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llvm-project/clang/test/Driver/ppc-crbits.cpp
zhijian lin bf79d4819e
[Reland] [PowerPC] frontend get target feature from backend with cpu name (#144594) 
1. The PR proceeds with a backend target hook to allow front-ends to
determine what target features are available in a compilation based on
the CPU name.
2. Fix a backend target feature bug that supports HTM for
Power8/9/10/11. However, HTM is only supported on Power8/9 according to
the ISA.
3. All target features that are hardcoded in PPC.cpp can be retrieved
from the backend target feature. I have double-checked that the
hardcoded logic for inferring target features from the CPU in the
frontend(PPC.cpp) is the same as in PPC.td.

The reland patch addressed the comment
https://github.com/llvm/llvm-project/pull/137670#discussion_r2143541120
2025-06-19 09:22:16 -04:00

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// RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -mcpu=pwr10 \
// RUN: -mcrbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-CRBITS %s
// RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -mcpu=pwr10 \
// RUN: -mno-crbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOCRBITS %s
// RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -mcpu=pwr9 \
// RUN: -mcrbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-CRBITS %s
// RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -mcpu=pwr9 \
// RUN: -mno-crbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOCRBITS %s
// RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -mcpu=pwr8 \
// RUN: -mcrbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-CRBITS %s
// RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -mcpu=pwr8 \
// RUN: -mno-crbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOCRBITS %s
// RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -mcpu=pwr7 \
// RUN: -mcrbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-CRBITS %s
// RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -mcpu=pwr7 \
// RUN: -mno-crbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOCRBITS %s
// RUN: %clang -target powerpc-ibm-aix %s -### -mcpu=pwr10 \
// RUN: -mcrbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-CRBITS %s
// RUN: %clang -target powerpc-ibm-aix %s -### -mcpu=pwr10 \
// RUN: -mno-crbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOCRBITS %s
// RUN: %clang -target powerpc-ibm-aix %s -### -mcpu=pwr9 \
// RUN: -mcrbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-CRBITS %s
// RUN: %clang -target powerpc-ibm-aix %s -### -mcpu=pwr9 \
// RUN: -mno-crbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOCRBITS %s
// RUN: %clang -target powerpc-ibm-aix %s -### -mcpu=pwr8 \
// RUN: -mcrbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-CRBITS %s
// RUN: %clang -target powerpc-ibm-aix %s -### -mcpu=pwr8 \
// RUN: -mno-crbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOCRBITS %s
// RUN: %clang -target powerpc-ibm-aix %s -### -mcpu=pwr7 \
// RUN: -mcrbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-CRBITS %s
// RUN: %clang -target powerpc-ibm-aix %s -### -mcpu=pwr7 \
// RUN: -mno-crbits -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOCRBITS %s
// CHECK-NOCRBITS: "-target-feature" "-crbits"
// CHECK-CRBITS: "-target-feature" "+crbits"
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr10 -emit-llvm \
// RUN: -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr10 -mcrbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr10 -mno-crbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-NOCRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr9 -emit-llvm \
// RUN: -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr9 -mcrbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr9 -mno-crbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-NOCRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr8 -emit-llvm \
// RUN: -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr8 -mcrbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr8 -mno-crbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-NOCRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr7 -mcrbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc64le-unknown-linux-gnu -mcpu=pwr7 -mno-crbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-NOCRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr10 -emit-llvm \
// RUN: -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr10 -mcrbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr10 -mno-crbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-NOCRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr9 -emit-llvm \
// RUN: -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr9 -mcrbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr9 -mno-crbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-NOCRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr8 -emit-llvm \
// RUN: -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr8 -mcrbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr8 -mno-crbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-NOCRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr7 -mcrbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-CRBITS
// RUN: %clang -target powerpc-ibm-aix -mcpu=pwr7 -mno-crbits \
// RUN: -emit-llvm -S %s -o - | FileCheck %s --check-prefix=HAS-NOCRBITS
// HAS-CRBITS: main(
// HAS-CRBITS: attributes #0 = {
// HAS-CRBITS-SAME: +crbits
// HAS-NOCRBITS: main(
// HAS-NOCRBITS: attributes #0 = {
// HAS-NOCRBITS-SAME: -crbits
int main(int argc, char *argv[]) {
return 0;
}
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