[clang] d64972c - clang-linker-wrapper: Add additional amdgpu device merging tests (#209428)

[via cfe-commits]

Author: Matt Arsenault
Date: 2026-07-14T14:23:11+02:00
New Revision: d64972c91369c6372e23e728881d9c645edeb37d

URL: https://github.com/llvm/llvm-project/commit/d64972c91369c6372e23e728881d9c645edeb37d
DIFF: https://github.com/llvm/llvm-project/commit/d64972c91369c6372e23e728881d9c645edeb37d.diff

LOG: clang-linker-wrapper: Add additional amdgpu device merging tests (#209428)

Added: 
    

Modified: 
    clang/test/OffloadTools/clang-linker-wrapper/linker-wrapper.c

Removed: 
    


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diff  --git a/clang/test/OffloadTools/clang-linker-wrapper/linker-wrapper.c b/clang/test/OffloadTools/clang-linker-wrapper/linker-wrapper.c
index 0e018dc3af8c9..45bf1b6e93cf0 100644
--- a/clang/test/OffloadTools/clang-linker-wrapper/linker-wrapper.c
+++ b/clang/test/OffloadTools/clang-linker-wrapper/linker-wrapper.c
@@ -201,6 +201,55 @@ __attribute__((visibility("protected"), used)) int x;
 // AMD-GENERIC-MERGE: clang{{.*}} -o {{.*}}.img -dumpdir a.out.amdgcn.gfx90a:xnack+.img. --target=amdgcn-amd-amdhsa -mcpu=gfx90a:xnack+ -Wl,--no-undefined {{.*}}.o {{.*}}.o
 // AMD-GENERIC-MERGE: clang{{.*}} -o {{.*}}.img -dumpdir a.out.amdgcn.gfx90a:xnack-.img. --target=amdgcn-amd-amdhsa -mcpu=gfx90a:xnack- -Wl,--no-undefined {{.*}}.o {{.*}}.o
 
+// A feature-unspecified (sramecc "any") object is compatible with an explicit
+// sramecc+ object and is linked into its image, producing a single sramecc+
+// image with no separate feature-unspecified image.
+// RUN: llvm-offload-binary -o %t-secc-on.out \
+// RUN:   --image=file=%t.elf.o,kind=openmp,triple=amdgcn-amd-amdhsa,arch=gfx90a:sramecc+
+// RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-obj -o %t-secc-on.o -fembed-offload-object=%t-secc-on.out
+// RUN: llvm-offload-binary -o %t-secc-any.out \
+// RUN:   --image=file=%t.elf.o,kind=openmp,triple=amdgcn-amd-amdhsa,arch=gfx90a
+// RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-obj -o %t-secc-any.o -fembed-offload-object=%t-secc-any.out
+// RUN: clang-linker-wrapper --host-triple=x86_64-unknown-linux-gnu --dry-run \
+// RUN:   --linker-path=/usr/bin/ld %t-secc-on.o %t-secc-any.o -o a.out 2>&1 | FileCheck %s --check-prefix=AMD-SRAMECC-ANY-MERGE
+
+// AMD-SRAMECC-ANY-MERGE: clang{{.*}} -o {{.*}}.img -dumpdir a.out.amdgcn.gfx90a:sramecc+.img. --target=amdgcn-amd-amdhsa -mcpu=gfx90a:sramecc+ -Wl,--no-undefined {{.*}}.o {{.*}}.o
+// AMD-SRAMECC-ANY-MERGE-NOT: -mcpu=gfx90a -Wl,--no-undefined
+
+// Objects with explicit conflicting sramecc settings form separate images.
+// RUN: llvm-offload-binary -o %t-generic.out \
+// RUN:   --image=file=%t.elf.o,kind=openmp,triple=amdgcn-amd-amdhsa,arch=gfx90a
+// RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-obj -o %t-generic.o -fembed-offload-object=%t-generic.out
+// RUN: llvm-offload-binary -o %t-secc-on.out \
+// RUN:   --image=file=%t.elf.o,kind=openmp,triple=amdgcn-amd-amdhsa,arch=gfx90a:sramecc+
+// RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-obj -o %t-secc-on.o -fembed-offload-object=%t-secc-on.out
+// RUN: llvm-offload-binary -o %t-secc-off.out \
+// RUN:   --image=file=%t.elf.o,kind=openmp,triple=amdgcn-amd-amdhsa,arch=gfx90a:sramecc-
+// RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-obj -o %t-secc-off.o -fembed-offload-object=%t-secc-off.out
+// RUN: clang-linker-wrapper --host-triple=x86_64-unknown-linux-gnu --dry-run \
+// RUN:   --linker-path=/usr/bin/ld %t-secc-on.o %t-secc-off.o %t-generic.o -o a.out 2>&1 | FileCheck %s --check-prefix=AMD-SRAMECC-MERGE
+
+// AMD-SRAMECC-MERGE-NOT: -mcpu=gfx90a -Wl,--no-undefined
+// AMD-SRAMECC-MERGE: clang{{.*}} -o {{.*}}.img -dumpdir a.out.amdgcn.gfx90a:sramecc+.img. --target=amdgcn-amd-amdhsa -mcpu=gfx90a:sramecc+ -Wl,--no-undefined {{.*}}.o {{.*}}.o
+// AMD-SRAMECC-MERGE: clang{{.*}} -o {{.*}}.img -dumpdir a.out.amdgcn.gfx90a:sramecc-.img. --target=amdgcn-amd-amdhsa -mcpu=gfx90a:sramecc- -Wl,--no-undefined {{.*}}.o {{.*}}.o
+
+// Distinct processors, including a specific processor and a member of its
+// generic family (gfx900 and gfx9-generic), are separate compilation targets
+// and are never merged: each is linked into its own device image. Merging them
+// would combine device code from 
diff erent translation units and produce
+// duplicate symbols.
+// RUN: llvm-offload-binary -o %t-gfx900.out \
+// RUN:   --image=file=%t.elf.o,kind=openmp,triple=amdgcn-amd-amdhsa,arch=gfx900
+// RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-obj -o %t-gfx900.o -fembed-offload-object=%t-gfx900.out
+// RUN: llvm-offload-binary -o %t-gfx9gen.out \
+// RUN:   --image=file=%t.elf.o,kind=openmp,triple=amdgcn-amd-amdhsa,arch=gfx9-generic
+// RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-obj -o %t-gfx9gen.o -fembed-offload-object=%t-gfx9gen.out
+// RUN: clang-linker-wrapper --host-triple=x86_64-unknown-linux-gnu --dry-run \
+// RUN:   --linker-path=/usr/bin/ld %t-gfx900.o %t-gfx9gen.o -o a.out 2>&1 | FileCheck %s --check-prefix=AMD-DISTINCT-PROC
+
+// AMD-DISTINCT-PROC-DAG: clang{{.*}} --target=amdgcn-amd-amdhsa -mcpu=gfx900 -Wl,--no-undefined {{.*}}.o
+// AMD-DISTINCT-PROC-DAG: clang{{.*}} --target=amdgcn-amd-amdhsa -mcpu=gfx9-generic -Wl,--no-undefined {{.*}}.o
+
 // RUN: llvm-offload-binary -o %t-lib.out \
 // RUN:   --image=file=%t.elf.o,kind=openmp,triple=amdgcn-amd-amdhsa,arch=generic
 // RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-obj -o %t.o -fembed-offload-object=%t-lib.out