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Get codebase completely working with LLVM

Browse Source 
You can now build Cosmopolitan with Clang:

    make -j8 MODE=llvm
    o/llvm/examples/hello.com

The assembler and linker code is now friendly to LLVM too.
So it's not needed to configure Clang to use binutils under
the hood. If you love LLVM then you can now use pure LLVM.
This commit is contained in:
Justine Tunney
2021-02-08 09:19:00 -08:00
parent 0e36cb3ac4
commit e75ffde09e
4528 changed files with 7776 additions and 11640 deletions
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46
test/tool/build/lib/alu_test.c
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@ -29,16 +29,20 @@
#define ALU_TEST 8
#define NATIVE_ALU2(MODE, INSTRUCTION) \
asm("pushf\n\t" \
"andl\t%3,(%%rsp)\n\t" \
"orl\t%4,(%%rsp)\n\t" \
"popf\n\t" INSTRUCTION "\t%" MODE "2,%" MODE "0\n\t" \
"pushf\n\t" \
"pop\t%q1" \
: "+r"(x), "=rm"(*f) \
: "r"(y), "i"(~FMASK), "r"(*f & FMASK) \
: "cc")
#define NATIVE_ALU2(MODE, INSTRUCTION) \
do { \
intptr_t flags; \
asm("pushf\n\t" \
"andl\t%3,(%%rsp)\n\t" \
"orl\t%4,(%%rsp)\n\t" \
"popf\n\t" INSTRUCTION "\t%" MODE "2,%" MODE "0\n\t" \
"pushf\n\t" \
"pop\t%q1" \
: "+r"(x), "=rm"(flags) \
: "r"(y), "i"(~FMASK), "r"(*f & FMASK) \
: "cc"); \
*f = flags; \
} while (0)
#define NATIVE_ALU2_ANYBITS(INSTRUCTION, MUTATING) \
switch (w) { \
@ -91,13 +95,27 @@ int64_t RunGolden(char w, int h, uint64_t x, uint64_t y, uint32_t *f) {
}
const uint8_t kAluOps[] = {
ALU_ADD, ALU_OR, ALU_ADC, ALU_SBB, ALU_AND, ALU_SUB, ALU_XOR, ALU_CMP, ALU_AND | ALU_TEST,
ALU_ADD, //
ALU_OR, //
ALU_ADC, //
ALU_SBB, //
ALU_AND, //
ALU_SUB, //
ALU_XOR, //
ALU_CMP, //
ALU_AND | ALU_TEST, //
};
const char *const kAluNames[] = {
[ALU_ADD] = "add", [ALU_OR] = "or", [ALU_ADC] = "adc",
[ALU_SBB] = "sbb", [ALU_AND] = "and", [ALU_SUB] = "sub",
[ALU_XOR] = "xor", [ALU_CMP] = "cmp", [ALU_AND | ALU_TEST] = "test",
[ALU_ADD] = "add", //
[ALU_OR] = "or", //
[ALU_ADC] = "adc", //
[ALU_SBB] = "sbb", //
[ALU_AND] = "and", //
[ALU_SUB] = "sub", //
[ALU_XOR] = "xor", //
[ALU_CMP] = "cmp", //
[ALU_AND | ALU_TEST] = "test", //
};
int64_t Alu(int w, int h, uint64_t x, uint64_t y, uint32_t *flags) {

50
test/tool/build/lib/asmdown_test.c
View File

@ -132,3 +132,53 @@ tinymath_acos:\n\
FreeAsmdown(ad);
}
TEST(ParseAsmdown, testClangIsEvil) {
struct Asmdown *ad;
const char *s = "\
#include \"libc/macros.h\"\n\
.source __FILE__\n\
\n\
// Returns arc cosine of 𝑥.\n\
//\n\
// This is a description.\n\
//\n\
// @param 𝑥 is double scalar in low half of %xmm0\n\
// @return double scalar in low half of %xmm0\n\
tinymath_acos:\n\
ezlea tinymath_acosl,ax\n\
jmp _d2ld2\n\
.endfn tinymath_acos,globl\n\
.alias tinymath_acos,acos\n\
";
ad = ParseAsmdown(s, strlen(s));
ASSERT_EQ(2, ad->symbols.n);
EXPECT_EQ(4, ad->symbols.p[0].line);
EXPECT_STREQ("tinymath_acos", ad->symbols.p[0].name);
EXPECT_FALSE(ad->symbols.p[0].javadown->isfileoverview);
EXPECT_STREQ("Returns arc cosine of 𝑥.", ad->symbols.p[0].javadown->title);
EXPECT_STREQ("This is a description.\n", ad->symbols.p[0].javadown->text);
EXPECT_EQ(2, ad->symbols.p[0].javadown->tags.n);
EXPECT_STREQ("param", ad->symbols.p[0].javadown->tags.p[0].tag);
EXPECT_STREQ("𝑥 is double scalar in low half of %xmm0",
ad->symbols.p[0].javadown->tags.p[0].text);
EXPECT_STREQ("return", ad->symbols.p[0].javadown->tags.p[1].tag);
EXPECT_STREQ("double scalar in low half of %xmm0",
ad->symbols.p[0].javadown->tags.p[1].text);
EXPECT_EQ(4, ad->symbols.p[1].line);
EXPECT_STREQ("acos", ad->symbols.p[1].name);
EXPECT_FALSE(ad->symbols.p[1].javadown->isfileoverview);
EXPECT_STREQ("Returns arc cosine of 𝑥.", ad->symbols.p[1].javadown->title);
EXPECT_STREQ("This is a description.\n", ad->symbols.p[1].javadown->text);
EXPECT_EQ(2, ad->symbols.p[1].javadown->tags.n);
EXPECT_STREQ("param", ad->symbols.p[1].javadown->tags.p[0].tag);
EXPECT_STREQ("𝑥 is double scalar in low half of %xmm0",
ad->symbols.p[1].javadown->tags.p[0].text);
EXPECT_STREQ("return", ad->symbols.p[1].javadown->tags.p[1].tag);
EXPECT_STREQ("double scalar in low half of %xmm0",
ad->symbols.p[1].javadown->tags.p[1].text);
FreeAsmdown(ad);
}

4
test/tool/build/lib/machine_test.c
View File

@ -145,10 +145,10 @@ TEST(machine, test) {
TEST(machine, testFpu) {
VirtualRecv(m, 0, kPi80, sizeof(kPi80));
ASSERT_EQ(kMachineHalt, ExecuteUntilHalt(m));
ASSERT_TRUE(fabs(3.14159 - FpuPop(m)) < 0.0001);
ASSERT_TRUE(fabsl(3.14159 - FpuPop(m)) < 0.0001);
m->ip = 0;
ASSERT_EQ(kMachineHalt, ExecuteUntilHalt(m));
ASSERT_TRUE(fabs(3.14159 - FpuPop(m)) < 0.0001);
ASSERT_TRUE(fabsl(3.14159 - FpuPop(m)) < 0.0001);
}
BENCH(machine, benchPrimeNumberPrograms) {