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llvm-6502/test/FrontendC/2010-05-18-asmsched.c
Duncan Sands bb8f59003c Remove explicit uses of -emit-llvm, the test infrastructure adds it
automatically.  Use -S with llvm-gcc rather than -c, so tests can
work when llvm-gcc is really dragonegg (which can output IR with -S
but not -c).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120158 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-25 21:24:35 +00:00

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C

// RUN: %llvmgcc %s -S -O3 -o - | llc -march=x86-64 -mtriple=x86_64-apple-darwin | FileCheck %s
// r9 used to be clobbered before its value was moved to r10. 7993104.
void foo(int x, int y) {
// CHECK: bar
// CHECK: movq %r9, %r10
// CHECK: movq %rdi, %r9
// CHECK: bar
register int lr9 asm("r9") = x;
register int lr10 asm("r10") = y;
int foo;
asm volatile("bar" : "=r"(lr9) : "r"(lr9), "r"(lr10));
foo = lr9;
lr9 = x;
lr10 = foo;
asm volatile("bar" : "=r"(lr9) : "r"(lr9), "r"(lr10));
}