Changes in directory llvm/test/Regression/Transforms/InstCombine:
2006-10-19-SignedToUnsignedCastAndConst-2.ll added (r1.1)
---
Log message:
It is OK to remove extra cast if operation is EQ/NE even though source
and destination sign may not match but other conditions are met.
---
Diffs of the changes: (+9 -0)
2006-10-19-SignedToUnsignedCastAndConst-2.ll | 9 +++++++++
1 files changed, 9 insertions(+)
Index:
llvm/test/Regression/Transforms/InstCombine/2006-10-19-SignedToUnsignedCastAndConst-2.ll
diff -c /dev/null
llvm/test/Regression/Transforms/InstCombine/2006-10-19-SignedToUnsignedCastAndConst-2.ll:1.1
*** /dev/null Thu Oct 19 15:59:23 2006
---
llvm/test/Regression/Transforms/InstCombine/2006-10-19-SignedToUnsignedCastAndConst-2.ll
Thu Oct 19 15:59:13 2006
***************
*** 0 ****
--- 1,9 ----
+ ; The optimizer should be able to remove cast operation here.
+ ; RUN: llvm-as %s -o - | opt -instcombine | llvm-dis | not grep 'cast.*int'
+
+ bool %eq_signed_to_small_unsigned(sbyte %SB) {
+ %Y = cast sbyte %SB to uint ; <uint> [#uses=1]
+ %C = seteq uint %Y, 17 ; <bool> [#uses=1]
+ ret bool %C
+ }
+
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