; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=newgvn -S %s | FileCheck %s
define void @d() {
; CHECK-LABEL: @d(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: br label [[FOR_COND1:%.*]]
; CHECK: for.cond1:
; CHECK-NEXT: [[TMP0:%.*]] = phi i32 [ [[INC18:%.*]], [[FOR_INC17:%.*]] ], [ 0, [[FOR_COND]] ]
; CHECK-NEXT: [[CMP:%.*]] = icmp sle i32 [[TMP0]], 1
; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY:%.*]], label [[FOR_END19:%.*]]
; CHECK: for.body:
; CHECK-NEXT: br i1 undef, label [[FOR_BODY3:%.*]], label [[FOR_BODY_FOR_COND4_CRIT_EDGE:%.*]]
; CHECK: for.body.for.cond4_crit_edge:
; CHECK-NEXT: br label [[FOR_COND4:%.*]]
; CHECK: for.body3:
; CHECK-NEXT: br label [[CLEANUP14:%.*]]
; CHECK: for.cond4:
; CHECK-NEXT: br i1 undef, label [[IF_THEN:%.*]], label [[IF_END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: br label [[CLEANUP:%.*]]
; CHECK: if.end:
; CHECK-NEXT: br label [[FOR_COND6:%.*]]
; CHECK: for.cond6:
; CHECK-NEXT: [[TMP1:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_INC:%.*]] ], [ 0, [[IF_END]] ]
; CHECK-NEXT: [[CMP7:%.*]] = icmp sle i64 [[TMP1]], 1
; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_INC]], label [[FOR_END9:%.*]]
; CHECK: for.inc:
; CHECK-NEXT: [[INC]] = add nsw i64 [[TMP1]], 1
; CHECK-NEXT: br label [[FOR_COND6]]
; CHECK: for.end9:
; CHECK-NEXT: br i1 true, label [[IF_THEN11:%.*]], label [[IF_END12:%.*]]
; CHECK: if.then11:
; CHECK-NEXT: br label [[CLEANUP]]
; CHECK: if.end12:
; CHECK-NEXT: store i8 poison, ptr null, align 1
; CHECK-NEXT: br label [[CLEANUP]]
; CHECK: cleanup:
; CHECK-NEXT: [[CLEANUP_DEST:%.*]] = phi i32 [ poison, [[IF_END12]] ], [ 1, [[IF_THEN11]] ], [ 9, [[IF_THEN]] ]
; CHECK-NEXT: switch i32 [[CLEANUP_DEST]], label [[CLEANUP14]] [
; CHECK-NEXT: i32 0, label [[FOR_COND4]]
; CHECK-NEXT: i32 9, label [[FOR_END13:%.*]]
; CHECK-NEXT: ]
; CHECK: for.end13:
; CHECK-NEXT: br label [[CLEANUP14]]
; CHECK: cleanup14:
; CHECK-NEXT: [[CLEANUP_DEST15:%.*]] = phi i32 [ 0, [[FOR_END13]] ], [ [[CLEANUP_DEST]], [[CLEANUP]] ], [ 1, [[FOR_BODY3]] ]
; CHECK-NEXT: [[COND1:%.*]] = icmp eq i32 [[CLEANUP_DEST15]], 0
; CHECK-NEXT: br i1 [[COND1]], label [[FOR_INC17]], label [[CLEANUP20:%.*]]
; CHECK: for.inc17:
; CHECK-NEXT: [[INC18]] = add nsw i32 [[TMP0]], 1
; CHECK-NEXT: br label [[FOR_COND1]]
; CHECK: for.end19:
; CHECK-NEXT: br label [[CLEANUP20]]
; CHECK: cleanup20:
; CHECK-NEXT: [[PHIOFOPS:%.*]] = phi i1 [ true, [[FOR_END19]] ], [ [[COND1]], [[CLEANUP14]] ]
; CHECK-NEXT: [[CLEANUP_DEST21:%.*]] = phi i32 [ [[CLEANUP_DEST15]], [[CLEANUP14]] ], [ 0, [[FOR_END19]] ]
; CHECK-NEXT: br i1 [[PHIOFOPS]], label [[FOR_COND]], label [[CLEANUP23:%.*]]
; CHECK: cleanup23:
; CHECK-NEXT: ret void
;
entry:
br label %for.cond
for.cond: ; preds = %cleanup20, %entry
br label %for.cond1
for.cond1: ; preds = %for.inc17, %for.cond
%0 = phi i32 [ %inc18, %for.inc17 ], [ 0, %for.cond ]
%cmp = icmp sle i32 %0, 1
br i1 %cmp, label %for.body, label %for.end19
for.body: ; preds = %for.cond1
br i1 undef, label %for.body3, label %for.body.for.cond4_crit_edge
for.body.for.cond4_crit_edge: ; preds = %for.body
br label %for.cond4
for.body3: ; preds = %for.body
br label %cleanup14
for.cond4: ; preds = %cleanup, %for.body.for.cond4_crit_edge
br i1 undef, label %if.then, label %if.end
if.then: ; preds = %for.cond4
br label %cleanup
if.end: ; preds = %for.cond4
br label %for.cond6
for.cond6: ; preds = %for.inc, %if.end
%1 = phi i64 [ %inc, %for.inc ], [ 0, %if.end ]
%cmp7 = icmp sle i64 %1, 1
br i1 %cmp7, label %for.inc, label %for.end9
for.inc: ; preds = %for.cond6
%inc = add nsw i64 %1, 1
br label %for.cond6
for.end9: ; preds = %for.cond6
br i1 true, label %if.then11, label %if.end12
if.then11: ; preds = %for.end9
br label %cleanup
if.end12: ; preds = %for.end9
br label %cleanup
cleanup: ; preds = %if.end12, %if.then11, %if.then
%cleanup.dest = phi i32 [ undef, %if.end12 ], [ 1, %if.then11 ], [ 9, %if.then ]
switch i32 %cleanup.dest, label %cleanup14 [
i32 0, label %for.cond4
i32 9, label %for.end13
]
for.end13: ; preds = %cleanup
br label %cleanup14
cleanup14: ; preds = %for.end13, %cleanup, %for.body3
%cleanup.dest15 = phi i32 [ 0, %for.end13 ], [ %cleanup.dest, %cleanup ], [ 1, %for.body3 ]
%cond1 = icmp eq i32 %cleanup.dest15, 0
br i1 %cond1, label %for.inc17, label %cleanup20
for.inc17: ; preds = %cleanup14
%inc18 = add nsw i32 %0, 1
br label %for.cond1
for.end19: ; preds = %for.cond1
br label %cleanup20
cleanup20: ; preds = %for.end19, %cleanup14
%cleanup.dest21 = phi i32 [ %cleanup.dest15, %cleanup14 ], [ 0, %for.end19 ]
%cond = icmp eq i32 %cleanup.dest21, 0
br i1 %cond, label %for.cond, label %cleanup23
cleanup23: ; preds = %cleanup20
ret void
}
Codebase Browser
llvm