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Testcase for llvm-gcc checkin 104042. 

llvm-svn: 104043
This commit is contained in:
Dale Johannesen 2010-05-18 19:03:51 +00:00
parent 87b915a9bc
commit fb7df5317a
1 changed files with 19 additions and 0 deletions
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llvm/test/FrontendC/2010-05-18-asmsched.c Normal file
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// RUN: %llvmgcc %s -c -O3 -m64 -emit-llvm -o - | llc -march=x86-64 -mtriple=x86_64-apple-darwin | FileCheck %s
// XFAIL: *
// XTARGET: x86,i386,i686
// 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));
}