Changes in directory llvm/test/Transforms/InstCombine:
2007-04-04-BadFoldBitcastIntoMalloc.ll added (r1.1)
---
Log message:
Add new test.
---
Diffs of the changes: (+19 -0)
2007-04-04-BadFoldBitcastIntoMalloc.ll | 19 +++++++++++++++++++
1 files changed, 19 insertions(+)
Index: llvm/test/Transforms/InstCombine/2007-04-04-BadFoldBitcastIntoMalloc.ll
diff -c /dev/null
llvm/test/Transforms/InstCombine/2007-04-04-BadFoldBitcastIntoMalloc.ll:1.1
*** /dev/null Wed Apr 4 11:11:33 2007
--- llvm/test/Transforms/InstCombine/2007-04-04-BadFoldBitcastIntoMalloc.ll
Wed Apr 4 11:11:23 2007
***************
*** 0 ****
--- 1,19 ----
+ ; In the presence of a negative offset (the -8 below), a fold of a bitcast
into
+ ; a malloc messes up the element count, causing an extra 4GB to be allocated
on
+ ; 64-bit targets.
+ ;
+ ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep -v '= add i32'
+
+ target datalayout =
"e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
+ target triple = "x86_64-unknown-freebsd6.2"
+
+ define i1 @test(i32 %tmp141, double** %tmp145)
+ {
+ %tmp133 = add i32 %tmp141, 1
+ %tmp134 = shl i32 %tmp133, 3
+ %tmp135 = add i32 %tmp134, -8
+ %tmp136 = malloc i8, i32 %tmp135
+ %tmp137 = bitcast i8* %tmp136 to double*
+ store double* %tmp137, double** %tmp145
+ ret i1 false
+ }
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