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llvm-mirror/test/Regression/Transforms/SimplifyCFG/branch-phi-thread.ll
2005-09-20 01:43:41 +00:00

64 lines
1.1 KiB
LLVM

; RUN: llvm-as < %s | opt -simplifycfg -adce | llvm-dis | not grep 'call void %f1' &&
; RUN: llvm-as < %s | opt -simplifycfg -adce -disable-output
declare void %f1()
declare void %f2()
declare void %f3()
declare void %f4()
implementation
int %test1(int %X, bool %D) {
E:
%C = seteq int %X, 0
br bool %C, label %T, label %F
T:
br bool %C, label %B, label %A
A:
call void %f1()
br bool %D, label %T, label %F
B:
call void %f2()
ret int 345
F:
call void %f3()
ret int 123
}
int %test2(int %X, bool %D) {
E:
%C = seteq int %X, 0
br bool %C, label %T, label %F
T:
%P = phi bool [true, %E], [%C, %A]
br bool %P, label %B, label %A
A:
call void %f1()
br bool %D, label %T, label %F
B:
call void %f2()
ret int 345
F:
call void %f3()
ret int 123
}
int %test3(int %X, bool %D, int* %AP, int* %BP) {
E:
%C = seteq int %X, 0
br bool %C, label %T, label %F
T:
call void %f3() ;; Inst in block.
%XX = load int* %AP
store int %XX, int* %BP
br bool %C, label %B, label %A
A:
call void %f1()
br bool %D, label %T, label %F
B:
call void %f2()
ret int 345
F:
call void %f3()
ret int 123
}