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Just documentation.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7149 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vikram S. Adve 2003-07-10 19:31:26 +00:00
parent 6edfe27195
commit 6781cd2bf3
2 changed files with 46 additions and 0 deletions
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23
test/CodeGen/Generic/2003-07-08-BadCastToBool.ll
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@ -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

23
test/LLC/2003-07-08-BadCastToBool.ll
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@ -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