33 lines
874 B
C
33 lines
874 B
C
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// REQUIRES: arm-registered-target
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// RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -w -o - %s | FileCheck %s
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typedef long long int64_t;
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typedef unsigned int uint32_t;
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int64_t foo(int64_t v, volatile int64_t *p)
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{
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register uint32_t rl asm("r1");
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register uint32_t rh asm("r2");
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int64_t r;
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uint32_t t;
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__asm__ __volatile__( \
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"ldrexd%[_rl], %[_rh], [%[_p]]" \
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: [_rl] "=&r" (rl), [_rh] "=&r" (rh) \
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: [_p] "p" (p) : "memory");
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// CHECK: call { i32, i32 } asm sideeffect "ldrexd$0, $1, [$2]", "=&{r1},=&{r2},r,~{memory}"(i64*
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return r;
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}
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// Make sure we translate register names properly.
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void bar (void) {
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register unsigned int rn asm("r14");
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register unsigned int d asm("r2");
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// CHECK: call i32 asm sideeffect "sub $1, $1, #32", "={r2},{lr}"
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asm volatile ("sub %1, %1, #32" : "=r"(d) : "r"(rn));
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}
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