Changes in directory llvm/test/Regression/CodeGen/Generic:
2006-06-13-ComputeMaskedBitsCrash.ll added (r1.1)
---
Log message:
Tests to make sure that ComputeMaskedBits discards bits for shifts.
---
Diffs of the changes: (+50 -0)
2006-06-13-ComputeMaskedBitsCrash.ll | 50 +++++++++++++++++++++++++++++++++++
1 files changed, 50 insertions(+)
Index: llvm/test/Regression/CodeGen/Generic/2006-06-13-ComputeMaskedBitsCrash.ll
diff -c /dev/null
llvm/test/Regression/CodeGen/Generic/2006-06-13-ComputeMaskedBitsCrash.ll:1.1
*** /dev/null Tue Jun 13 08:10:54 2006
--- llvm/test/Regression/CodeGen/Generic/2006-06-13-ComputeMaskedBitsCrash.ll
Tue Jun 13 08:10:44 2006
***************
*** 0 ****
--- 1,50 ----
+ ; RUN: llvm-as < %s | llc -fast
+
+ uint %test1(uint %tmp1) {
+ %tmp2 = or uint %tmp1, 2147483648
+ %tmp3 = shr uint %tmp2, ubyte 31
+ %tmp4 = and uint %tmp3, 2147483648
+ %tmp5 = seteq uint %tmp4, 0
+ br bool %tmp5, label %cond_true, label %cond_false
+
+ cond_true:
+ ret uint %tmp1
+
+ cond_false:
+
+ ret uint %tmp2
+ }
+
+
+ uint %test2(uint %tmp1) {
+ %tmp2 = or uint %tmp1, 2147483648
+ %tmp3 = cast uint %tmp2 to int
+ %tmp4 = shr int %tmp3, ubyte 31
+ %tmp5 = cast int %tmp4 to uint
+ %tmp6 = and uint %tmp5, 2147483648
+ %tmp7 = seteq uint %tmp6, 0
+ br bool %tmp7, label %cond_true, label %cond_false
+
+ cond_true:
+ ret uint %tmp1
+
+ cond_false:
+
+ ret uint %tmp2
+ }
+
+
+ uint %test3(uint %tmp1) {
+ %tmp2 = or uint %tmp1, 1
+ %tmp3 = shl uint %tmp2, ubyte 31
+ %tmp4 = and uint %tmp3, 1
+ %tmp5 = seteq uint %tmp4, 0
+ br bool %tmp5, label %cond_true, label %cond_false
+
+ cond_true:
+ ret uint %tmp1
+
+ cond_false:
+
+ ret uint %tmp2
+ }
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