Changes in directory llvm/test/Regression/CodeGen/X86:
2006-01-19-ISelFoldingBug.ll added (r1.1)
---
Log message:
Added a load folding bug test case.
---
Diffs of the changes: (+15 -0)
2006-01-19-ISelFoldingBug.ll | 15 +++++++++++++++
1 files changed, 15 insertions(+)
Index: llvm/test/Regression/CodeGen/X86/2006-01-19-ISelFoldingBug.ll
diff -c /dev/null
llvm/test/Regression/CodeGen/X86/2006-01-19-ISelFoldingBug.ll:1.1
*** /dev/null Thu Jan 19 19:12:33 2006
--- llvm/test/Regression/CodeGen/X86/2006-01-19-ISelFoldingBug.ll Thu Jan
19 19:12:23 2006
***************
*** 0 ****
--- 1,15 ----
+ ; RUN: llvm-as < %s | llc -march=x86 | grep 'shld' | wc -l | grep 1
+ ;
+ ; Check that the isel does not fold the shld, which already folds a load
+ ; and has two uses, into a store.
+ %A = external global uint
+
+ uint %test5(uint %B, ubyte %C) {
+ %tmp.1 = load uint *%A;
+ %tmp.2 = shl uint %tmp.1, ubyte %C
+ %tmp.3 = sub ubyte 32, %C
+ %tmp.4 = shr uint %B, ubyte %tmp.3
+ %tmp.5 = or uint %tmp.4, %tmp.2
+ store uint %tmp.5, uint* %A
+ ret uint %tmp.5
+ }
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