diff options
Diffstat (limited to 'test/CodeGen/Generic/2003-07-08-BadCastToBool.ll')
| -rw-r--r-- | test/CodeGen/Generic/2003-07-08-BadCastToBool.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/Generic/2003-07-08-BadCastToBool.ll b/test/CodeGen/Generic/2003-07-08-BadCastToBool.ll index 56e02d05b3..5736c951b7 100644 --- a/test/CodeGen/Generic/2003-07-08-BadCastToBool.ll +++ b/test/CodeGen/Generic/2003-07-08-BadCastToBool.ll @@ -1,3 +1,26 @@ +;; Date: Jul 8, 2003. +;; From: test/Programs/MultiSource/Olden-perimeter +;; Function: int %adj(uint %d.1, uint %ct.1) +;; +;; Errors: (1) cast-int-to-bool was being treated as a NOP (i.e., the int +;; register was treated as effectively true if non-zero). +;; This cannot be used for later boolean operations. +;; (2) (A or NOT(B)) was being folded into A orn B, which is ok +;; for bitwise operations but not booleans! For booleans, +;; the result has to be compared with 0. +;; +;; LLC Output for the basic block (LLVM assembly is shown below): +;; +;; .L_adj_7_LL_4: +;; sethi 0, %i0 +;; subcc %i1, 2, %g0 +;; move %icc, 1, %i0 +;; orn %i0, %i1, %i0 +;; ba .L_adj_7_LL_5 +;; nop +;; + + target endian = big target pointersize = 64 |