https://llvm.org/bugs/show_bug.cgi?id=23719
Bug ID: 23719
Summary: OpenCL: Crash with a vector initializer list with a
value that is a function call
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 14411
--> https://llvm.org/bugs/attachment.cgi?id=14411&action=edit
backtrace
// reproduce with:
// clang -DBUG test_vec_init.c -c -emit-llvm -o - -S
typedef float float2 __attribute__((__ext_vector_type__(2)));
float2 func(float2 a) {
return a;
}
void test_vec_init() {
volatile float2 a = (float2) ( 1.0f, 2.0f );
#ifndef BUG
// This works.
volatile float2 res = func(a);
volatile float2 x =
(float2) (res.x, res.y);
#else
// This crashes.
volatile float2 x =
(float2) (func(a).x, a.x);
#endif
}
When compiled in C mode (without -x cl) it doesn't crash.
Backtrace attached.
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