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0f1c1be196
We have a new policy in place making links to private resources something we try to avoid in source and test files. Normally, we'd organically switch to the new policy rather than make a sweeping change across a project. However, Clang is in a somewhat special circumstance currently: recently, I've had several new contributors run into rdar links around test code which their patch was changing the behavior of. This turns out to be a surprisingly bad experience, especially for newer folks, for a handful of reasons: not understanding what the link is and feeling intimidated by it, wondering whether their changes are actually breaking something important to a downstream in some way, having to hunt down strangers not involved with the patch to impose on them for help, accidental pressure from asking for potentially private IP to be made public, etc. Because folks run into these links entirely by chance (through fixing bugs or working on new features), there's not really a set of problematic links to focus on -- all of the links have basically the same potential for causing these problems. As a result, this is an omnibus patch to remove all such links. This was not a mechanical change; it was done by manually searching for rdar, radar, radr, and other variants to find all the various problematic links. From there, I tried to retain or reword the surrounding comments so that we would lose as little context as possible. However, because most links were just a plain link with no supporting context, the majority of the changes are simple removals. Differential Review: https://reviews.llvm.org/D158071
58 lines
1.8 KiB
C
58 lines
1.8 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(void) {
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// CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call ptr @foo()
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// CHECK: call void asm "foobar", "=*m,*m,~{dirflag},~{fpsr},~{flags}"(ptr elementtype(i32) [[REGCALLRESULT]], ptr elementtype(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(void) {
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// CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call ptr @foo()
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// CHECK: load i32, ptr [[REGCALLRESULT]]
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// CHECK: call i32 asm
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// CHECK: store i32 {{%[a-zA-Z0-9\.]+}}, ptr [[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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// 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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// CHECK: @test6
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int test6(void) {
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typedef unsigned char __attribute__((vector_size(8))) _m64u8;
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_m64u8 __attribute__((aligned(16))) Mu8_0, __attribute__((aligned(16))) Mu8_1;
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// CHECK: call x86_mmx asm "nop", "=y,0,~{dirflag},~{fpsr},~{flags}"(x86_mmx %1)
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asm ("nop" : "=y"(Mu8_1 ) : "0"(Mu8_0 ));
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return 0;
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}
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