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Linker: Eliminate uncalled functions, because they can be ill-defined.

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Fixes issue #610. Also provides a testing option to keep uncalled functions.
This commit is contained in:
John Kessenich 2016-12-09 19:22:20 -07:00
parent bf6d7f43fd
commit 906cc21816
68 changed files with 101 additions and 7783 deletions
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122
Test/baseResults/dce.frag.out
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@ -147,128 +147,6 @@ Shader version: 400
0:5 'c' (global int)
0:5 Constant:
0:5 0 (const int)
0:7 Function Definition: bar( (global void)
0:7 Function Parameters:
0:9 Sequence
0:9 Test condition and select (temp void)
0:9 Condition
0:9 Constant:
0:9 false (const bool)
0:9 true case
0:10 Pre-Increment (temp int)
0:10 'c' (global int)
0:9 false case
0:12 Pre-Increment (temp int)
0:12 'c' (global int)
0:14 Test condition and select (temp int)
0:14 Condition
0:14 Constant:
0:14 false (const bool)
0:14 true case
0:14 Pre-Increment (temp int)
0:14 'c' (global int)
0:14 false case
0:14 Pre-Increment (temp int)
0:14 'c' (global int)
0:16 switch
0:16 condition
0:16 'c' (global int)
0:16 body
0:16 Sequence
0:17 case: with expression
0:17 Constant:
0:17 1 (const int)
0:? Sequence
0:18 Pre-Increment (temp int)
0:18 'c' (global int)
0:19 Branch: Break
0:20 Pre-Increment (temp int)
0:20 'c' (global int)
0:21 case: with expression
0:21 Constant:
0:21 2 (const int)
0:? Sequence
0:22 Branch: Break
0:23 Pre-Increment (temp int)
0:23 'c' (global int)
0:24 default:
0:? Sequence
0:25 Branch: Break
0:28 Sequence
0:28 Sequence
0:28 move second child to first child (temp int)
0:28 'i' (temp int)
0:28 Constant:
0:28 0 (const int)
0:28 Loop with condition tested first
0:28 Loop Condition
0:28 Compare Less Than (temp bool)
0:28 'i' (temp int)
0:28 Constant:
0:28 0 (const int)
0:28 Loop Body
0:29 Pre-Increment (temp int)
0:29 'c' (global int)
0:28 Loop Terminal Expression
0:28 Pre-Increment (temp int)
0:28 'i' (temp int)
0:31 Sequence
0:31 Sequence
0:31 move second child to first child (temp int)
0:31 'i' (temp int)
0:31 Constant:
0:31 0 (const int)
0:31 Loop with condition tested first
0:31 Loop Condition
0:31 Compare Less Than (temp bool)
0:31 'i' (temp int)
0:31 Constant:
0:31 10 (const int)
0:31 Loop Body
0:32 Sequence
0:32 Test condition and select (temp void)
0:32 Condition
0:32 Compare Less Than (temp bool)
0:32 'c' (global int)
0:32 Constant:
0:32 3 (const int)
0:32 true case
0:33 Sequence
0:33 Branch: Break
0:34 Pre-Increment (temp int)
0:34 'c' (global int)
0:32 false case
0:36 Sequence
0:36 Branch: Continue
0:37 Pre-Increment (temp int)
0:37 'c' (global int)
0:31 Loop Terminal Expression
0:31 Pre-Increment (temp int)
0:31 'i' (temp int)
0:41 Branch: Return
0:43 Pre-Increment (temp int)
0:43 'c' (global int)
0:46 Function Definition: foo( (global int)
0:46 Function Parameters:
0:48 Sequence
0:48 Test condition and select (temp void)
0:48 Condition
0:48 Compare Greater Than (temp bool)
0:48 'c' (global int)
0:48 Constant:
0:48 4 (const int)
0:48 true case
0:49 Sequence
0:49 Branch: Return with expression
0:49 Constant:
0:49 4 (const int)
0:50 Pre-Increment (temp int)
0:50 'c' (global int)
0:53 Branch: Return with expression
0:53 Constant:
0:53 5 (const int)
0:55 Pre-Increment (temp int)
0:55 'c' (global int)
0:? Linker Objects
0:? 'flag' (const bool)
0:? false (const bool)