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78982e2b84
https://bugs.llvm.org/show_bug.cgi?id=32379 (Closes: #876072) * Fix sanitizer build failure with glibc-2.26. * build using gold on arm64 and s390x. For backports, arm64 might still need the BFD linker, and building with only one or two processes in parallel. * On amd64, s390x, arm64 and ppc64el, build with -g1 instead of -g. * Set CMAKE_CXX_FLAGS_RELWITHDEBINFO and pass opt_flags.
40 lines
1.5 KiB
Diff
40 lines
1.5 KiB
Diff
Index: llvm-toolchain-3.9-3.9.1/lib/Target/ARM/ARMISelLowering.cpp
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===================================================================
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--- llvm-toolchain-3.9-3.9.1.orig/lib/Target/ARM/ARMISelLowering.cpp
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+++ llvm-toolchain-3.9-3.9.1/lib/Target/ARM/ARMISelLowering.cpp
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@@ -10805,8 +10805,8 @@ static void computeKnownBits(SelectionDA
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if (Op.getOpcode() == ARMISD::CMOV) {
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APInt KZ2(KnownZero.getBitWidth(), 0);
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APInt KO2(KnownOne.getBitWidth(), 0);
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- computeKnownBits(DAG, Op.getOperand(1), KnownZero, KnownOne);
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- computeKnownBits(DAG, Op.getOperand(2), KZ2, KO2);
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+ computeKnownBits(DAG, Op.getOperand(0), KnownZero, KnownOne);
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+ computeKnownBits(DAG, Op.getOperand(1), KZ2, KO2);
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KnownZero &= KZ2;
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KnownOne &= KO2;
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Index: llvm-toolchain-3.9-3.9.1/test/CodeGen/ARM/no-cmov2bfi.ll
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===================================================================
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--- /dev/null
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+++ llvm-toolchain-3.9-3.9.1/test/CodeGen/ARM/no-cmov2bfi.ll
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@@ -0,0 +1,19 @@
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+; RUN: llc < %s -mtriple=thumbv7 | FileCheck --check-prefix=CHECK-NOBFI %s
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+
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+declare zeroext i1 @dummy()
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+
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+define i8 @test(i8 %a1, i1 %c) {
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+; CHECK-NOBFI-NOT: bfi
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+; CHECK-NOBFI: bl dummy
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+; CHECK-NOBFI: cmp r0, #0
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+; CHECK-NOBFI: it ne
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+; CHECK-NOBFI: orrne [[REG:r[0-9]+]], [[REG]], #8
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+; CHECK-NOBFI: mov r0, [[REG]]
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+
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+ %1 = and i8 %a1, -9
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+ %2 = select i1 %c, i8 %1, i8 %a1
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+ %3 = tail call zeroext i1 @dummy()
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+ %4 = or i8 %2, 8
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+ %ret = select i1 %3, i8 %4, i8 %2
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+ ret i8 %ret
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+}
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