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https://github.com/c64scene-ar/llvm-6502.git
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Add support for the 'x' constraint.
Part of rdar://9307836 and rdar://9119939 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134215 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -7483,6 +7483,7 @@ ARMTargetLowering::getConstraintType(const std::string &Constraint) const {
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case 'l': return C_RegisterClass;
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case 'l': return C_RegisterClass;
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case 'w': return C_RegisterClass;
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case 'w': return C_RegisterClass;
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case 'h': return C_RegisterClass;
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case 'h': return C_RegisterClass;
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case 'x': return C_RegisterClass;
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}
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}
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} else if (Constraint.size() == 2) {
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} else if (Constraint.size() == 2) {
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switch (Constraint[0]) {
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switch (Constraint[0]) {
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@ -7555,6 +7556,14 @@ ARMTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
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if (VT.getSizeInBits() == 128)
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if (VT.getSizeInBits() == 128)
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return RCPair(0U, ARM::QPRRegisterClass);
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return RCPair(0U, ARM::QPRRegisterClass);
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break;
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break;
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case 'x':
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if (VT == MVT::f32)
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return RCPair(0U, ARM::SPR_8RegisterClass);
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if (VT.getSizeInBits() == 64)
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return RCPair(0U, ARM::DPR_8RegisterClass);
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if (VT.getSizeInBits() == 128)
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return RCPair(0U, ARM::QPR_8RegisterClass);
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break;
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}
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}
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}
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}
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if (StringRef("{cc}").equals_lower(Constraint))
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if (StringRef("{cc}").equals_lower(Constraint))
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@ -58,3 +58,13 @@ entry:
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call void asm sideeffect "flds s15, $0 \0A", "*^Uvm,~{s15}"(float* @k.2126) nounwind
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call void asm sideeffect "flds s15, $0 \0A", "*^Uvm,~{s15}"(float* @k.2126) nounwind
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ret i32 0
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ret i32 0
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}
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}
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; Radar 9307836 & 9119939
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define float @t6(float %y) nounwind {
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entry:
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; CHECK: t6
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; CHECK: flds s15, s0
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%0 = tail call float asm "flds s15, $0", "=x"() nounwind
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ret float %0
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}
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