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Make the "switch-label not followed by statement" warning an error, depending on version.

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This commit is contained in:
John Kessenich 2015-06-26 12:24:28 -06:00
parent add1a4d88d
commit 0e7674afa0
4 changed files with 16 additions and 7 deletions
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3
Test/baseResults/spv.switch.frag.out
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@ -1,4 +1,5 @@
spv.switch.frag
Warning, version 310 is not yet complete; most version-specific features are present, but some are missing.
WARNING: 0:121: 'switch' : last case/default label not followed by statements
WARNING: 0:134: 'switch' : last case/default label not followed by statements
WARNING: 0:139: 'switch' : last case/default label not followed by statements
@ -11,7 +12,7 @@ Linked fragment stage:
// Generated by (magic number): 51a00bb
// Id's are bound by 261
Source ESSL 300
Source ESSL 310
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4

6
Test/baseResults/switch.frag.out
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@ -1,7 +1,7 @@
switch.frag
ERROR: 0:11: 'switch' : condition must be a scalar integer expression
ERROR: 0:14: 'switch' : condition must be a scalar integer expression
WARNING: 0:21: 'switch' : last case/default label not followed by statements
ERROR: 0:21: 'switch' : last case/default label not followed by statements
ERROR: 0:28: 'switch' : cannot have statements before first case/default label
ERROR: 0:43: 'default' : duplicate label
ERROR: 0:63: 'case' : duplicated value
@ -15,10 +15,10 @@ ERROR: 0:115: 'default' : cannot be nested inside control flow
ERROR: 0:119: 'case' : cannot appear outside switch statement
ERROR: 0:120: 'default' : cannot appear outside switch statement
ERROR: 0:126: 'onlyInSwitch' : undeclared identifier
WARNING: 0:128: 'switch' : last case/default label not followed by statements
ERROR: 0:128: 'switch' : last case/default label not followed by statements
ERROR: 0:140: 'nestedX' : undeclared identifier
ERROR: 0:157: 'nestedZ' : undeclared identifier
ERROR: 17 compilation errors. No code generated.
ERROR: 19 compilation errors. No code generated.
Shader version: 300

2
Test/spv.switch.frag
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@ -1,4 +1,4 @@
#version 300 es
#version 310 es
precision mediump float;
uniform int c, d;
in float x;

10
glslang/MachineIndependent/ParseHelper.cpp
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@ -5186,8 +5186,16 @@ TIntermNode* TParseContext::addSwitch(TSourceLoc loc, TIntermTyped* expression,
if (switchSequence->size() == 0)
return expression;
if (lastStatements == 0)
if (lastStatements == 0) {
// This was originally an ERRROR, because early versions of the specification said
// "it is an error to have no statement between a label and the end of the switch statement."
// The specifications were updated to remove this (being ill-defined what a "statement" was),
// so, this became a warning. However, 3.0 tests still check for the error.
if (profile == EEsProfile && version <= 300 && (messages & EShMsgRelaxedErrors) == 0)
error(loc, "last case/default label not followed by statements", "switch", "");
else
warn(loc, "last case/default label not followed by statements", "switch", "");
}
TIntermAggregate* body = new TIntermAggregate(EOpSequence);
body->getSequence() = *switchSequenceStack.back();