| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s |
| |
| declare void @zzz() |
| |
| define i32 @lex(i1 %c0, i1 %c1, i32 %r0, i32 %r1, i32 %v) { |
| ; CHECK-LABEL: @lex( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[C0_NOT:%.*]] = xor i1 [[C0:%.*]], true |
| ; CHECK-NEXT: [[C1_NOT:%.*]] = xor i1 [[C1:%.*]], true |
| ; CHECK-NEXT: [[BRMERGE:%.*]] = or i1 [[C0_NOT]], [[C1_NOT]] |
| ; CHECK-NEXT: [[R0_MUX:%.*]] = select i1 [[C0_NOT]], i32 [[R0:%.*]], i32 [[R1:%.*]] |
| ; CHECK-NEXT: br i1 [[BRMERGE]], label [[IF_THEN:%.*]], label [[DO_BODY:%.*]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: [[MERGE:%.*]] = phi i32 [ [[R0_MUX]], [[ENTRY:%.*]] ], [ [[R1]], [[DO_BODY]] ] |
| ; CHECK-NEXT: ret i32 [[MERGE]] |
| ; CHECK: do.body: |
| ; CHECK-NEXT: call void @zzz() |
| ; CHECK-NEXT: switch i32 [[V:%.*]], label [[IF_THEN]] [ |
| ; CHECK-NEXT: i32 10, label [[DO_BODY]] |
| ; CHECK-NEXT: i32 32, label [[DO_BODY]] |
| ; CHECK-NEXT: i32 9, label [[DO_BODY]] |
| ; CHECK-NEXT: ] |
| ; |
| entry: |
| br i1 %c0, label %if.end, label %if.then |
| |
| if.then: ; preds = %entry |
| ret i32 %r0 |
| |
| if.end: ; preds = %entry |
| br i1 %c1, label %do.body, label %do.end |
| |
| do.body: ; preds = %if.then193, %if.then193, %if.then193, %do.body, %do.body, %if.end |
| call void @zzz() |
| switch i32 %v, label %do.end [ |
| i32 10, label %if.then193 |
| i32 32, label %do.body |
| i32 9, label %do.body |
| ] |
| |
| if.then193: ; preds = %do.body |
| switch i32 %v, label %do.end [ |
| i32 32, label %do.body |
| i32 10, label %do.body |
| i32 9, label %do.body |
| ] |
| |
| do.end: ; preds = %if.then193, %do.body, %if.end |
| ret i32 %r1 |
| } |
