[PATCH] D51972: [RISCV] Explicitly set an empty --sysroot in the test

[Roger Ferrer Ibanez via Phabricator via cfe-commits]

rogfer01 created this revision.
rogfer01 added reviewers: lewis-revill, asb, simoncook, kristina.
Herald added subscribers: jocewei, PkmX, rkruppe, the_o, brucehoult, MartinMosbeck, mgrang, edward-jones, zzheng, shiva0217, kito-cheng, niosHD, sabuasal, apazos, johnrusso, rbar.

In https://reviews.llvm.org/rL341655 we added additional behaviour to the Driver for riscv32-unknown-elf when the sysroot is empty.

The new tests that check the new behaviour expect that the absence of `--sysroot` in the command-line implies that the sysroot empty. This doesn't hold if clang is built with a non-empty `DEFAULT_SYSROOT` in cmake. When this is the case, this test fails.

Since the new behaviour is triggered when the sysroot is empty, pass an empty `--sysroot` to avoid using the default (if any).


https://reviews.llvm.org/D51972

Files:
  test/Driver/riscv32-toolchain.c


Index: test/Driver/riscv32-toolchain.c
===================================================================
--- test/Driver/riscv32-toolchain.c
+++ test/Driver/riscv32-toolchain.c
@@ -21,6 +21,7 @@
 
 // RUN: %clang %s -### -no-canonical-prefixes \
 // RUN:   -target riscv32-unknown-elf \
+// RUN:   --sysroot= \
 // RUN:   --gcc-toolchain=%S/Inputs/basic_riscv32_tree 2>&1 \
 // RUN:   | FileCheck -check-prefix=C-RV32-BAREMETAL-NOSYSROOT-ILP32 %s
 
@@ -52,6 +53,7 @@
 
 // RUN: %clangxx %s -### -no-canonical-prefixes \
 // RUN:   -target riscv32-unknown-elf -stdlib=libstdc++ \
+// RUN:   --sysroot= \
 // RUN:   --gcc-toolchain=%S/Inputs/basic_riscv32_tree 2>&1 \
 // RUN:   | FileCheck -check-prefix=CXX-RV32-BAREMETAL-NOSYSROOT-ILP32 %s
 


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