp slt i16 %len, 0
+ br i1 %len.neg, label %exit, label %loop.ph
+
+loop.ph:
+ br label %loop.header
+
+loop.header:
+ %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
+ %c = icmp eq ptr %ptr.iv, %upper
+ br i1 %c, label %exit, label %for.body
+
+for.body:
+ %c.1 = call i1 @cond()
+ br i1 %c.1, label %loop.next, label %exit
+
+loop.next:
+ %t.1 = icmp uge ptr %ptr.iv, %start
+ %t.2 = icmp ult ptr %ptr.iv, %upper
+ %and = and i1 %t.1, %t.2
+ br i1 %and, label %loop.latch, label %exit
+
+loop.latch:
+ call void @use(ptr %ptr.iv)
+ %ptr.iv.next = getelementptr inbounds i7, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
+define void @test_monotonic_ptr_iv_inc_2_
diff erent_element_types_with_same_alloc_type_sizes_with_early_exit(ptr %start, i16 %len) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_
diff erent_element_types_with_same_alloc_type_sizes_with_early_exit(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i31, ptr [[START:%.*]], i16 [[LEN:%.*]]
+; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
+; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
+; CHECK: loop.ph:
+; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
+; CHECK: loop.header:
+; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
+; CHECK-NEXT: br i1 [[C_1]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
+; CHECK: loop.next:
+; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
+; CHECK: loop.latch:
+; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
+; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i30, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %upper = getelementptr inbounds i31, ptr %start, i16 %len
+ %len.neg = icmp slt i16 %len, 0
+ br i1 %len.neg, label %exit, label %loop.ph
+
+loop.ph:
+ br label %loop.header
+
+loop.header:
+ %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
+ %c = icmp eq ptr %ptr.iv, %upper
+ br i1 %c, label %exit, label %for.body
+
+for.body:
+ %c.1 = call i1 @cond()
+ br i1 %c.1, label %loop.next, label %exit
+
+loop.next:
+ %t.1 = icmp uge ptr %ptr.iv, %start
+ %t.2 = icmp ult ptr %ptr.iv, %upper
+ %and = and i1 %t.1, %t.2
+ br i1 %and, label %loop.latch, label %exit
+
+loop.latch:
+ call void @use(ptr %ptr.iv)
+ %ptr.iv.next = getelementptr inbounds i30, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
diff --git a/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll b/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll
index 2d33939f1ded9..11f819ce4d0f7 100644
--- a/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll
+++ b/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll
@@ -596,6 +596,69 @@ exit:
ret void
}
+define void @test_monotonic_ptr_iv_inc_1_
diff erent_element_types_1_with_early_exit_and_
diff erent_upper(ptr %start, ptr %end, i16 %len) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_
diff erent_element_types_1_with_early_exit_and_
diff erent_upper(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[END:%.*]], i16 [[LEN:%.*]]
+; CHECK-NEXT: [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
+; CHECK-NEXT: br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
+; CHECK: loop.ph:
+; CHECK-NEXT: [[START_ULT_END:%.*]] = icmp ult ptr [[START:%.*]], [[UPPER]]
+; CHECK-NEXT: call void @llvm.assume(i1 [[START_ULT_END]])
+; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
+; CHECK: loop.header:
+; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
+; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
+; CHECK: for.body:
+; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
+; CHECK-NEXT: br i1 [[C_1]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
+; CHECK: loop.next:
+; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[PTR_IV]], [[START]]
+; CHECK-NEXT: [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
+; CHECK-NEXT: [[AND:%.*]] = and i1 [[T_1]], [[T_2]]
+; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
+; CHECK: loop.latch:
+; CHECK-NEXT: call void @use(ptr [[PTR_IV]])
+; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr inbounds i32, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %upper = getelementptr inbounds i32, ptr %end, i16 %len
+ %len.neg = icmp slt i16 %len, 0
+ br i1 %len.neg, label %exit, label %loop.ph
+
+loop.ph:
+ %start.ult.end = icmp ult ptr %start, %upper
+ call void @llvm.assume(i1 %start.ult.end)
+ br label %loop.header
+
+loop.header:
+ %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
+ %c = icmp eq ptr %ptr.iv, %upper
+ br i1 %c, label %exit, label %for.body
+
+for.body:
+ %c.1 = call i1 @cond()
+ br i1 %c.1, label %loop.next, label %exit
+
+loop.next:
+ %t.1 = icmp uge ptr %ptr.iv, %start
+ %t.2 = icmp ult ptr %ptr.iv, %upper
+ %and = and i1 %t.1, %t.2
+ br i1 %and, label %loop.latch, label %exit
+
+loop.latch:
+ call void @use(ptr %ptr.iv)
+ %ptr.iv.next = getelementptr inbounds i32, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
define void @test_ptr_iv_upper_may_be_less_than_start(ptr %start, i16 %len) {
; CHECK-LABEL: @test_ptr_iv_upper_may_be_less_than_start(
; CHECK-NEXT: entry:
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