diff --git a/clang/lib/Driver/ToolChains/BareMetal.cpp b/clang/lib/Driver/ToolChains/BareMetal.cpp
index 658c79cafa83..6c9695ca5c2c 100644
--- a/clang/lib/Driver/ToolChains/BareMetal.cpp
+++ b/clang/lib/Driver/ToolChains/BareMetal.cpp
@@ -529,6 +529,9 @@ void baremetal::Linker::ConstructJob(Compilation &C, const JobAction &JA,
   const llvm::Triple::ArchType Arch = TC.getArch();
   const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
 
+  if (!D.SysRoot.empty())
+    CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
+
   CmdArgs.push_back("-Bstatic");
 
   if (TC.getTriple().isRISCV() && Args.hasArg(options::OPT_mno_relax))
diff --git a/clang/test/Driver/aarch64-toolchain.c b/clang/test/Driver/aarch64-toolchain.c
index d45be9a6ee64..eaf658590951 100644
--- a/clang/test/Driver/aarch64-toolchain.c
+++ b/clang/test/Driver/aarch64-toolchain.c
@@ -17,6 +17,7 @@
 // C-AARCH64-BAREMETAL: "-isysroot" "{{.*}}Inputs/basic_aarch64_gcc_tree/aarch64-none-elf"
 // C-AARCH64-BAREMETAL: "-internal-isystem" "{{.*}}Inputs/basic_aarch64_gcc_tree/aarch64-none-elf/include"
 // C-AARCH64-BAREMETAL: "{{.*}}/Inputs/basic_aarch64_gcc_tree/lib/gcc/aarch64-none-elf/8.2.1/../../../../bin/aarch64-none-elf-ld"
+// C-AARCH64-BAREMETAL: "--sysroot={{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf"
 // C-AARCH64-BAREMETAL: "-Bstatic" "-EL"
 // C-AARCH64-BAREMETAL: "{{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf/lib/crt0.o"
 // C-AARCH64-BAREMETAL: "{{.*}}/Inputs/basic_aarch64_gcc_tree/lib/gcc/aarch64-none-elf/8.2.1/crtbegin.o"
@@ -53,6 +54,7 @@
 // CXX-AARCH64-BAREMETAL: "-internal-isystem" "{{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf/include/c++/8.2.1"
 // CXX-AARCH64-BAREMETAL: "-internal-isystem" "{{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf/include"
 // CXX-AARCH64-BAREMETAL: "{{.*}}/Inputs/basic_aarch64_gcc_tree/lib/gcc/aarch64-none-elf/8.2.1/../../../../bin/aarch64-none-elf-ld"
+// CXX-AARCH64-BAREMETAL: "--sysroot={{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf"
 // CXX-AARCH64-BAREMETAL: "-Bstatic" "-EL"
 // CXX-AARCH64-BAREMETAL: "{{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf/lib/crt0.o"
 // CXX-AARCH64-BAREMETAL: "{{.*}}/Inputs/basic_aarch64_gcc_tree/lib/gcc/aarch64-none-elf/8.2.1/crtbegin.o"
@@ -89,7 +91,8 @@
 // CXX-AARCH64-BAREMETAL-LIBCXX: "-isysroot" "{{.*}}Inputs/basic_aarch64_gcc_tree/aarch64-none-elf"
 // CXX-AARCH64-BAREMETAL-LIBCXX: "-internal-isystem" "{{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf/include/c++/v1"
 // CXX-AARCH64-BAREMETAL-LIBCXX: "-internal-isystem" "{{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf/include"
-// CXX-AARCH64-BAREMETAL-LIBCXX: "{{.*}}/Inputs/basic_aarch64_gcc_tree/lib/gcc/aarch64-none-elf/8.2.1/../../../../bin/aarch64-none-elf-ld
+// CXX-AARCH64-BAREMETAL-LIBCXX: "{{.*}}/Inputs/basic_aarch64_gcc_tree/lib/gcc/aarch64-none-elf/8.2.1/../../../../bin/aarch64-none-elf-ld"
+// CXX-AARCH64-BAREMETAL-LIBCXX: "--sysroot={{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf"
 // CXX-AARCH64-BAREMETAL-LIBCXX: "-Bstatic" "-EL"
 // CXX-AARCH64-BAREMETAL-LIBCXX: "{{.*}}/Inputs/basic_aarch64_gcc_tree/aarch64-none-elf/lib/crt0.o"
 // CXX-AARCH64-BAREMETAL-LIBCXX: "{{.*}}/Inputs/basic_aarch64_gcc_tree/lib/gcc/aarch64-none-elf/8.2.1/crtbegin.o"
diff --git a/clang/test/Driver/arm-toolchain.c b/clang/test/Driver/arm-toolchain.c
index d89f77b86c23..ac4fe8d2271f 100644
--- a/clang/test/Driver/arm-toolchain.c
+++ b/clang/test/Driver/arm-toolchain.c
@@ -17,6 +17,7 @@
 // C-ARM-BAREMETAL: "-isysroot" "{{.*}}Inputs/basic_arm_gcc_tree/armv6m-none-eabi"
 // C-ARM-BAREMETAL: "-internal-isystem" "{{.*}}Inputs/basic_arm_gcc_tree/armv6m-none-eabi/include"
 // C-ARM-BAREMETAL: "{{.*}}/Inputs/basic_arm_gcc_tree/lib/gcc/armv6m-none-eabi/8.2.1/../../../../bin/armv6m-none-eabi-ld"
+// C-ARM-BAREMETAL: "--sysroot={{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi"
 // C-ARM-BAREMETAL: "-Bstatic" "-EL"
 // C-ARM-BAREMETAL: "{{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi/lib/crt0.o"
 // C-ARM-BAREMETAL: "{{.*}}/Inputs/basic_arm_gcc_tree/lib/gcc/armv6m-none-eabi/8.2.1/crtbegin.o"
@@ -54,6 +55,7 @@
 // CXX-ARM-BAREMETAL: "-internal-isystem" "{{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi/include/c++/8.2.1"
 // CXX-ARM-BAREMETAL: "-internal-isystem" "{{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi/include"
 // CXX-ARM-BAREMETAL: "{{.*}}/Inputs/basic_arm_gcc_tree/lib/gcc/armv6m-none-eabi/8.2.1/../../../../bin/armv6m-none-eabi-ld"
+// CXX-ARM-BAREMETAL: "--sysroot={{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi"
 // CXX-ARM-BAREMETAL: "-Bstatic" "-EL"
 // CXX-ARM-BAREMETAL: "{{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi/lib/crt0.o"
 // CXX-ARM-BAREMETAL: "{{.*}}/Inputs/basic_arm_gcc_tree/lib/gcc/armv6m-none-eabi/8.2.1/crtbegin.o"
@@ -92,6 +94,7 @@
 // CXX-ARM-BAREMETAL-LIBCXX: "-internal-isystem" "{{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi/include/c++/v1"
 // CXX-ARM-BAREMETAL-LIBCXX: "-internal-isystem" "{{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi/include"
 // CXX-ARM-BAREMETAL-LIBCXX: "{{.*}}/Inputs/basic_arm_gcc_tree/lib/gcc/armv6m-none-eabi/8.2.1/../../../../bin/armv6m-none-eabi-ld"
+// CXX-ARM-BAREMETAL-LIBCXX: "--sysroot={{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi"
 // CXX-ARM-BAREMETAL-LIBCXX: "-Bstatic" "-EL"
 // CXX-ARM-BAREMETAL-LIBCXX: "{{.*}}/Inputs/basic_arm_gcc_tree/armv6m-none-eabi/lib/crt0.o"
 // CXX-ARM-BAREMETAL-LIBCXX: "{{.*}}/Inputs/basic_arm_gcc_tree/lib/gcc/armv6m-none-eabi/8.2.1/crtbegin.o"
diff --git a/clang/test/Driver/baremetal.cpp b/clang/test/Driver/baremetal.cpp
index 2372539cee03..3b841d3f0af0 100644
--- a/clang/test/Driver/baremetal.cpp
+++ b/clang/test/Driver/baremetal.cpp
@@ -15,7 +15,9 @@
 // CHECK-V6M-C-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECK-V6M-C-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}include"
 // CHECK-V6M-C-SAME: "-x" "c++" "{{.*}}baremetal.cpp"
-// CHECK-V6M-C-NEXT: ld{{(.exe)?}}" "-Bstatic" "-EL"
+// CHECK-V6M-C-NEXT: ld{{(.exe)?}}"
+// CHECK-V6M-C-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-V6M-C-SAME: "-Bstatic" "-EL"
 // CHECK-V6M-C-SAME: "[[SYSROOT:[^"]+]]{{[/\\]+}}lib{{[/\\]+}}crt0.o"
 // CHECK-V6M-C-SAME: "-T" "semihosted.lds" "-Lsome{{[/\\]+}}directory{{[/\\]+}}user{{[/\\]+}}asked{{[/\\]+}}for"
 // CHECK-V6M-C-SAME: "-L[[SYSROOT:[^"]+]]{{[/\\]+}}lib"
@@ -55,7 +57,9 @@
 // CHECK-ARMV7M-PER-TARGET: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-ARMV7M-PER-TARGET: "-isysroot" "[[SYSROOT:[^"]*]]"
 // CHECK-ARMV7M-PER-TARGET: "-x" "c++" "{{.*}}baremetal.cpp"
-// CHECK-ARMV7M-PER-TARGET: ld{{(.exe)?}}" "-Bstatic" "-EL"
+// CHECK-ARMV7M-PER-TARGET: ld{{(.exe)?}}"
+// CHECK-ARMV7M-PER-TARGET: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-ARMV7M-PER-TARGET: "-Bstatic" "-EL"
 // CHECK-ARMV7M-PER_TARGET: "[[SYSROOT:[^"]+]]{{[/\\]+}}lib{{[/\\]+}}crt0.o"
 // CHECK-ARMV7M-PER-TARGET: "-L[[SYSROOT:[^"]+]]{{[/\\]+}}lib"
 // CHECK-ARMV7M-PER-TARGET: "-L[[RESOURCE_DIR:[^"]+]]{{[/\\]+}}lib{{[/\\]+}}armv7m-vendor-none-eabi
@@ -66,7 +70,9 @@
 // RUN: %clangxx %s -### --target=armv6m-none-eabi 2>&1 \
 // RUN:     --sysroot=%S/Inputs/baremetal_arm | FileCheck --check-prefix=CHECK-V6M-DEFAULTCXX %s
 // CHECK-V6M-DEFAULTCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK-V6M-DEFAULTCXX: ld{{(.exe)?}}" "-Bstatic" "-EL"
+// CHECK-V6M-DEFAULTCXX: ld{{(.exe)?}}"
+// CHECK-V6M-DEFAULTCXX: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-V6M-DEFAULTCXX: "-Bstatic" "-EL"
 // CHECK-V6M-DEFAULTCXX-SAME: "[[SYSROOT:[^"]+]]{{[/\\]+}}lib{{[/\\]+}}crt0.o"
 // CHECK-V6M-DEFAULTCXX-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm{{[/\\]+}}lib"
 // CHECK-V6M-DEFAULTCXX-SAME: "{{.*}}.o"
@@ -81,7 +87,9 @@
 // CHECK-V6M-LIBCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-V6M-LIBCXX-NOT: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}{{[^v].*}}"
 // CHECK-V6M-LIBCXX-SAME: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
-// CHECK-V6M-LIBCXX: ld{{(.exe)?}}" "-Bstatic" "-EL"
+// CHECK-V6M-LIBCXX: ld{{(.exe)?}}"
+// CHECK-V6M-LIBCXX-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-V6M-LIBCXX-SAME: "-Bstatic" "-EL"
 // CHECK-V6M-LIBCXX-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm{{[/\\]+}}lib"
 // CHECK-V6M-LIBCXX-SAME: "{{.*}}.o"
 // CHECK-V6M-LIBCXX-SAME: "-lc++"
@@ -97,7 +105,9 @@
 // CHECK-V6M-LIBSTDCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-V6M-LIBSTDCXX-NOT: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECK-V6M-LIBSTDCXX-SAME: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}6.0.0"
-// CHECK-V6M-LIBSTDCXX: ld{{(.exe)?}}" "-Bstatic" "-EL"
+// CHECK-V6M-LIBSTDCXX: ld{{(.exe)?}}"
+// CHECK-V6M-LIBSTDCXX-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-V6M-LIBSTDCXX-SAME: "-Bstatic" "-EL"
 // CHECK-V6M-LIBSTDCXX-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm{{[/\\]+}}lib"
 // CHECK-V6M-LIBSTDCXX-SAME: "{{.*}}.o"
 // CHECK-V6M-LIBSTDCXX-SAME: "-lstdc++" "-lm"
@@ -110,7 +120,9 @@
 // RUN:     -nodefaultlibs \
 // RUN:   | FileCheck --check-prefix=CHECK-V6M-NDL %s
 // CHECK-V6M-NDL: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK-V6M-NDL: ld{{(.exe)?}}" "-Bstatic" "-EL"
+// CHECK-V6M-NDL: ld{{(.exe)?}}"
+// CHECK-V6M-NDL: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-V6M-NDL: "-Bstatic" "-EL"
 // CHECK-V6M-NDL-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm{{[/\\]+}}lib"
 
 // RUN: rm -rf %T/baremetal_cxx_sysroot
@@ -156,7 +168,9 @@
 
 // RUN: %clang -### %s --target=armebv7-none-eabi --sysroot=%S/Inputs/baremetal_arm 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-ARMV7EB %s
-// CHECK-ARMV7EB: "{{.*}}ld{{(.exe)?}}" "-Bstatic" "--be8" "-EB"
+// CHECK-ARMV7EB: "{{.*}}ld{{(.exe)?}}"
+// CHECK-ARMV7EB: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-ARMV7EB: "-Bstatic" "--be8" "-EB"
 
 // RUN: %clang -### %s --target=armv7-none-eabi -mbig-endian --sysroot=%S/Inputs/baremetal_arm 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-ARMV7EB %s
@@ -166,7 +180,9 @@
 
 // RUN: %clang -### %s --target=armv7-none-eabi --sysroot=%S/Inputs/baremetal_arm 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-ARMV7EL %s
-// CHECK-ARMV7EL: "{{.*}}ld{{(.exe)?}}" "-Bstatic" "-EL"
+// CHECK-ARMV7EL: "{{.*}}ld{{(.exe)?}}"
+// CHECK-ARMV7EL: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-ARMV7EL: "-Bstatic" "-EL"
 // CHECK-ARMV7EL-NOT: "--be8"
 
 // RUN: %clang -### %s --target=armebv7-none-eabi -mlittle-endian --sysroot=%S/Inputs/baremetal_arm 2>&1 \
@@ -177,7 +193,9 @@
 
 // RUN: %clang -### %s --target=aarch64_be-none-elf --sysroot=%S/Inputs/baremetal_arm 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-AARCH64BE %s
-// CHECK-AARCH64BE: "{{.*}}ld{{(.exe)?}}" "-Bstatic" "-EB"
+// CHECK-AARCH64BE: "{{.*}}ld{{(.exe)?}}"
+// CHECK-AARCH64BE: sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-AARCH64BE: "-Bstatic" "-EB"
 // CHECK-AARCH64BE-NOT: "--be8"
 
 // RUN: %clang -### %s --target=aarch64-none-elf -mbig-endian --sysroot=%S/Inputs/baremetal_arm 2>&1 \
@@ -188,7 +206,9 @@
 
 // RUN: %clang -### %s --target=aarch64-none-elf --sysroot=%S/Inputs/baremetal_arm 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-AARCH64LE %s
-// CHECK-AARCH64LE: "{{.*}}ld{{(.exe)?}}" "-Bstatic" "-EL"
+// CHECK-AARCH64LE: "{{.*}}ld{{(.exe)?}}"
+// CHECK-AARCH64LE: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}baremetal_arm"
+// CHECK-AARCH64LE: "-Bstatic" "-EL"
 // CHECK-AARCH64LE-NOT: "--be8"
 
 // RUN: %clang -### %s --target=aarch64_be-none-elf -mlittle-endian --sysroot=%S/Inputs/baremetal_arm 2>&1 \
@@ -228,7 +248,9 @@
 // CHECK-RV64-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECk-RV64-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}include"
 // CHECK-RV64-SAME: "-x" "c++" "{{.*}}baremetal.cpp"
-// CHECK-RV64-NEXT: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV64-NEXT: ld{{(.exe)?}}"
+// CHECK-RV64-SAME: "--sysroot={{.*}}/Inputs/basic_riscv64_tree/riscv64-unknown-elf"
+// CHECK-RV64-SAME: "-Bstatic"
 // CHECK-RV64-SAME: "-Lsome{{[/\\]+}}directory{{[/\\]+}}user{{[/\\]+}}asked{{[/\\]+}}for"
 // CHECK-RV64-SAME: "-L[[SYSROOT:[^"]+]]{{[/\\]+}}lib"
 // CHECK-RV64-SAME:"{{.*}}.o"
@@ -240,7 +262,9 @@
 // RUN:     --sysroot=%S/Inputs/basic_riscv64_tree/riscv64-unknown-elf \
 // RUN:   | FileCheck --check-prefix=CHECK-RV64-DEFAULTCXX %s
 // CHECK-RV64-DEFAULTCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK-RV64-DEFAULTCXX: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV64-DEFAULTCXX: ld{{(.exe)?}}"
+// CHECK-RV64-DEFAULTCXX-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv64_tree{{[/\\]+}}riscv64-unknown-elf"
+// CHECK-RV64-DEFAULTCXX-SAME: -Bstatic"
 // CHECK-RV64-DEFAULTCXX-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv64_tree{{[/\\]+}}riscv64-unknown-elf{{[/\\]+}}lib"
 // CHECK-RV64-DEFAULTCXX-SAME:"{{.*}}.o"
 // CHECK-RV64-DEFAULTCXX-SAME: "-lc++" "-lm"
@@ -255,7 +279,9 @@
 // CHECK-RV64-LIBCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-RV64-LIBCXX-NOT: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}{{[^v].*}}"
 // CHECK-RV64-LIBCXX-SAME: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
-// CHECK-RV64-LIBCXX: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV64-LIBCXX: ld{{(.exe)?}}"
+// CHECK-RV64-LIBCXX-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv64_tree{{[/\\]+}}riscv64-unknown-elf"
+// CHECK-RV64-LIBCXX-SAME: "-Bstatic"
 // CHECK-RV64-LIBCXX-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv64_tree{{[/\\]+}}riscv64-unknown-elf{{[/\\]+}}lib"
 // CHECK-RV64-LIBCXX-SAME:"{{.*}}.o"
 // CHECK-RV64-LIBCXX-SAME: "-lc++" "-lm"
@@ -270,7 +296,9 @@
 // CHECK-RV64-LIBSTDCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-RV64-LIBSTDCXX-NOT: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECK-RV64-LIBSTDCXX-SAME: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}8.0.1"
-// CHECK-RV64-LIBSTDCXX: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV64-LIBSTDCXX: ld{{(.exe)?}}"
+// CHECK-RV64-LIBSTDCXX-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv64_tree{{[/\\]+}}riscv64-unknown-elf"
+// CHECK-RV64-LIBSTDCXX-SAME: "-Bstatic"
 // CHECK-RV64-LIBSTDCXX-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv64_tree{{[/\\]+}}riscv64-unknown-elf{{[/\\]+}}lib"
 // CHECK-RV64-LIBSTDCXX-SAME: "{{.*}}.o"
 // CHECK-RV64-LIBSTDCXX-SAME: "-lstdc++" "-lm"
@@ -288,7 +316,9 @@
 // CHECK-RV32-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECK-RV32-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}include"
 // CHECK-RV32-SAME: "-x" "c++" "{{.*}}baremetal.cpp"
-// CHECK-RV32-NEXT: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV32-NEXT: ld{{(.exe)?}}"
+// CHECK-RV32-SAME: "--sysroot={{.*}}/Inputs/basic_riscv32_tree/riscv32-unknown-elf"
+// CHECK-RV32-SAME: "-Bstatic"
 // CHECK-RV32-SAME: "-Lsome{{[/\\]+}}directory{{[/\\]+}}user{{[/\\]+}}asked{{[/\\]+}}for"
 // CHECK-RV32-SAME: "-L[[SYSROOT:[^"]+]]{{[/\\]+}}lib"
 // CHECK-RV32-SAME: "{{.*}}.o"
@@ -300,7 +330,9 @@
 // RUN:     --sysroot=%S/Inputs/basic_riscv32_tree/riscv32-unknown-elf \
 // RUN:   | FileCheck --check-prefix=CHECK-RV32-DEFAULTCXX %s
 // CHECK-RV32-DEFAULTCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK-RV32-DEFAULTCXX: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV32-DEFAULTCXX: ld{{(.exe)?}}"
+// CHECK-RV32-DEFAULTCXX-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf"
+// CHECK-RV32-DEFAULTCXX-SAME: "-Bstatic"
 // CHECK-RV32-DEFAULTCXX-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf{{[/\\]+}}lib"
 // CHECK-RV32-DEFAULTCXX-SAME: "{{.*}}.o"
 // CHECK-RV32-DEFAULTCXX-SAME: "-lc++" "-lm"
@@ -315,7 +347,9 @@
 // CHECK-RV32-LIBCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-RV32-LIBCXX-NOT: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}{{[^v].*}}"
 // CHECK-RV32-LIBCXX-SAME: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
-// CHECK-RV32-LIBCXX: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV32-LIBCXX: ld{{(.exe)?}}"
+// CHECK-RV32-LIBCXX-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf"
+// CHECK-RV32-LIBCXX-SAME: "-Bstatic"
 // CHECK-RV32-LIBCXX-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf{{[/\\]+}}lib"
 // CHECK-RV32-LIBCXX-SAME: "{{.*}}.o"
 // CHECK-RV32-LIBCXX-SAME: "-lc++" "-lm"
@@ -329,7 +363,9 @@
 // CHECK-RV32-LIBSTDCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-RV32-LIBSTDCXX-NOT: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECK-RV32-LIBSTDCXX-SAME: "-internal-isystem" "{{[^"]+}}{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}8.0.1"
-// CHECK-RV32-LIBSTDCXX: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV32-LIBSTDCXX: ld{{(.exe)?}}"
+// CHECK-RV32-LIBSTDCXX-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf"
+// CHECK-RV32-LIBSTDCXX-SAME: "-Bstatic"
 // CHECK-RV32-LIBSTDCXX-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf{{[/\\]+}}lib"
 // CHECK-RV32-LIBSTDCXX-SAME: "{{.*}}.o"
 // CHECK-RV32-LIBSTDCXX-SAME: "-lstdc++" "-lm"
@@ -352,7 +388,9 @@
 // RUN:     -nodefaultlibs \
 // RUN:   | FileCheck --check-prefix=CHECK-RV64-NDL %s
 // CHECK-RV64-NDL: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK-RV64-NDL: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV64-NDL: ld{{(.exe)?}}"
+// CHECK-RV64-NDL-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv64_tree{{[/\\]+}}riscv64-unknown-elf"
+// CHECK-RV64-NDL-SAME: "-Bstatic"
 // CHECK-RV64-NDL-SAME: "-L{{[^"]*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv64_tree{{[/\\]+}}riscv64-unknown-elf{{[/\\]+}}lib"
 
 // RUN: %clang %s -### 2>&1 --target=riscv64-unknown-elf \
@@ -371,7 +409,9 @@
 // CHECK-RV64FD-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv64imafdc{{[/\\]+}}lp64d{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECk-RV64FD-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv64imafdc{{[/\\]+}}lp64d{{[/\\]+}}include"
 // CHECK-RV64FD-SAME: "-x" "c++" "{{.*}}baremetal.cpp"
-// CHECK-RV64FD-NEXT: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV64FD-NEXT: ld{{(.exe)?}}"
+// CHECK-RV64FD-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv64_tree{{[/\\]+}}riscv64-unknown-elf"
+// CHECK-RV64FD-SAME: "-Bstatic"
 // CHECK-RV64FD-SAME: "-L[[SYSROOT:[^"]+]]{{[/\\]+}}rv64imafdc{{[/\\]+}}lp64d{{[/\\]+}}lib"
 
 // RUN: %clang %s -### 2>&1 --target=riscv32-unknown-elf \
@@ -390,7 +430,9 @@
 // CHECK-RV32I-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv32i{{[/\\]+}}ilp32{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECK-RV32I-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv32i{{[/\\]+}}ilp32{{[/\\]+}}include"
 // CHECK-RV32I-SAME: "-x" "c++" "{{.*}}baremetal.cpp"
-// CHECK-RV32I-NEXT: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV32I-NEXT: ld{{(.exe)?}}"
+// CHECK-RV32I-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf"
+// CHECK-RV32I-SAME: "-Bstatic"
 // CHECK-RV32I-SAME: "-L[[SYSROOT:[^"]+]]{{[/\\]+}}rv32i{{[/\\]+}}ilp32{{[/\\]+}}lib"
 
 // RUN: %clang %s -### 2>&1 --target=riscv32-unknown-elf \
@@ -409,7 +451,9 @@
 // CHECK-RV32IM-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv32im{{[/\\]+}}ilp32{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECK-RV32IM-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv32im{{[/\\]+}}ilp32{{[/\\]+}}include"
 // CHECK-RV32IM-SAME: "-x" "c++" "{{.*}}baremetal.cpp"
-// CHECK-RV32IM-NEXT: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV32IM-NEXT: ld{{(.exe)?}}"
+// CHECK-RV32IM-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf"
+// CHECK-RV32IM-SAME: "-Bstatic"
 // CHECK-RV32IM-SAME: "-L[[SYSROOT:[^"]+]]{{[/\\]+}}rv32im{{[/\\]+}}ilp32{{[/\\]+}}lib"
 
 // RUN: %clang %s -### 2>&1 --target=riscv32-unknown-elf \
@@ -423,7 +467,9 @@
 // CHECK-RV32IAC-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv32iac{{[/\\]+}}ilp32{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECK-RV32IAC-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv32iac{{[/\\]+}}ilp32{{[/\\]+}}include"
 // CHECK-RV32IAC-SAME: "-x" "c++" "{{.*}}baremetal.cpp"
-// CHECK-RV32IAC-NEXT: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV32IAC-NEXT: ld{{(.exe)?}}"
+// CHECK-RV32IAC-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf"
+// CHECK-RV32IAC-SAME: "-Bstatic"
 // CHECK-RV32IAC-SAME: "-L[[SYSROOT:[^"]+]]{{[/\\]+}}rv32iac{{[/\\]+}}ilp32{{[/\\]+}}lib"
 
 // RUN: %clang %s -### 2>&1 --target=riscv32-unknown-elf -march=rv32imafc -mabi=ilp32f \
@@ -444,7 +490,9 @@
 // CHECK-RV32IMAFC-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv32imafc{{[/\\]+}}ilp32f{{[/\\]+}}include{{[/\\]+}}c++{{[/\\]+}}v1"
 // CHECK-RV32IMAFC-SAME: "-internal-isystem" "[[SYSROOT]]{{[/\\]+}}rv32imafc{{[/\\]+}}ilp32f{{[/\\]+}}include"
 // CHECK-RV32IMAFC-SAME: "-x" "c++" "{{.*}}baremetal.cpp"
-// CHECK-RV32IMAFC-NEXT: ld{{(.exe)?}}" "-Bstatic"
+// CHECK-RV32IMAFC-NEXT: ld{{(.exe)?}}"
+// CHECK-RV32IMAFC-SAME: "--sysroot={{.*}}{{[/\\]+}}Inputs{{[/\\]+}}basic_riscv32_tree{{[/\\]+}}riscv32-unknown-elf"
+// CHECK-RV32IMAFC-SAME: "-Bstatic"
 // CHECK-RV32IMAFC-SAME: "-L[[SYSROOT:[^"]+]]{{[/\\]+}}rv32imafc{{[/\\]+}}ilp32f{{[/\\]+}}lib"
 
 // RUN: %clang -no-canonical-prefixes %s -### --target=powerpc-unknown-eabi 2>&1 \