[llvm-commits] CVS: llvm/test/Regression/Transforms/SimplifyLibCalls/memcmp.ll
Chris Lattner
lattner at cs.uiuc.edu
Wed Sep 28 23:11:46 PDT 2005
Changes in directory llvm/test/Regression/Transforms/SimplifyLibCalls:
memcmp.ll added (r1.1)
---
Log message:
add a new testcase
---
Diffs of the changes: (+23 -0)
memcmp.ll | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+)
Index: llvm/test/Regression/Transforms/SimplifyLibCalls/memcmp.ll
diff -c /dev/null llvm/test/Regression/Transforms/SimplifyLibCalls/memcmp.ll:1.1
*** /dev/null Thu Sep 29 01:11:44 2005
--- llvm/test/Regression/Transforms/SimplifyLibCalls/memcmp.ll Thu Sep 29 01:11:34 2005
***************
*** 0 ****
--- 1,23 ----
+ ; Test that the memcmpOptimizer works correctly
+ ; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | not grep 'call.*memcmp' &&
+ ; RUN: llvm-as < %s | opt -simplify-libcalls -disable-output
+
+ declare int %memcmp(sbyte*,sbyte*,int)
+ %h = constant [2 x sbyte] c"h\00"
+ %hel = constant [4 x sbyte] c"hel\00"
+ %hello_u = constant [8 x sbyte] c"hello_u\00"
+
+ implementation
+
+ void %test(sbyte *%P, sbyte *%Q, int %N, int* %IP, bool *%BP) {
+ %A = call int %memcmp(sbyte *%P, sbyte* %P, int %N)
+ volatile store int %A, int* %IP
+ %B = call int %memcmp(sbyte *%P, sbyte* %Q, int 0)
+ volatile store int %B, int* %IP
+ %C = call int %memcmp(sbyte *%P, sbyte* %Q, int 1)
+ volatile store int %C, int* %IP
+ %D = call int %memcmp(sbyte *%P, sbyte* %Q, int 2)
+ %E = seteq int %D, 0
+ volatile store bool %E, bool* %BP
+ ret void
+ }
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