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| author | Felix Fietkau <nbd@nbd.name> | 2018-03-12 10:28:03 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2018-03-12 12:19:07 +0100 |
| commit | 16cec7ae67d9a1e88cb30b45f45596ba753b2afa (patch) | |
| tree | d87f443c4d8a965b9b72f127d13ec12d78d88e56 | |
| parent | fe98f2679c2e73245c06a4b6a404abba4a915930 (diff) | |
| download | upstream-16cec7ae67d9a1e88cb30b45f45596ba753b2afa.tar.gz upstream-16cec7ae67d9a1e88cb30b45f45596ba753b2afa.tar.bz2 upstream-16cec7ae67d9a1e88cb30b45f45596ba753b2afa.zip | |
toolchain/gcc: merge pending fix for miscompiled MIPS16 code issue (GCC PR 84790)
Signed-off-by: Felix Fietkau <nbd@nbd.name>
3 files changed, 22 insertions, 2 deletions
diff --git a/toolchain/gcc/patches/7.3.0/110-Fix-MIPS-PR-84790.patch b/toolchain/gcc/patches/7.3.0/110-Fix-MIPS-PR-84790.patch new file mode 100644 index 0000000000..643c5e68a8 --- /dev/null +++ b/toolchain/gcc/patches/7.3.0/110-Fix-MIPS-PR-84790.patch @@ -0,0 +1,20 @@ +Fix https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84790. +MIPS16 functions have a static assembler prologue which clobbers +registers v0 and v1. Add these register clobbers to function call +instructions. + +--- a/gcc/config/mips/mips.c ++++ b/gcc/config/mips/mips.c +@@ -3098,6 +3098,12 @@ mips_emit_call_insn (rtx pattern, rtx or + emit_insn (gen_update_got_version ()); + } + ++ if (TARGET_MIPS16 && TARGET_USE_GOT) ++ { ++ clobber_reg (&CALL_INSN_FUNCTION_USAGE (insn), MIPS16_PIC_TEMP); ++ clobber_reg (&CALL_INSN_FUNCTION_USAGE (insn), MIPS_PROLOGUE_TEMP (word_mode)); ++ } ++ + if (TARGET_MIPS16 + && TARGET_EXPLICIT_RELOCS + && TARGET_CALL_CLOBBERED_GP) diff --git a/toolchain/gcc/patches/7.3.0/300-mips_Os_cpu_rtx_cost_model.patch b/toolchain/gcc/patches/7.3.0/300-mips_Os_cpu_rtx_cost_model.patch index 84c0fdab66..2d0ae46138 100644 --- a/toolchain/gcc/patches/7.3.0/300-mips_Os_cpu_rtx_cost_model.patch +++ b/toolchain/gcc/patches/7.3.0/300-mips_Os_cpu_rtx_cost_model.patch @@ -10,7 +10,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c -@@ -19784,7 +19784,7 @@ mips_option_override (void) +@@ -19790,7 +19790,7 @@ mips_option_override (void) flag_pcc_struct_return = 0; /* Decide which rtx_costs structure to use. */ diff --git a/toolchain/gcc/patches/7.3.0/930-fix-mips-noexecstack.patch b/toolchain/gcc/patches/7.3.0/930-fix-mips-noexecstack.patch index 90d10f11e4..5affd6f92d 100644 --- a/toolchain/gcc/patches/7.3.0/930-fix-mips-noexecstack.patch +++ b/toolchain/gcc/patches/7.3.0/930-fix-mips-noexecstack.patch @@ -48,7 +48,7 @@ sellcey@mips.com --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c -@@ -22561,6 +22561,9 @@ mips_promote_function_mode (const_tree t +@@ -22567,6 +22567,9 @@ mips_promote_function_mode (const_tree t #undef TARGET_CUSTOM_FUNCTION_DESCRIPTORS #define TARGET_CUSTOM_FUNCTION_DESCRIPTORS 2 |