/* Based on execute/simd-1.c, modified by joern.rennecke@st.com to trigger a reload bug. Verified for gcc mainline from 20050722 13:00 UTC for sh-elf -m4 -O2. */ #ifndef STACK_SIZE #define STACK_SIZE (256*1024) #endif typedef struct { char c[STACK_SIZE/2]; } big_t; typedef int __attribute__((mode(SI))) __attribute__((vector_size (8))) vecint; typedef int __attribute__((mode(SI))) siint; vecint i = { 150, 100 }; vecint j = { 10, 13 }; vecint k; union { vecint v; siint i[2]; } res; void verify (siint a1, siint a2, siint b1, siint b2, big_t big) { if (a1 != b1 || a2 != b2) abort (); } int main () { big_t big; vecint k0, k1, k2, k3, k4, k5, k6, k7; k0 = i + j; res.v = k0; verify (res.i[0], res.i[1], 160, 113, big); k1 = i * j; res.v = k1; verify (res.i[0], res.i[1], 1500, 1300, big); k2 = i / j; /* This is the observed failure - reload 0 has the wrong type and thus the conflict with reload 1 is missed: (insn:HI 94 92 96 1 pr23135.c:46 (parallel [ (set (subreg:SI (reg:DI 253) 0) (div:SI (reg:SI 4 r4) (reg:SI 5 r5))) (clobber (reg:SI 146 pr)) (clobber (reg:DF 64 fr0)) (clobber (reg:DF 66 fr2)) (use (reg:PSI 151 )) (use (reg/f:SI 256)) ]) 60 {divsi3_i4} (insn_list:REG_DEP_TRUE 90 (insn_list:REG_DEP_TRUE 89 (insn_list:REG_DEP_TRUE 42 (insn_list:REG_DEP_TRUE 83 (insn_list:REG_DEP_TRUE 92 (insn_list:REG_DEP_TRUE 91 (nil))))))) (expr_list:REG_DEAD (reg:SI 4 r4) (expr_list:REG_DEAD (reg:SI 5 r5) (expr_list:REG_UNUSED (reg:DF 66 fr2) (expr_list:REG_UNUSED (reg:DF 64 fr0) (expr_list:REG_UNUSED (reg:SI 146 pr) (insn_list:REG_RETVAL 91 (nil)))))))) Reloads for insn # 94 Reload 0: reload_in (SI) = (plus:SI (reg/f:SI 14 r14) (const_int 64 [0x40])) GENERAL_REGS, RELOAD_FOR_OUTADDR_ADDRESS (opnum = 0) reload_in_reg: (plus:SI (reg/f:SI 14 r14) (const_int 64 [0x40])) reload_reg_rtx: (reg:SI 3 r3) Reload 1: GENERAL_REGS, RELOAD_FOR_OUTPUT_ADDRESS (opnum = 0), can't combine, se condary_reload_p reload_reg_rtx: (reg:SI 3 r3) Reload 2: reload_out (SI) = (mem:SI (plus:SI (plus:SI (reg/f:SI 14 r14) (const_int 64 [0x40])) (const_int 28 [0x1c])) [ 16 S8 A32]) FPUL_REGS, RELOAD_FOR_OUTPUT (opnum = 0) reload_out_reg: (subreg:SI (reg:DI 253) 0) reload_reg_rtx: (reg:SI 150 fpul) secondary_out_reload = 1 Reload 3: reload_in (SI) = (symbol_ref:SI ("__sdivsi3_i4") [flags 0x1]) GENERAL_REGS, RELOAD_FOR_INPUT (opnum = 1), can't combine reload_in_reg: (reg/f:SI 256) reload_reg_rtx: (reg:SI 3 r3) */ res.v = k2; verify (res.i[0], res.i[1], 15, 7, big); k3 = i & j; res.v = k3; verify (res.i[0], res.i[1], 2, 4, big); k4 = i | j; res.v = k4; verify (res.i[0], res.i[1], 158, 109, big); k5 = i ^ j; res.v = k5; verify (res.i[0], res.i[1], 156, 105, big); k6 = -i; res.v = k6; verify (res.i[0], res.i[1], -150, -100, big); k7 = ~i; res.v = k7; verify (res.i[0], res.i[1], -151, -101, big); k = k0 + k1 + k3 + k4 + k5 + k6 + k7; res.v = k; verify (res.i[0], res.i[1], 1675, 1430, big); k = k0 * k1 * k3 * k4 * k5 * k6 * k7; res.v = k; verify (res.i[0], res.i[1], 1456467968, -1579586240, big); k = k0 / k1 / k2 / k3 / k4 / k5 / k6 / k7; res.v = k; verify (res.i[0], res.i[1], 0, 0, big); exit (0); }