https://llvm.org/bugs/show_bug.cgi?id=27138
Bug ID: 27138
Summary: PowerPC code gen bug in 3.8. invalid elimination of
store
Product: new-bugs
Version: 3.8
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 16132
--> https://llvm.org/bugs/attachment.cgi?id=16132&action=edit
code that exposes a store elimination bug
The bugged .ll example shows a floating-point value of 4.0 being stored,
loaded, and multiplied by 0.2. The value 0.8 is then printed as output by LLVM
3.7. In LLVM 3.8, the output is 0.0. It appears that the store of 4.0 is
erroneously eliminated.
To expose the bug the following commands were used:
llc -O0 -o bug.s bug.ll
as bug.s -o bug.o
clang bug.o -O0 -o bug.out
./bug.out
0.000000
--
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
llvm-bugs mailing list
[email protected]
http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
