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Teach the verifier to reject all non-constant arguments to the second

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argument of the cttz and ctlz intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146360 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
2011-12-12 04:36:02 +00:00
parent ccbf1e36d3
commit c4eab904c9
2 changed files with 22 additions and 0 deletions
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16
test/Verifier/cttz-undef-arg.ll Normal file
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; RUN: not llvm-as < %s -o /dev/null |& FileCheck %s
declare i32 @llvm.ctlz.i32(i32, i1)
declare i32 @llvm.cttz.i32(i32, i1)
define void @f(i32 %x, i1 %is_not_zero) {
entry:
; CHECK: is_zero_undef argument of bit counting intrinsics must be a constant int
; CHECK-NEXT: @llvm.ctlz.i32
call i32 @llvm.ctlz.i32(i32 %x, i1 %is_not_zero)
; CHECK: is_zero_undef argument of bit counting intrinsics must be a constant int
; CHECK-NEXT: @llvm.cttz.i32
call i32 @llvm.cttz.i32(i32 %x, i1 %is_not_zero)
ret void
}