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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=sccp -S | FileCheck %s
declare void @use(i1)
define void @read_dmatrix() #0 {
; CHECK-LABEL: @read_dmatrix(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[HEIGHT:%.*]] = alloca i32, align 4
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[HEIGHT]], align 4
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 0, [[TMP0]]
; CHECK-NEXT: br i1 [[CMP]], label [[FOR_COND6:%.*]], label [[FOR_END16:%.*]]
; CHECK: for.cond6:
; CHECK-NEXT: br label [[FOR_COND]]
; CHECK: for.end16:
; CHECK-NEXT: ret void
;
entry:
%height = alloca i32, align 4
br label %for.cond
for.cond: ; preds = %for.cond6, %entry
%j.0 = phi i32 [ undef, %entry ], [ 0, %for.cond6 ]
%0 = load i32, ptr %height, align 4
%cmp = icmp slt i32 0, %0
br i1 %cmp, label %for.cond6, label %for.end16
for.cond6: ; preds = %for.cond
br label %for.cond
for.end16: ; preds = %for.cond
%sub21 = sub nsw i32 %j.0, 1
ret void
}
declare i1 @cond()
define void @emptyTT() #0 {
; CHECK-LABEL: @emptyTT(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[C:%.*]] = call i1 @cond()
; CHECK-NEXT: br i1 [[C]], label [[FOR_COND]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
br label %for.cond
for.cond: ; preds = %for.cond, %entry
%.compoundliteral.sroa.0.0 = phi i64 [ undef, %entry ], [ 0, %for.cond ]
%bf.clear = and i64 %.compoundliteral.sroa.0.0, -67108864
%c = call i1 @cond()
br i1 %c, label %for.cond, label %exit
exit:
ret void
}
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