[llvm-bugs] [Bug 42415] New: Cannot select: 0xe87fb38: i32, ch = AtomicLoadMax
via llvm-bugs
llvm-bugs at lists.llvm.org
Wed Jun 26 20:57:47 PDT 2019
https://bugs.llvm.org/show_bug.cgi?id=42415
Bug ID: 42415
Summary: Cannot select: 0xe87fb38: i32,ch = AtomicLoadMax
Product: libraries
Version: 8.0
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Backend: MIPS
Assignee: unassignedbugs at nondot.org
Reporter: zhaixiang at loongson.cn
CC: llvm-bugs at lists.llvm.org
Created attachment 22147
--> https://bugs.llvm.org/attachment.cgi?id=22147&action=edit
/tmp/Atomics-bafc90.c
Hi,
$ clang++ -S -c llvm-project/clang/test/CodeGen/Atomics.c -o Atomics.S
clang-8: warning: treating 'c' input as 'c++' when in C++ mode, this behavior
is deprecated [-Wdeprecated]
llvm-project/clang/test/CodeGen/Atomics.c:52:39: warning: the semantics of this
intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
(void) __sync_fetch_and_nand (&sc, 1); // CHECK: atomicrmw nand i8
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:53:39: warning: the semantics of this
intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
(void) __sync_fetch_and_nand (&uc, 1); // CHECK: atomicrmw nand i8
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:54:39: warning: the semantics of this
intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
(void) __sync_fetch_and_nand (&ss, 1); // CHECK: atomicrmw nand i16
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:55:39: warning: the semantics of this
intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
(void) __sync_fetch_and_nand (&us, 1); // CHECK: atomicrmw nand i16
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:56:39: warning: the semantics of this
intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
(void) __sync_fetch_and_nand (&si, 1); // CHECK: atomicrmw nand i32
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:57:39: warning: the semantics of this
intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
(void) __sync_fetch_and_nand (&ui, 1); // CHECK: atomicrmw nand i32
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:58:40: warning: the semantics of this
intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
(void) __sync_fetch_and_nand (&sll, 1); // CHECK: atomicrmw nand i64
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:59:40: warning: the semantics of this
intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
(void) __sync_fetch_and_nand (&ull, 1); // CHECK: atomicrmw nand i64
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:110:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
sc = __sync_fetch_and_nand (&sc, 11); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:111:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
uc = __sync_fetch_and_nand (&uc, 11); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:112:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
ss = __sync_fetch_and_nand (&ss, 11); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:113:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
us = __sync_fetch_and_nand (&us, 11); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:114:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
si = __sync_fetch_and_nand (&si, 11); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:115:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
ui = __sync_fetch_and_nand (&ui, 11); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:116:40: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
sll = __sync_fetch_and_nand (&sll, 11); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:117:40: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:168:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
sc = __sync_nand_and_fetch (&sc, uc); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:171:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
uc = __sync_nand_and_fetch (&uc, uc); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:174:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
ss = __sync_nand_and_fetch (&ss, uc); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:177:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
us = __sync_nand_and_fetch (&us, uc); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:180:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
si = __sync_nand_and_fetch (&si, uc); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:183:38: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
ui = __sync_nand_and_fetch (&ui, uc); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:186:40: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
sll = __sync_nand_and_fetch (&sll, uc); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
llvm-project/clang/test/CodeGen/Atomics.c:189:40: warning: the semantics of
this intrinsic changed with GCC version 4.4 - the
newer semantics are provided here
[-Wsync-fetch-and-nand-semantics-changed]
ull = __sync_nand_and_fetch (&ull, uc); // CHECK: atomicrmw nand
~~~~~~~~~~~~~~~~~~~~~ ^
fatal error: error in backend: Cannot select: 0xe87fb38: i32,ch =
AtomicLoadMax<(volatile load store monotonic 4 on @si)>
0xe882f88, 0xe8d3b08, 0xe880970
0xe8d3b08: i64,ch = load<(load 8 from got)> 0xe820da8, 0xe8a0b58, undef:i64
0xe8a0b58: i64 = MipsISD::Wrapper Register:i64 %0,
TargetGlobalAddress:i64<i32* @si> 0 [TF=15]
0xe8805c8: i64 = Register %0
0xe8d40b8: i64 = TargetGlobalAddress<i32* @si> 0 [TF=15]
0xe8d0dc0: i64 = undef
0xe880970: i32,ch = load<(dereferenceable load 4 from %ir.7)> 0xe8d3f18,
FrameIndex:i64<6>, undef:i64
0xe882eb8: i64 = FrameIndex<6>
0xe8d0dc0: i64 = undef
In function: _Z11test_atomicv
clang-8: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 8.0.0
Target: mips64el-redhat-linux
Thread model: posix
InstalledDir: /usr/bin
clang-8: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.llvm.org/ and include the crash backtrace, preprocessed source,
and associated run script.
clang-8: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-8: note: diagnostic msg: /tmp/Atomics-bafc90.c
clang-8: note: diagnostic msg: /tmp/Atomics-bafc90.sh
clang-8: note: diagnostic msg:
********************
Thanks,
Leslie Zhai
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