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new testcase

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llvm-svn: 30157
This commit is contained in:
Chris Lattner 2006-09-07 21:29:32 +00:00
parent 9c7673ffca
commit 4d22e7fac4
1 changed files with 57 additions and 0 deletions
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57
test/Regression/Transforms/TailDup/if-tail-dup.ll Normal file
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; RUN: llvm-as < %s | opt -tailduplicate | llc -march=x86 | grep 'je ' &&
; RUN: llvm-as < %s | opt -tailduplicate | llc -march=x86 | not grep jmp
; This should have no unconditional jumps in it. The C source is:
;void foo(int c, int* P) {
; if (c & 1) P[0] = 1;
; if (c & 2) P[1] = 1;
; if (c & 4) P[2] = 1;
; if (c & 8) P[3] = 1;
;}
void %foo(int %c, int* %P) {
entry:
%tmp1 = and int %c, 1 ; <int> [#uses=1]
%tmp1 = seteq int %tmp1, 0 ; <bool> [#uses=1]
br bool %tmp1, label %cond_next, label %cond_true
cond_true: ; preds = %entry
store int 1, int* %P
br label %cond_next
cond_next: ; preds = %entry, %cond_true
%tmp5 = and int %c, 2 ; <int> [#uses=1]
%tmp5 = seteq int %tmp5, 0 ; <bool> [#uses=1]
br bool %tmp5, label %cond_next10, label %cond_true6
cond_true6: ; preds = %cond_next
%tmp8 = getelementptr int* %P, int 1 ; <int*> [#uses=1]
store int 1, int* %tmp8
br label %cond_next10
cond_next10: ; preds = %cond_next, %cond_true6
%tmp13 = and int %c, 4 ; <int> [#uses=1]
%tmp13 = seteq int %tmp13, 0 ; <bool> [#uses=1]
br bool %tmp13, label %cond_next18, label %cond_true14
cond_true14: ; preds = %cond_next10
%tmp16 = getelementptr int* %P, int 2 ; <int*> [#uses=1]
store int 1, int* %tmp16
br label %cond_next18
cond_next18: ; preds = %cond_next10, %cond_true14
%tmp21 = and int %c, 8 ; <int> [#uses=1]
%tmp21 = seteq int %tmp21, 0 ; <bool> [#uses=1]
br bool %tmp21, label %return, label %cond_true22
cond_true22: ; preds = %cond_next18
%tmp24 = getelementptr int* %P, int 3 ; <int*> [#uses=1]
store int 1, int* %tmp24
ret void
return: ; preds = %cond_next18
ret void
}