; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes='require,loop(loop-simplifycfg),gvn' -S %s | FileCheck %s define i32 @test_pointer_phi_select_simp_1(ptr %a, ptr %b, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_1( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[TMP0:%.*]] = select i1 [[CMP_I_I_I]], i32 [[L_1]], i32 [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: [[RES_2_PRE:%.*]] = load i32, ptr [[A]], align 4 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RES_2:%.*]] = phi i32 [ [[TMP0]], [[THEN]] ], [ [[RES_2_PRE]], [[ELSE]] ] ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_non_local(ptr %a, ptr %b, ptr %c) { ; CHECK-LABEL: @test_pointer_phi_select_simp_non_local( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[COND:%.*]] = icmp sgt i32 [[L_1]], 0 ; CHECK-NEXT: br i1 [[COND]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[TMP0:%.*]] = select i1 [[CMP_I_I_I]], i32 [[L_1]], i32 [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: [[RES_2_PRE:%.*]] = load i32, ptr [[C:%.*]], align 4 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RES_2:%.*]] = phi i32 [ [[TMP0]], [[THEN]] ], [ [[RES_2_PRE]], [[ELSE]] ] ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[C]], [[ELSE]] ] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: %l.1 = load i32, ptr %a, align 4 %cond = icmp sgt i32 %l.1, 0 br i1 %cond, label %then, label %else then: %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %c, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_non_local_mismatched_type(ptr %a, ptr %b, ptr %c) { ; CHECK-LABEL: @test_pointer_phi_select_simp_non_local_mismatched_type( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[L_1:%.*]] = load float, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[CONV:%.*]] = fptosi float [[L_1]] to i32 ; CHECK-NEXT: [[COND:%.*]] = icmp sgt i32 [[CONV]], 0 ; CHECK-NEXT: br i1 [[COND]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[CONV]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[C:%.*]], [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: %l.1 = load float, ptr %a, align 4 %conv = fptosi float %l.1 to i32 %cond = icmp sgt i32 %conv, 0 br i1 %cond, label %then, label %else then: %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %conv, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %c, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_no_load_for_select_op_1(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_no_load_for_select_op_1( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A:%.*]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %c, align 4 %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_no_load_for_select_op_2(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_no_load_for_select_op_2( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B:%.*]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %c, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_noclobber(ptr %a, ptr %b, ptr noalias %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_noclobber( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[TMP0:%.*]] = select i1 [[CMP_I_I_I]], i32 [[L_1]], i32 [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: [[RES_2_PRE:%.*]] = load i32, ptr [[A]], align 4 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RES_2:%.*]] = phi i32 [ [[TMP0]], [[THEN]] ], [ [[RES_2_PRE]], [[ELSE]] ] ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 store i32 99, ptr %c %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_1(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_1( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 store i32 99, ptr %c %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_2(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_2( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 store i32 99, ptr %c %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_3(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_3( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[TMP0:%.*]] = select i1 [[CMP_I_I_I]], i32 [[L_1]], i32 [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: [[RES_2_PRE:%.*]] = load i32, ptr [[A]], align 4 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RES_2:%.*]] = phi i32 [ [[TMP0]], [[THEN]] ], [ [[RES_2_PRE]], [[ELSE]] ] ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: store i32 99, ptr %c %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_4(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_4( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b store i32 99, ptr %c br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_5(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_5( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] store i32 99, ptr %c %res.2 = load i32, ptr %p, align 4 ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_6(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_6( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: [[RES_0:%.*]] = load i32, ptr [[MIN_SELECT]], align 4 ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: [[RES_2_PRE:%.*]] = load i32, ptr [[A]], align 4 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RES_2:%.*]] = phi i32 [ [[RES_0]], [[THEN]] ], [ [[RES_2_PRE]], [[ELSE]] ] ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[V:%.*]] = phi i32 [ [[RES_0]], [[THEN]] ], [ 10, [[ELSE]] ] ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[RES_2]], [[V]] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 store i32 99, ptr %c %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %min.select, align 4 br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %v = phi i32 [ %res.0, %then ], [ 10, %else ] %res.2 = load i32, ptr %p, align 4 %add = add i32 %res.2, %v ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_7(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_7( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: [[RES_0:%.*]] = load i32, ptr [[A]], align 4 ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[V:%.*]] = phi i32 [ [[RES_0]], [[THEN]] ], [ 10, [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[RES_2]], [[V]] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 store i32 99, ptr %c %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %a, align 4 br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %v = phi i32 [ %res.0, %then ], [ 10, %else ] %res.2 = load i32, ptr %p, align 4 %add = add i32 %res.2, %v ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_8(ptr %a, ptr %b, ptr %c, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_8( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: [[RES_0:%.*]] = load i32, ptr [[B]], align 4 ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[V:%.*]] = phi i32 [ [[RES_0]], [[THEN]] ], [ 10, [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[RES_2]], [[V]] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 store i32 99, ptr %c %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %b, align 4 br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %v = phi i32 [ %res.0, %then ], [ 10, %else ] %res.2 = load i32, ptr %p, align 4 %add = add i32 %res.2, %v ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_9(ptr %a, ptr %b, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_9( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[A]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: [[RES_0:%.*]] = load i32, ptr [[B]], align 4 ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[V:%.*]] = phi i32 [ [[RES_0]], [[THEN]] ], [ 10, [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[RES_2]], [[V]] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 store i32 99, ptr %a %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %b, align 4 br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %v = phi i32 [ %res.0, %then ], [ 10, %else ] %res.2 = load i32, ptr %p, align 4 %add = add i32 %res.2, %v ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_10(ptr %a, ptr %b, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_10( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[A]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[V:%.*]] = phi i32 [ [[L_2]], [[THEN]] ], [ 10, [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[RES_2]], [[V]] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 store i32 99, ptr %a %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %b, align 4 br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %v = phi i32 [ %res.0, %then ], [ 10, %else ] %res.2 = load i32, ptr %p, align 4 %add = add i32 %res.2, %v ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_11(ptr %a, ptr %b, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_11( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[B]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[V:%.*]] = phi i32 [ 99, [[THEN]] ], [ 10, [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[RES_2]], [[V]] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 store i32 99, ptr %b %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %b, align 4 br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %v = phi i32 [ %res.0, %then ], [ 10, %else ] %res.2 = load i32, ptr %p, align 4 %add = add i32 %res.2, %v ret i32 %res.2 } define i32 @test_pointer_phi_select_simp_store_clobber_12(ptr %a, ptr %b, i1 %cond) { ; CHECK-LABEL: @test_pointer_phi_select_simp_store_clobber_12( ; CHECK-NEXT: entry: ; CHECK-NEXT: br i1 [[COND:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]] ; CHECK: then: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], 99 ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: else: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[MIN_SELECT]], [[THEN]] ], [ [[A]], [[ELSE]] ] ; CHECK-NEXT: [[V:%.*]] = phi i32 [ 99, [[THEN]] ], [ 10, [[ELSE]] ] ; CHECK-NEXT: [[RES_2:%.*]] = load i32, ptr [[P]], align 4 ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[RES_2]], [[V]] ; CHECK-NEXT: ret i32 [[RES_2]] ; entry: br i1 %cond, label %then, label %else then: %l.1 = load i32, ptr %a, align 4 store i32 99, ptr %b %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %b, align 4 br label %exit else: br label %exit exit: %p = phi ptr [ %min.select, %then ], [ %a, %else ] %v = phi i32 [ %res.0, %then ], [ 10, %else ] %res.2 = load i32, ptr %p, align 4 %add = add i32 %res.2, %v ret i32 %res.2 } define i32 @test_pointer_phi_select_single_block_store(ptr %a, ptr %b) { ; CHECK-LABEL: @test_pointer_phi_select_single_block_store( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[TMP0:%.*]] = select i1 [[CMP_I_I_I]], i32 [[L_1]], i32 [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: ret i32 [[TMP0]] ; entry: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %min.select, align 4 ret i32 %res.0 } define i32 @test_pointer_phi_select_single_block_store_clobber_1(ptr %a, ptr %b, ptr %c) { ; CHECK-LABEL: @test_pointer_phi_select_single_block_store_clobber_1( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: [[RES_0:%.*]] = load i32, ptr [[MIN_SELECT]], align 4 ; CHECK-NEXT: ret i32 [[RES_0]] ; entry: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 store i32 99, ptr %c %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %min.select, align 4 ret i32 %res.0 } define i32 @test_pointer_phi_select_single_block_store_clobber_2(ptr %a, ptr %b, ptr %c) { ; CHECK-LABEL: @test_pointer_phi_select_single_block_store_clobber_2( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[RES_0:%.*]] = load i32, ptr [[MIN_SELECT]], align 4 ; CHECK-NEXT: ret i32 [[RES_0]] ; entry: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b store i32 99, ptr %c %res.0 = load i32, ptr %min.select, align 4 ret i32 %res.0 } define i32 @test_pointer_phi_select_single_block_store_clobber_3(ptr %a, ptr %b, ptr %c) { ; CHECK-LABEL: @test_pointer_phi_select_single_block_store_clobber_3( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: [[RES_0:%.*]] = load i32, ptr [[MIN_SELECT]], align 4 ; CHECK-NEXT: ret i32 [[RES_0]] ; entry: %l.1 = load i32, ptr %a, align 4 store i32 99, ptr %c %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %min.select, align 4 ret i32 %res.0 } define i32 @test_pointer_phi_select_single_block_store_after(ptr %a, ptr %b, ptr %c) { ; CHECK-LABEL: @test_pointer_phi_select_single_block_store_after( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[L_1:%.*]] = load i32, ptr [[A:%.*]], align 4 ; CHECK-NEXT: [[L_2:%.*]] = load i32, ptr [[B:%.*]], align 4 ; CHECK-NEXT: [[CMP_I_I_I:%.*]] = icmp ult i32 [[L_1]], [[L_2]] ; CHECK-NEXT: [[TMP0:%.*]] = select i1 [[CMP_I_I_I]], i32 [[L_1]], i32 [[L_2]] ; CHECK-NEXT: [[MIN_SELECT:%.*]] = select i1 [[CMP_I_I_I]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: store i32 99, ptr [[C:%.*]], align 4 ; CHECK-NEXT: ret i32 [[TMP0]] ; entry: %l.1 = load i32, ptr %a, align 4 %l.2 = load i32, ptr %b, align 4 %cmp.i.i.i = icmp ult i32 %l.1, %l.2 %min.select = select i1 %cmp.i.i.i, ptr %a, ptr %b %res.0 = load i32, ptr %min.select, align 4 store i32 99, ptr %c ret i32 %res.0 } define i32 @test_phi_select_index_non_local(ptr %A, i32 %N, i32 %i) { ; CHECK-LABEL: @test_phi_select_index_non_local( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[I:%.*]], [[N:%.*]] ; CHECK-NEXT: br i1 [[CMP]], label [[LAND_LHS_TRUE:%.*]], label [[IF_END:%.*]] ; CHECK: land.lhs.true: ; CHECK-NEXT: [[IDXPROM:%.*]] = sext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 ; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[I]], 1 ; CHECK-NEXT: [[IDXPROM1:%.*]] = sext i32 [[ADD]] to i64 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IDXPROM1]] ; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 ; CHECK-NEXT: [[CMP3:%.*]] = icmp slt i32 [[TMP0]], [[TMP1]] ; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[CMP3]], i32 [[ADD]], i32 [[I]] ; CHECK-NEXT: br label [[IF_END]] ; CHECK: if.end: ; CHECK-NEXT: [[I_ADDR_0:%.*]] = phi i32 [ [[I]], [[ENTRY:%.*]] ], [ [[SPEC_SELECT]], [[LAND_LHS_TRUE]] ] ; CHECK-NEXT: [[IDXPROM5:%.*]] = sext i32 [[I_ADDR_0]] to i64 ; CHECK-NEXT: [[ARRAYIDX6:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IDXPROM5]] ; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[ARRAYIDX6]], align 4 ; CHECK-NEXT: ret i32 [[TMP2]] ; entry: %cmp = icmp slt i32 %i, %N br i1 %cmp, label %land.lhs.true, label %if.end land.lhs.true: %idxprom = sext i32 %i to i64 %arrayidx = getelementptr inbounds i32, ptr %A, i64 %idxprom %0 = load i32, ptr %arrayidx, align 4 %add = add nsw i32 %i, 1 %idxprom1 = sext i32 %add to i64 %arrayidx2 = getelementptr inbounds i32, ptr %A, i64 %idxprom1 %1 = load i32, ptr %arrayidx2, align 4 %cmp3 = icmp slt i32 %0, %1 %spec.select = select i1 %cmp3, i32 %add, i32 %i br label %if.end if.end: %i.addr.0 = phi i32 [ %i, %entry ], [ %spec.select, %land.lhs.true ] %idxprom5 = sext i32 %i.addr.0 to i64 %arrayidx6 = getelementptr inbounds i32, ptr %A, i64 %idxprom5 %2 = load i32, ptr %arrayidx6, align 4 ret i32 %2 } define i32 @test_phi_select_index_loop(ptr %A, i32 %N) { ; CHECK-LABEL: @test_phi_select_index_loop( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[N:%.*]], 1 ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]] ; CHECK: for.body.preheader: ; CHECK-NEXT: br label [[FOR_BODY:%.*]] ; CHECK: for.body: ; CHECK-NEXT: [[IDX:%.*]] = phi i32 [ [[IDX_NEXT:%.*]], [[FOR_BODY]] ], [ 1, [[FOR_BODY_PREHEADER]] ] ; CHECK-NEXT: [[RES:%.*]] = phi i32 [ [[SPEC_SELECT:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ] ; CHECK-NEXT: [[IDXPROM:%.*]] = sext i32 [[IDX]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 ; CHECK-NEXT: [[IDXPROM1:%.*]] = sext i32 [[RES]] to i64 ; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IDXPROM1]] ; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[ARRAYIDX1]], align 4 ; CHECK-NEXT: [[CMP1:%.*]] = icmp slt i32 [[TMP0]], [[TMP1]] ; CHECK-NEXT: [[SPEC_SELECT]] = select i1 [[CMP1]], i32 [[IDX]], i32 [[RES]] ; CHECK-NEXT: [[IDX_NEXT]] = add nsw i32 [[IDX]], 1 ; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[IDX_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]], label [[FOR_BODY]] ; CHECK: for.cond.cleanup.loopexit: ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] ; CHECK: for.cond.cleanup: ; CHECK-NEXT: [[RES_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[SPEC_SELECT]], [[FOR_COND_CLEANUP_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RES_0_LCSSA]] ; entry: %cmp = icmp sgt i32 %N, 1 br i1 %cmp, label %for.body, label %for.cond.cleanup for.body: %idx = phi i32 [ 1, %entry ], [ %idx.next, %for.body ] %res = phi i32 [ 0, %entry ], [ %spec.select, %for.body ] %idxprom = sext i32 %idx to i64 %arrayidx = getelementptr inbounds i32, ptr %A, i64 %idxprom %0 = load i32, ptr %arrayidx, align 4 %idxprom1 = sext i32 %res to i64 %arrayidx1 = getelementptr inbounds i32, ptr %A, i64 %idxprom1 %1 = load i32, ptr %arrayidx1, align 4 %cmp1 = icmp slt i32 %0, %1 %spec.select = select i1 %cmp1, i32 %idx, i32 %res %idx.next = add nsw i32 %idx, 1 %exitcond.not = icmp eq i32 %idx.next, %N br i1 %exitcond.not, label %for.cond.cleanup, label %for.body for.cond.cleanup: %res.0.lcssa = phi i32 [ 0, %entry ], [ %spec.select, %for.body ] ret i32 %res.0.lcssa }