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5c2240a896
On RV64, long long (64-bit) fits in a single general-purpose register. The existing load/store calls already handle 64-bit values correctly. The 'not implemented' errors were vestigial from 32-bit architectures where long long requires a register pair. Removing these errors allows inline asm to accept 64-bit integer operands on RV64, which is important since this is the native register width.
58 lines
989 B
C
58 lines
989 B
C
#include <stdio.h>
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/* P1.1: riscv64 inline asm with 64-bit immediate (li).
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Tests that long long immediates assemble correctly,
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including the lui+addi sequence for large constants. */
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#ifdef __riscv
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long long test_li_small(void)
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{
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long long r;
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asm("li %0, 42" : "=r"(r));
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return r;
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}
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long long test_li_large(void)
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{
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long long r;
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asm("li %0, 0x123456789ABCDEF0" : "=r"(r));
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return r;
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}
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long long test_li_negative(void)
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{
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long long r;
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asm("li %0, -1" : "=r"(r));
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return r;
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}
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int main(void)
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{
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int ok = 1;
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if (test_li_small() != 42) {
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printf("FAIL: li small\n");
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ok = 0;
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}
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if (test_li_large() != 0x123456789ABCDEF0LL) {
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printf("FAIL: li large\n");
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ok = 0;
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}
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if (test_li_negative() != -1) {
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printf("FAIL: li negative\n");
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ok = 0;
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}
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printf("%s\n", ok ? "PASS" : "FAIL");
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return ok ? 0 : 1;
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}
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#else
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int main(void)
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{
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printf("SKIP\n");
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return 0;
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}
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#endif
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