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Add configure flag to build stage1 with landing pads. #28727

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Add configure flag to build stage1 with landing pads. #28727

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1 change: 1 addition & 0 deletions configure
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Original file line number Diff line number Diff line change
Expand Up @@ -578,6 +578,7 @@ opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
opt rpath 0 "build rpaths into rustc itself"
opt stage1-landing-pads 0 "compile stage1 with landing pads enabled"
# This is used by the automation to produce single-target nightlies
opt dist-host-only 0 "only install bins for the host architecture"
opt inject-std-version 1 "inject the current compiler version of libstd into programs"
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4 changes: 3 additions & 1 deletion mk/main.mk
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Expand Up @@ -170,7 +170,9 @@ RUST_LIB_FLAGS_ST3 += -C prefer-dynamic

# Landing pads require a lot of codegen. We can get through bootstrapping faster
# by not emitting them.
RUSTFLAGS_STAGE0 += -Z no-landing-pads
ifndef CFG_ENABLE_STAGE1_LANDING_PADS
RUSTFLAGS_STAGE0 += -Z no-landing-pads
endif

# Enable MIR to "always build" for crates where this works. This is
# just temporary while MIR is being actively built up -- it's just a
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