llvm-6502/test/Assembler/ConstantExprFoldCast.ll
Duncan P. N. Exon Smith 94f7c7aeaa verify-uselistorder: Change the default -num-shuffles=5
Change the default for `-num-shuffles` to 5 and better document the
algorithm in the header docs of `verify-uselistorder`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214419 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-31 18:46:24 +00:00

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LLVM

; This test checks to make sure that constant exprs fold in some simple situations
; RUN: llvm-as < %s | llvm-dis | not grep cast
; RUN: verify-uselistorder %s -preserve-bc-use-list-order
@A = global i32* bitcast (i8* null to i32*) ; Cast null -> fold
@B = global i32** bitcast (i32** @A to i32**) ; Cast to same type -> fold
@C = global i32 trunc (i64 42 to i32) ; Integral casts
@D = global i32* bitcast(float* bitcast (i32* @C to float*) to i32*) ; cast of cast ptr->ptr
@E = global i32 ptrtoint(float* inttoptr (i8 5 to float*) to i32) ; i32 -> ptr -> i32
; Test folding of binary instrs
@F = global i32* inttoptr (i32 add (i32 5, i32 -5) to i32*)
@G = global i32* inttoptr (i32 sub (i32 5, i32 5) to i32*)
; Address space cast AS0 null-> AS1 null
@H = global i32 addrspace(1)* addrspacecast(i32* null to i32 addrspace(1)*)