48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s
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// PR3800
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int *foo(void);
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// CHECK: @test1
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void test1() {
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// CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call i32* @foo()
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// CHECK: call void asm "foobar", "=*m,*m,~{dirflag},~{fpsr},~{flags}"(i32* [[REGCALLRESULT]], i32* [[REGCALLRESULT]])
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asm ("foobar" : "+m"(*foo()));
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}
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// CHECK: @test2
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void test2() {
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// CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call i32* @foo()
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// CHECK: load i32* [[REGCALLRESULT]]
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// CHECK: call i32 asm
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// CHECK: store i32 {{%[a-zA-Z0-9\.]+}}, i32* [[REGCALLRESULT]]
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asm ("foobar" : "+r"(*foo()));
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}
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// PR7338
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// CHECK: @test3
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void test3(int *vout, int vin)
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{
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// CHECK: call void asm "opr $0,$1", "=*r|m|r,r|m|r,~{edi},~{dirflag},~{fpsr},~{flags}"
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asm ("opr %[vout],%[vin]"
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: [vout] "=r,=m,=r" (*vout)
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: [vin] "r,m,r" (vin)
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: "edi");
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}
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// PR8959 - This should implicitly truncate the immediate to a byte.
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// CHECK: @test4
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int test4(volatile int *addr) {
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unsigned char oldval;
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// CHECK: call i8 asm "frob $0", "=r,0{{.*}}"(i8 -1)
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__asm__ ("frob %0" : "=r"(oldval) : "0"(0xff));
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return (int)oldval;
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}
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// <rdar://problem/10919182> - This should have both inputs be of type x86_mmx.
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// CHECK: @test5
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typedef long long __m64 __attribute__((__vector_size__(8)));
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__m64 test5(__m64 __A, __m64 __B) {
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// CHECK: call x86_mmx asm "pmulhuw $1, $0\0A\09", "=y,y,0,~{dirflag},~{fpsr},~{flags}"(x86_mmx %{{.*}}, x86_mmx %{{.*}})
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asm ("pmulhuw %1, %0\n\t" : "+y" (__A) : "y" (__B));
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return __A;
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}
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