[llvm] 82aeec6 - [ConstraintElim] Add additional induction phi tests with end argument.
Florian Hahn via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 28 13:11:04 PDT 2023
Author: Florian Hahn
Date: 2023-06-28T21:10:44+01:00
New Revision: 82aeec6570aa4058677b4d8a57e88878c44258e2
URL: https://github.com/llvm/llvm-project/commit/82aeec6570aa4058677b4d8a57e88878c44258e2
DIFF: https://github.com/llvm/llvm-project/commit/82aeec6570aa4058677b4d8a57e88878c44258e2.diff
LOG: [ConstraintElim] Add additional induction phi tests with end argument.
Extra tests for D152730 with different GEP step sizes and the end pointer
being an argument.
Added:
Modified:
llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll
Removed:
################################################################################
diff --git a/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll b/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll
index 483e9836bbe8c..2d33939f1ded9 100644
--- a/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll
+++ b/llvm/test/Transforms/ConstraintElimination/monotonic-pointer-phis.ll
@@ -382,6 +382,220 @@ exit:
ret void
}
+define void @test_monotonic_ptr_iv_inc_1_gep_step_size_i8_unknown_end_ptr(ptr %start, ptr %end) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_gep_step_size_i8_unknown_end_ptr(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[START_ULT_END:%.*]] = icmp uge ptr [[START:%.*]], [[END:%.*]]
+; CHECK-NEXT: br i1 [[START_ULT_END]], 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]], [[END]]
+; 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]], [[END]]
+; 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 i8, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %start.ult.end = icmp uge ptr %start, %end
+ br i1 %start.ult.end, 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, %end
+ 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, %end
+ %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 i8, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
+define void @test_monotonic_ptr_iv_inc_1_gep_step_size_i32_unknown_end_ptr(ptr %start, ptr %end) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_gep_step_size_i32_unknown_end_ptr(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[START_ULT_END:%.*]] = icmp uge ptr [[START:%.*]], [[END:%.*]]
+; CHECK-NEXT: br i1 [[START_ULT_END]], 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]], [[END]]
+; 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]], [[END]]
+; 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:
+ %start.ult.end = icmp uge ptr %start, %end
+ br i1 %start.ult.end, 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, %end
+ 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, %end
+ %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_1_gep_step_size_i8_unknown_end_ptr_with_early_exit(ptr %start, ptr %end) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_gep_step_size_i8_unknown_end_ptr_with_early_exit(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[START_ULT_END:%.*]] = icmp uge ptr [[START:%.*]], [[END:%.*]]
+; CHECK-NEXT: br i1 [[START_ULT_END]], 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]], [[END]]
+; 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]], [[END]]
+; 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 i8, ptr [[PTR_IV]], i16 1
+; CHECK-NEXT: br label [[LOOP_HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ %start.ult.end = icmp uge ptr %start, %end
+ br i1 %start.ult.end, 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, %end
+ 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, %end
+ %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 i8, ptr %ptr.iv, i16 1
+ br label %loop.header
+
+exit:
+ ret void
+}
+
+define void @test_monotonic_ptr_iv_inc_1_gep_step_size_i32_unknown_end_ptr_with_early_exit(ptr %start, ptr %end) {
+; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_gep_step_size_i32_unknown_end_ptr_with_early_exit(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[START_ULT_END:%.*]] = icmp uge ptr [[START:%.*]], [[END:%.*]]
+; CHECK-NEXT: br i1 [[START_ULT_END]], 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]], [[END]]
+; 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]], [[END]]
+; 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:
+ %start.ult.end = icmp uge ptr %start, %end
+ br i1 %start.ult.end, 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, %end
+ 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, %end
+ %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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