From 2ae0f8d60083d39b6df6a1b4d073970fba3e4a0a Mon Sep 17 00:00:00 2001 From: Florian Hahn Date: Thu, 28 Jan 2021 10:35:30 +0000 Subject: [PATCH] [ConstraintElimination] Add tests for ICMP_EQ predicates. Pre-commit test coverage for conditions with EQ predicates. --- llvm/test/Transforms/ConstraintElimination/eq.ll | 378 +++++++++++++++++++++++ 1 file changed, 378 insertions(+) create mode 100644 llvm/test/Transforms/ConstraintElimination/eq.ll diff --git a/llvm/test/Transforms/ConstraintElimination/eq.ll b/llvm/test/Transforms/ConstraintElimination/eq.ll new file mode 100644 index 0000000..4015d75 --- /dev/null +++ b/llvm/test/Transforms/ConstraintElimination/eq.ll @@ -0,0 +1,378 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt -constraint-elimination -S %s | FileCheck %s + +define i1 @test_eq_1(i8 %a, i8 %b) { +; CHECK-LABEL: @test_eq_1( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[A:%.*]], [[B:%.*]] +; CHECK-NEXT: br i1 [[CMP]], label [[THEN:%.*]], label [[ELSE:%.*]] +; CHECK: then: +; CHECK-NEXT: [[T_1:%.*]] = icmp uge i8 [[A]], [[B]] +; CHECK-NEXT: [[T_2:%.*]] = icmp ule i8 [[A]], [[B]] +; CHECK-NEXT: [[RES_1:%.*]] = xor i1 [[T_1]], [[T_2]] +; CHECK-NEXT: [[T_3:%.*]] = icmp eq i8 [[A]], [[B]] +; CHECK-NEXT: [[RES_2:%.*]] = xor i1 [[RES_1]], [[T_3]] +; CHECK-NEXT: [[T_4:%.*]] = icmp eq i8 [[B]], [[A]] +; CHECK-NEXT: [[RES_3:%.*]] = xor i1 [[RES_2]], [[T_4]] +; CHECK-NEXT: [[F_1:%.*]] = icmp ugt i8 [[B]], [[A]] +; CHECK-NEXT: [[RES_4:%.*]] = xor i1 [[RES_3]], [[F_1]] +; CHECK-NEXT: [[F_2:%.*]] = icmp ult i8 [[B]], [[A]] +; CHECK-NEXT: [[RES_5:%.*]] = xor i1 [[RES_4]], [[F_2]] +; CHECK-NEXT: [[C_1:%.*]] = icmp ult i8 [[B]], 99 +; CHECK-NEXT: [[RES_6:%.*]] = xor i1 [[RES_5]], [[C_1]] +; CHECK-NEXT: ret i1 [[RES_6]] +; CHECK: else: +; CHECK-NEXT: [[F_3:%.*]] = icmp eq i8 [[A]], [[B]] +; CHECK-NEXT: [[F_4:%.*]] = icmp eq i8 [[B]], [[A]] +; CHECK-NEXT: [[RES_7:%.*]] = xor i1 [[F_3]], [[F_4]] +; CHECK-NEXT: [[C_2:%.*]] = icmp ult i8 [[B]], 99 +; CHECK-NEXT: [[RES_8:%.*]] = xor i1 [[RES_7]], [[C_2]] +; CHECK-NEXT: [[C_3:%.*]] = icmp uge i8 [[A]], [[B]] +; CHECK-NEXT: [[RES_9:%.*]] = xor i1 [[RES_8]], [[C_3]] +; CHECK-NEXT: [[C_4:%.*]] = icmp ule i8 [[A]], [[B]] +; CHECK-NEXT: [[RES_10:%.*]] = xor i1 [[RES_9]], [[C_4]] +; CHECK-NEXT: [[C_5:%.*]] = icmp ugt i8 [[B]], [[A]] +; CHECK-NEXT: [[RES_11:%.*]] = xor i1 [[RES_10]], [[C_5]] +; CHECK-NEXT: [[C_6:%.*]] = icmp ult i8 [[B]], [[A]] +; CHECK-NEXT: [[RES_12:%.*]] = xor i1 [[RES_11]], [[C_6]] +; CHECK-NEXT: ret i1 [[RES_12]] +; +entry: + %cmp = icmp eq i8 %a, %b + br i1 %cmp, label %then, label %else + +then: + %t.1 = icmp uge i8 %a, %b + %t.2 = icmp ule i8 %a, %b + %res.1 = xor i1 %t.1, %t.2 + + %t.3 = icmp eq i8 %a, %b + %res.2 = xor i1 %res.1, %t.3 + + %t.4 = icmp eq i8 %b, %a + %res.3 = xor i1 %res.2, %t.4 + + %f.1 = icmp ugt i8 %b, %a + %res.4 = xor i1 %res.3, %f.1 + + %f.2 = icmp ult i8 %b, %a + %res.5 = xor i1 %res.4, %f.2 + + %c.1 = icmp ult i8 %b, 99 + %res.6 = xor i1 %res.5, %c.1 + ret i1 %res.6 + +else: + %f.3 = icmp eq i8 %a, %b + %f.4 = icmp eq i8 %b, %a + %res.7 = xor i1 %f.3, %f.4 + + %c.2 = icmp ult i8 %b, 99 + %res.8 = xor i1 %res.7, %c.2 + + %c.3 = icmp uge i8 %a, %b + %res.9 = xor i1 %res.8, %c.3 + + %c.4 = icmp ule i8 %a, %b + %res.10 = xor i1 %res.9, %c.4 + + %c.5 = icmp ugt i8 %b, %a + %res.11 = xor i1 %res.10, %c.5 + + %c.6 = icmp ult i8 %b, %a + %res.12 = xor i1 %res.11, %c.6 + ret i1 %res.12 +} + +define i1 @test_eq_2(i8 %a, i8 %b) { +; CHECK-LABEL: @test_eq_2( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[PRE_1:%.*]] = icmp eq i8 [[A:%.*]], [[B:%.*]] +; CHECK-NEXT: br i1 [[PRE_1]], label [[THEN:%.*]], label [[ELSE:%.*]] +; CHECK: then: +; CHECK-NEXT: [[PRE_3:%.*]] = icmp ult i8 [[B]], 100 +; CHECK-NEXT: br i1 [[PRE_3]], label [[THEN_THEN:%.*]], label [[THEN_ELSE:%.*]] +; CHECK: then.then: +; CHECK-NEXT: [[T_1:%.*]] = icmp ult i8 [[A]], 100 +; CHECK-NEXT: [[T_2:%.*]] = icmp ult i8 [[B]], 100 +; CHECK-NEXT: [[XOR_1:%.*]] = xor i1 [[T_1]], true +; CHECK-NEXT: [[F_1:%.*]] = icmp uge i8 [[A]], 100 +; CHECK-NEXT: [[XOR_2:%.*]] = xor i1 [[XOR_1]], [[F_1]] +; CHECK-NEXT: [[F_2:%.*]] = icmp uge i8 [[B]], 100 +; CHECK-NEXT: [[XOR_3:%.*]] = xor i1 [[XOR_2]], false +; CHECK-NEXT: [[F_3_1:%.*]] = icmp ugt i8 [[A]], 99 +; CHECK-NEXT: [[XOR_4:%.*]] = xor i1 [[XOR_3]], [[F_3_1]] +; CHECK-NEXT: [[C_1:%.*]] = icmp ult i8 [[A]], 99 +; CHECK-NEXT: [[XOR_5:%.*]] = xor i1 [[XOR_4]], [[C_1]] +; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i8 [[A]], 98 +; CHECK-NEXT: [[XOR_6:%.*]] = xor i1 [[XOR_5]], [[C_1]] +; CHECK-NEXT: ret i1 [[XOR_6]] +; CHECK: then.else: +; CHECK-NEXT: [[F_4:%.*]] = icmp ult i8 [[A]], 100 +; CHECK-NEXT: [[F_5:%.*]] = icmp ult i8 [[B]], 100 +; CHECK-NEXT: [[XOR_7:%.*]] = xor i1 [[F_4]], false +; CHECK-NEXT: [[T_3:%.*]] = icmp uge i8 [[A]], 100 +; CHECK-NEXT: [[XOR_8:%.*]] = xor i1 [[XOR_7]], [[T_3]] +; CHECK-NEXT: [[T_4:%.*]] = icmp uge i8 [[B]], 100 +; CHECK-NEXT: [[XOR_9:%.*]] = xor i1 [[XOR_8]], true +; CHECK-NEXT: [[T_5:%.*]] = icmp ugt i8 [[A]], 99 +; CHECK-NEXT: [[XOR_10:%.*]] = xor i1 [[XOR_9]], [[T_5]] +; CHECK-NEXT: [[C_3:%.*]] = icmp ult i8 [[A]], 99 +; CHECK-NEXT: [[XOR_11:%.*]] = xor i1 [[XOR_10]], [[C_3]] +; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i8 [[A]], 98 +; CHECK-NEXT: [[XOR_12:%.*]] = xor i1 [[XOR_11]], [[C_4]] +; CHECK-NEXT: ret i1 [[XOR_12]] +; CHECK: else: +; CHECK-NEXT: [[CMP_2:%.*]] = icmp ult i8 [[A]], 100 +; CHECK-NEXT: ret i1 [[CMP_2]] +; +entry: + %pre.1 = icmp eq i8 %a, %b + br i1 %pre.1, label %then, label %else + +then: + %pre.3 = icmp ult i8 %b, 100 + br i1 %pre.3, label %then.then, label %then.else + +then.then: + %t.1 = icmp ult i8 %a, 100 + %t.2 = icmp ult i8 %b, 100 + %xor.1 = xor i1 %t.1, %t.2 + + %f.1 = icmp uge i8 %a, 100 + %xor.2 = xor i1 %xor.1, %f.1 + + %f.2 = icmp uge i8 %b, 100 + %xor.3 = xor i1 %xor.2, %f.2 + + %f.3.1 = icmp ugt i8 %a, 99 + %xor.4 = xor i1 %xor.3, %f.3.1 + + %c.1 = icmp ult i8 %a, 99 + %xor.5 = xor i1 %xor.4, %c.1 + + %c.2 = icmp ugt i8 %a, 98 + %xor.6 = xor i1 %xor.5, %c.1 + + ret i1 %xor.6 + +then.else: + %f.4 = icmp ult i8 %a, 100 + %f.5 = icmp ult i8 %b, 100 + %xor.7 = xor i1 %f.4, %f.5 + + %t.3 = icmp uge i8 %a, 100 + %xor.8 = xor i1 %xor.7, %t.3 + + %t.4 = icmp uge i8 %b, 100 + %xor.9 = xor i1 %xor.8, %t.4 + + %t.5 = icmp ugt i8 %a, 99 + %xor.10 = xor i1 %xor.9, %t.5 + + %c.3 = icmp ult i8 %a, 99 + %xor.11 = xor i1 %xor.10, %c.3 + + %c.4 = icmp ugt i8 %a, 98 + %xor.12 = xor i1 %xor.11, %c.4 + + ret i1 %xor.12 + +else: + %cmp.2 = icmp ult i8 %a, 100 + ret i1 %cmp.2 +} + +; Test of explicitly using uge & ule instead of eq. +define i1 @test_eq_as_uge_ule_(i8 %a, i8 %b) { +; CHECK-LABEL: @test_eq_as_uge_ule_( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[PRE_1:%.*]] = icmp uge i8 [[A:%.*]], [[B:%.*]] +; CHECK-NEXT: [[PRE_2:%.*]] = icmp ule i8 [[A]], [[B]] +; CHECK-NEXT: [[PRE_AND:%.*]] = and i1 [[PRE_1]], [[PRE_2]] +; CHECK-NEXT: br i1 [[PRE_AND]], label [[THEN:%.*]], label [[ELSE:%.*]] +; CHECK: then: +; CHECK-NEXT: [[PRE_3:%.*]] = icmp ult i8 [[B]], 100 +; CHECK-NEXT: br i1 [[PRE_3]], label [[THEN_THEN:%.*]], label [[THEN_ELSE:%.*]] +; CHECK: then.then: +; CHECK-NEXT: [[T_1:%.*]] = icmp ult i8 [[A]], 100 +; CHECK-NEXT: [[T_2:%.*]] = icmp ult i8 [[B]], 100 +; CHECK-NEXT: [[XOR_1:%.*]] = xor i1 true, true +; CHECK-NEXT: [[F_1:%.*]] = icmp uge i8 [[A]], 100 +; CHECK-NEXT: [[XOR_2:%.*]] = xor i1 [[XOR_1]], false +; CHECK-NEXT: [[F_2:%.*]] = icmp uge i8 [[B]], 100 +; CHECK-NEXT: [[XOR_3:%.*]] = xor i1 [[XOR_2]], false +; CHECK-NEXT: [[F_3_1:%.*]] = icmp ugt i8 [[A]], 99 +; CHECK-NEXT: [[XOR_4:%.*]] = xor i1 [[XOR_3]], false +; CHECK-NEXT: [[C_1:%.*]] = icmp ult i8 [[A]], 99 +; CHECK-NEXT: [[XOR_5:%.*]] = xor i1 [[XOR_4]], [[C_1]] +; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i8 [[A]], 98 +; CHECK-NEXT: [[XOR_6:%.*]] = xor i1 [[XOR_5]], [[C_1]] +; CHECK-NEXT: ret i1 [[XOR_6]] +; CHECK: then.else: +; CHECK-NEXT: [[F_4:%.*]] = icmp ult i8 [[A]], 100 +; CHECK-NEXT: [[F_5:%.*]] = icmp ult i8 [[B]], 100 +; CHECK-NEXT: [[XOR_7:%.*]] = xor i1 false, false +; CHECK-NEXT: [[T_3:%.*]] = icmp uge i8 [[A]], 100 +; CHECK-NEXT: [[XOR_8:%.*]] = xor i1 [[XOR_7]], true +; CHECK-NEXT: [[T_4:%.*]] = icmp uge i8 [[B]], 100 +; CHECK-NEXT: [[XOR_9:%.*]] = xor i1 [[XOR_8]], true +; CHECK-NEXT: [[T_5:%.*]] = icmp ugt i8 [[A]], 99 +; CHECK-NEXT: [[XOR_10:%.*]] = xor i1 [[XOR_9]], true +; CHECK-NEXT: [[C_3:%.*]] = icmp ult i8 [[A]], 99 +; CHECK-NEXT: [[XOR_11:%.*]] = xor i1 [[XOR_10]], false +; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i8 [[A]], 98 +; CHECK-NEXT: [[XOR_12:%.*]] = xor i1 [[XOR_11]], true +; CHECK-NEXT: ret i1 [[XOR_12]] +; CHECK: else: +; CHECK-NEXT: [[CMP_2:%.*]] = icmp ult i8 [[A]], 100 +; CHECK-NEXT: ret i1 [[CMP_2]] +; +entry: + %pre.1 = icmp uge i8 %a, %b + %pre.2 = icmp ule i8 %a, %b + %pre.and = and i1 %pre.1, %pre.2 + br i1 %pre.and, label %then, label %else + +then: + %pre.3 = icmp ult i8 %b, 100 + br i1 %pre.3, label %then.then, label %then.else + +then.then: + %t.1 = icmp ult i8 %a, 100 + %t.2 = icmp ult i8 %b, 100 + %xor.1 = xor i1 %t.1, %t.2 + + %f.1 = icmp uge i8 %a, 100 + %xor.2 = xor i1 %xor.1, %f.1 + + %f.2 = icmp uge i8 %b, 100 + %xor.3 = xor i1 %xor.2, %f.2 + + %f.3.1 = icmp ugt i8 %a, 99 + %xor.4 = xor i1 %xor.3, %f.3.1 + + %c.1 = icmp ult i8 %a, 99 + %xor.5 = xor i1 %xor.4, %c.1 + + %c.2 = icmp ugt i8 %a, 98 + %xor.6 = xor i1 %xor.5, %c.1 + + ret i1 %xor.6 + +then.else: + %f.4 = icmp ult i8 %a, 100 + %f.5 = icmp ult i8 %b, 100 + %xor.7 = xor i1 %f.4, %f.5 + + %t.3 = icmp uge i8 %a, 100 + %xor.8 = xor i1 %xor.7, %t.3 + + %t.4 = icmp uge i8 %b, 100 + %xor.9 = xor i1 %xor.8, %t.4 + + %t.5 = icmp ugt i8 %a, 99 + %xor.10 = xor i1 %xor.9, %t.5 + + %c.3 = icmp ult i8 %a, 99 + %xor.11 = xor i1 %xor.10, %c.3 + + %c.4 = icmp ugt i8 %a, 98 + %xor.12 = xor i1 %xor.11, %c.4 + + ret i1 %xor.12 + +else: + %cmp.2 = icmp ult i8 %a, 100 + ret i1 %cmp.2 +} + + +define i1 @test_eq_ult_and(i8 %a, i8 %b) { +; CHECK-LABEL: @test_eq_ult_and( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[PRE_1:%.*]] = icmp eq i8 [[A:%.*]], [[B:%.*]] +; CHECK-NEXT: [[PRE_2:%.*]] = icmp ult i8 [[B]], 100 +; CHECK-NEXT: [[PRE_AND:%.*]] = and i1 [[PRE_1]], [[PRE_2]] +; CHECK-NEXT: br i1 [[PRE_AND]], label [[THEN:%.*]], label [[ELSE:%.*]] +; CHECK: then: +; CHECK-NEXT: [[T_1:%.*]] = icmp ult i8 [[A]], 100 +; CHECK-NEXT: [[T_2:%.*]] = icmp ult i8 [[B]], 100 +; CHECK-NEXT: [[XOR_1:%.*]] = xor i1 [[T_1]], true +; CHECK-NEXT: [[F_1:%.*]] = icmp uge i8 [[A]], 100 +; CHECK-NEXT: [[XOR_2:%.*]] = xor i1 [[XOR_1]], [[F_1]] +; CHECK-NEXT: [[F_2:%.*]] = icmp uge i8 [[B]], 100 +; CHECK-NEXT: [[XOR_3:%.*]] = xor i1 [[XOR_2]], false +; CHECK-NEXT: [[F_3_1:%.*]] = icmp ugt i8 [[A]], 99 +; CHECK-NEXT: [[XOR_4:%.*]] = xor i1 [[XOR_3]], [[F_3_1]] +; CHECK-NEXT: [[C_1:%.*]] = icmp ult i8 [[A]], 99 +; CHECK-NEXT: [[XOR_5:%.*]] = xor i1 [[XOR_4]], [[C_1]] +; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i8 [[A]], 98 +; CHECK-NEXT: [[XOR_6:%.*]] = xor i1 [[XOR_5]], [[C_1]] +; CHECK-NEXT: ret i1 [[XOR_6]] +; CHECK: else: +; CHECK-NEXT: [[F_4:%.*]] = icmp ult i8 [[A]], 100 +; CHECK-NEXT: [[F_5:%.*]] = icmp ult i8 [[B]], 100 +; CHECK-NEXT: [[XOR_7:%.*]] = xor i1 [[F_4]], [[F_5]] +; CHECK-NEXT: [[T_3:%.*]] = icmp uge i8 [[A]], 100 +; CHECK-NEXT: [[XOR_8:%.*]] = xor i1 [[XOR_7]], [[T_3]] +; CHECK-NEXT: [[T_4:%.*]] = icmp uge i8 [[B]], 100 +; CHECK-NEXT: [[XOR_9:%.*]] = xor i1 [[XOR_8]], [[T_4]] +; CHECK-NEXT: [[T_5:%.*]] = icmp ugt i8 [[A]], 99 +; CHECK-NEXT: [[XOR_10:%.*]] = xor i1 [[XOR_9]], [[T_5]] +; CHECK-NEXT: [[C_3:%.*]] = icmp ult i8 [[A]], 99 +; CHECK-NEXT: [[XOR_11:%.*]] = xor i1 [[XOR_10]], [[C_3]] +; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i8 [[A]], 98 +; CHECK-NEXT: [[XOR_12:%.*]] = xor i1 [[XOR_11]], [[C_4]] +; CHECK-NEXT: ret i1 [[XOR_12]] +; +entry: + %pre.1 = icmp eq i8 %a, %b + %pre.2 = icmp ult i8 %b, 100 + %pre.and = and i1 %pre.1, %pre.2 + br i1 %pre.and, label %then, label %else + +then: + %t.1 = icmp ult i8 %a, 100 + %t.2 = icmp ult i8 %b, 100 + %xor.1 = xor i1 %t.1, %t.2 + + %f.1 = icmp uge i8 %a, 100 + %xor.2 = xor i1 %xor.1, %f.1 + + %f.2 = icmp uge i8 %b, 100 + %xor.3 = xor i1 %xor.2, %f.2 + + %f.3.1 = icmp ugt i8 %a, 99 + %xor.4 = xor i1 %xor.3, %f.3.1 + + %c.1 = icmp ult i8 %a, 99 + %xor.5 = xor i1 %xor.4, %c.1 + + %c.2 = icmp ugt i8 %a, 98 + %xor.6 = xor i1 %xor.5, %c.1 + + ret i1 %xor.6 + +else: + %f.4 = icmp ult i8 %a, 100 + %f.5 = icmp ult i8 %b, 100 + %xor.7 = xor i1 %f.4, %f.5 + + %t.3 = icmp uge i8 %a, 100 + %xor.8 = xor i1 %xor.7, %t.3 + + %t.4 = icmp uge i8 %b, 100 + %xor.9 = xor i1 %xor.8, %t.4 + + %t.5 = icmp ugt i8 %a, 99 + %xor.10 = xor i1 %xor.9, %t.5 + + %c.3 = icmp ult i8 %a, 99 + %xor.11 = xor i1 %xor.10, %c.3 + + %c.4 = icmp ugt i8 %a, 98 + %xor.12 = xor i1 %xor.11, %c.4 + + ret i1 %xor.12 +} -- 2.7.4