derek.holloway
7502bf64a4
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43 lines
1.7 KiB
C
43 lines
1.7 KiB
C
// RUN: %clang_cc1 -triple sparc-unknown-unknown -emit-llvm %s -o - | FileCheck %s
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// CHECK: define{{.*}} float @fabsf(float noundef %a)
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// CHECK: %{{.*}} = call float asm sideeffect "fabss $1, $0;", "=e,f"(float %{{.*}})
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float fabsf(float a) {
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float res;
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__asm __volatile__("fabss %1, %0;"
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: /* reg out*/ "=e"(res)
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: /* reg in */ "f"(a));
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return res;
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}
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void test_gcc_registers(void) {
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register unsigned int regO6 asm("o6") = 0;
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register unsigned int regSP asm("sp") = 1;
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register unsigned int reg14 asm("r14") = 2;
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register unsigned int regI6 asm("i6") = 3;
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register unsigned int regFP asm("fp") = 4;
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register unsigned int reg30 asm("r30") = 5;
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register float fF20 asm("f20") = 8.0;
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register double dF20 asm("f20") = 11.0;
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register long double qF20 asm("f20") = 14.0;
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// Test remapping register names in register ... asm("rN") statments.
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// CHECK: call void asm sideeffect "add $0,$1,$2", "{r14},{r14},{r14}"
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asm volatile("add %0,%1,%2" : : "r" (regO6), "r" (regSP), "r" (reg14));
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// CHECK: call void asm sideeffect "add $0,$1,$2", "{r30},{r30},{r30}"
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asm volatile("add %0,%1,%2" : : "r" (regI6), "r" (regFP), "r" (reg30));
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// CHECK: call void asm sideeffect "fadds $0,$1,$2", "{f20},{f20},{f20}"
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asm volatile("fadds %0,%1,%2" : : "f" (fF20), "f" (fF20), "f"(fF20));
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// CHECK: call void asm sideeffect "faddd $0,$1,$2", "{f20},{f20},{f20}"
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asm volatile("faddd %0,%1,%2" : : "f" (dF20), "f" (dF20), "f"(dF20));
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// CHECK: call void asm sideeffect "faddq $0,$1,$2", "{f20},{f20},{f20}"
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asm volatile("faddq %0,%1,%2" : : "f" (qF20), "f" (qF20), "f"(qF20));
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}
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