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<p style="margin-top:0;margin-bottom:0">Hi Hans,</p>
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<p style="margin-top:0;margin-bottom:0">Can this be merged into the release 9.0 branch please?<br>
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Thank you!</div>
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Anastasia<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> cfe-commits <cfe-commits-bounces@lists.llvm.org> on behalf of Sven van Haastregt via cfe-commits <cfe-commits@lists.llvm.org><br>
<b>Sent:</b> 12 August 2019 13:44<br>
<b>To:</b> cfe-commits@lists.llvm.org <cfe-commits@lists.llvm.org><br>
<b>Subject:</b> r368561 - [OpenCL] Ignore parentheses for sampler initialization</font>
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<div class="PlainText">Author: svenvh<br>
Date: Mon Aug 12 05:44:26 2019<br>
New Revision: 368561<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=368561&view=rev">http://llvm.org/viewvc/llvm-project?rev=368561&view=rev</a><br>
Log:<br>
[OpenCL] Ignore parentheses for sampler initialization<br>
<br>
The sampler handling logic in SemaInit.cpp would inadvertently treat<br>
parentheses around sampler arguments as an implicit cast, leading to<br>
an unreachable "can't implicitly cast lvalue to rvalue with<br>
this cast kind". Fix by ignoring parentheses once we are in the<br>
sampler initializer case.<br>
<br>
Differential Revision: <a href="https://reviews.llvm.org/D66080">https://reviews.llvm.org/D66080</a><br>
<br>
Modified:<br>
cfe/trunk/lib/Sema/SemaInit.cpp<br>
cfe/trunk/test/SemaOpenCL/sampler_t.cl<br>
<br>
Modified: cfe/trunk/lib/Sema/SemaInit.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaInit.cpp?rev=368561&r1=368560&r2=368561&view=diff">
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaInit.cpp?rev=368561&r1=368560&r2=368561&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/Sema/SemaInit.cpp (original)<br>
+++ cfe/trunk/lib/Sema/SemaInit.cpp Mon Aug 12 05:44:26 2019<br>
@@ -8248,7 +8248,7 @@ ExprResult InitializationSequence::Perfo<br>
// argument passing.<br>
assert(Step->Type->isSamplerT() &&<br>
"Sampler initialization on non-sampler type.");<br>
- Expr *Init = CurInit.get();<br>
+ Expr *Init = CurInit.get()->IgnoreParens();<br>
QualType SourceType = Init->getType();<br>
// Case 1<br>
if (Entity.isParameterKind()) {<br>
<br>
Modified: cfe/trunk/test/SemaOpenCL/sampler_t.cl<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaOpenCL/sampler_t.cl?rev=368561&r1=368560&r2=368561&view=diff">
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaOpenCL/sampler_t.cl?rev=368561&r1=368560&r2=368561&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/test/SemaOpenCL/sampler_t.cl (original)<br>
+++ cfe/trunk/test/SemaOpenCL/sampler_t.cl Mon Aug 12 05:44:26 2019<br>
@@ -10,6 +10,9 @@<br>
#define CLK_FILTER_NEAREST 0x10<br>
#define CLK_FILTER_LINEAR 0x20<br>
<br>
+typedef float float4 __attribute__((ext_vector_type(4)));<br>
+float4 read_imagef(read_only image1d_t, sampler_t, float);<br>
+<br>
constant sampler_t glb_smp = CLK_ADDRESS_CLAMP_TO_EDGE | CLK_NORMALIZED_COORDS_TRUE | CLK_FILTER_LINEAR;<br>
constant sampler_t glb_smp2; // expected-error{{variable in constant address space must be initialized}}<br>
global sampler_t glb_smp3 = CLK_ADDRESS_CLAMP_TO_EDGE | CLK_NORMALIZED_COORDS_TRUE | CLK_FILTER_NEAREST; // expected-error{{sampler type cannot be used with the __local and __global address space qualifiers}} expected-error {{global sampler requires a const
or constant address space qualifier}}<br>
@@ -74,3 +77,7 @@ void bar() {<br>
foo(smp1+1); //expected-error{{invalid operands to binary expression ('sampler_t' and 'int')}}<br>
}<br>
<br>
+void smp_args(read_only image1d_t image) {<br>
+ // Test that parentheses around sampler arguments are ignored.<br>
+ float4 res = read_imagef(image, (glb_smp10), 0.0f);<br>
+}<br>
<br>
<br>
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