| ; RUN: opt -loop-unswitch -enable-new-pm=0 %s -S | FileCheck %s |
| |
| ; When hoisting simple values out from a loop, and not being able to unswitch |
| ; the loop due to the invoke instruction, the pass would return an incorrect |
| ; Modified status. This was caught by the pass return status check that is |
| ; hidden under EXPENSIVE_CHECKS. |
| |
| ; CHECK-LABEL: for.cond: |
| ; CHECK-NEXT: %0 = call i32 @llvm.objectsize.i32.p0i8(i8* bitcast (%struct.anon* @b to i8*), i1 false, i1 false, i1 false) |
| ; CHECK-NEXT: %1 = icmp uge i32 %0, 1 |
| ; CHECK-NEXT: br label %for.inc |
| |
| %struct.anon = type { i16 } |
| |
| @b = global %struct.anon zeroinitializer, align 1 |
| |
| ; Function Attrs: nounwind |
| define i32 @c() #0 personality i32 (...)* @__CxxFrameHandler3 { |
| entry: |
| br label %for.cond |
| |
| for.cond: ; preds = %cont, %entry |
| br label %for.inc |
| |
| for.inc: ; preds = %for.cond |
| %0 = call i32 @llvm.objectsize.i32.p0i8(i8* bitcast (%struct.anon* @b to i8*), i1 false, i1 false, i1 false) |
| %1 = icmp uge i32 %0, 1 |
| br i1 %1, label %delete.notnull, label %delete.notnull |
| |
| delete.notnull: ; preds = %for.inc |
| invoke void @g() to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: ; preds = %delete.notnull |
| br label %for.inc |
| |
| lpad: ; preds = %delete.notnull |
| %cp = cleanuppad within none [] |
| cleanupret from %cp unwind to caller |
| |
| cont: ; preds = %for.inc |
| %2 = load i16, i16* getelementptr inbounds (%struct.anon, %struct.anon* @b, i32 0, i32 0), align 1 |
| br label %for.cond |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable willreturn |
| declare i32 @llvm.objectsize.i32.p0i8(i8*, i1 immarg, i1 immarg, i1 immarg) #1 |
| |
| declare void @g() |
| |
| declare i32 @__CxxFrameHandler3(...) |
| |
| attributes #0 = { nounwind } |
| attributes #1 = { nounwind readnone speculatable willreturn } |