[llvm-branch-commits] [clang] [HLSL] Introduce address space `hlsl_constant(2)` for constant buffer declarations (PR #123411)

Nathan Gauër via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Wed Jan 22 01:50:46 PST 2025


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@@ -1,16 +1,21 @@
 // RUN: %clang_cc1 -finclude-default-header -triple dxil-pc-shadermodel6.3-library %s \
 // RUN:   -emit-llvm -disable-llvm-passes -o - | FileCheck %s
 
-// CHECK-DAG: @[[CB:.+]] = external constant { float }
+// RUN: %clang_cc1 -finclude-default-header -triple spirv-pc-vulkan-library %s \
+// RUN:   -emit-llvm -disable-llvm-passes -o - | FileCheck %s
 
 cbuffer A {
-    float a;
-  // CHECK-DAG:@_ZL1b = internal global float 3.000000e+00, align 4
+  // CHECK: @a = external addrspace(2) externally_initialized global float, align 4
+  float a;
+  // CHECK: @_ZL1b = internal global float 3.000000e+00, align 4
   static float b = 3;
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Keenuts wrote:

This shouldn't be legal no?
(https://github.com/llvm/llvm-project/issues/117715 )

https://github.com/llvm/llvm-project/pull/123411


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